20230601Exhibits 27-30 - Brady DI Testimony.pdf

BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION
CASE NO. IPC-E-23-11
IDAHO POWER COMPANY
BRADY, DI
TESTIMONY
EXHIBIT NO. 27
IDAHO JURISDICTION
Tariff Description January February March April May June July August September October November December Total
9S 19,255,806 19,379,168 18,312,689 17,438,189 17,274,189 18,892,979 21,511,585 22,634,444 21,075,381 18,294,341 17,766,240 18,647,900 230,482,910
9P 2,847,710 2,797,128 2,673,968 2,730,602 2,654,158 2,888,200 3,598,743 3,759,083 3,624,338 2,989,855 2,861,018 2,785,731 36,210,534
9T 19,615 18,436 16,813 19,323 21,093 21,097 22,257 18,131 19,404 17,795 20,650 21,615 236,229
Total Rate 9 22,123,131 22,194,732 21,003,470 20,188,114 19,949,439 21,802,275 25,132,585 26,411,659 24,719,123 21,301,992 20,647,907 21,455,245 266,929,672
19S 32,382 31,924 29,108 31,633 30,958 30,257 33,936 36,021 36,347 30,601 32,573 30,812 386,553
19P 9,788,962 10,087,930 9,021,917 9,628,156 9,321,832 9,654,913 11,877,722 12,295,915 12,512,697 9,808,203 10,023,196 9,713,467 123,734,911
19T 136,919 138,278 104,370 112,798 131,207 136,105 151,278 159,264 172,613 130,087 123,520 133,663 1,630,102
Total Rate 19 9,958,263 10,258,132 9,155,395 9,772,588 9,483,997 9,821,275 12,062,937 12,491,200 12,721,657 9,968,892 10,179,289 9,877,942 125,751,566
24S 239,676 234,703 264,214 1,982,667 10,256,227 23,998,633 33,935,281 31,863,690 26,084,365 9,504,531 1,654,254 309,507 140,327,749
24T 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 24 239,676 234,703 264,214 1,982,667 10,256,227 23,998,633 33,935,281 31,863,690 26,084,365 9,504,531 1,654,254 309,507 140,327,749
Exhibit No. 27
Case No. IPC-E-23-11
J. Brady, IPC
Page 1 of 5
STATE OF OREGON
Tariff Description January February March April May June July August September October November December Total
9S 868,590 858,798 783,657 686,941 625,549 617,050 700,902 753,584 746,930 744,550 869,457 837,561 9,093,570
9P 79,203 79,288 75,140 74,720 67,796 72,545 90,624 98,107 89,781 73,042 71,190 73,091 944,527
9T 20,984 19,888 17,705 18,845 15,375 13,880 14,046 15,419 13,326 12,368 15,069 17,011 193,916
Total Rate 9 968,778 957,974 876,503 780,506 708,720 703,475 805,573 867,110 850,037 829,960 955,715 927,663 10,232,013
19S 0 0 0 0 0 0 0 0 0 0 0 0 0
19P 805,762 814,550 761,864 886,325 816,688 821,349 1,021,029 964,055 1,034,910 762,027 805,100 767,224 10,260,882
19T 649,323 299,320 476,115 661,593 503,234 613,486 647,969 622,494 510,390 567,447 618,667 627,932 6,797,970
Total Rate 19 1,455,085 1,113,870 1,237,979 1,547,918 1,319,922 1,434,835 1,668,998 1,586,550 1,545,300 1,329,474 1,423,767 1,395,156 17,058,851
0
24S 16,658 14,634 14,817 83,503 406,033 1,084,281 1,660,443 1,722,943 1,229,137 250,619 35,595 17,785 6,536,448
24T 0 0 0 0 0 0 0 0 0 0 0 0 0
Total 24 16,658 14,634 14,817 83,503 406,033 1,084,281 1,660,443 1,722,943 1,229,137 250,619 35,595 17,785 6,536,448
Exhibit No. 27
Case No. IPC-E-23-11
J. Brady, IPC
Page 2 of 5
I D A H O P O W E R C O M P A N Y
SUMMARY OF REVENUE FORECAST
IDAHO JURISDICTION
BY MONTH BY RATE
Tariff Description January February March April May June July August September October November December Total
1 - Residential Serv. 53,158,012 48,971,387 44,396,809 35,487,498 32,106,869 33,384,745 43,584,432 52,153,852 43,060,429 31,951,125 35,429,329 45,908,953 499,593,439
3 - Residential Master Meter 42,645 39,137 35,610 28,652 25,858 26,111 31,946 37,523 32,312 25,870 28,570 36,647 390,879
5 - Residential TOD 160,423 146,570 133,417 107,754 99,275 101,088 124,746 148,054 129,044 100,419 105,983 138,050 1,494,824
6 - Residential On-site Generation 1,440,581 1,144,090 872,781 661,961 587,409 620,389 966,836 1,082,351 856,254 702,623 1,071,531 1,560,564 11,567,368
7 - Small General Serv. 1,593,596 1,540,368 1,370,797 1,214,025 1,120,789 1,193,150 1,434,705 1,539,435 1,371,271 1,172,561 1,175,078 1,376,848 16,102,622
8 - Small General Serv. On-Site Generation 4,798 4,389 3,629 2,560 2,177 1,874 2,967 4,068 4,248 2,762 4,320 5,921 43,713
9 - Large General Serv. 22,123,131 22,194,732 21,003,470 20,188,114 19,949,439 21,802,275 25,132,585 26,411,659 24,719,123 21,301,992 20,647,907 21,455,245 266,929,672
15 - Dusk/Dawn Lighting 105,010 105,442 105,482 105,457 105,447 105,364 105,178 104,885 104,876 104,726 104,945 105,041 1,261,853
19 - Uniform Rate Cont. 9,958,263 10,258,132 9,155,395 9,772,588 9,483,997 9,821,275 12,062,937 12,491,200 12,721,657 9,968,892 10,179,289 9,877,942 125,751,566
24 - Irrigation & Pump. 239,676 234,703 264,214 1,982,667 10,256,227 23,998,633 33,935,281 31,863,690 26,084,365 9,504,531 1,654,254 309,507 140,327,749
40 - Unmetered Gen. Serv. 91,355 92,856 93,320 93,769 94,791 95,315 95,739 96,660 97,237 97,569 97,770 97,907 1,144,288
41 - Municipal St. Light. 309,637 294,498 268,883 311,728 286,073 282,636 282,155 281,011 283,919 285,135 287,859 289,786 3,463,322
42 - Traffic Control Light. 14,399 14,482 12,595 14,482 13,441 13,098 13,722 13,617 14,013 13,719 14,098 13,942 165,609
Total Idaho Rates 89,241,526 85,040,785 77,716,403 69,971,254 74,131,791 91,445,953 117,773,229 126,228,004 109,478,748 75,231,922 70,800,934 81,176,352 1,068,236,903
Special Contracts
26 - Micron (IPC Energy) 2,377,310 2,190,961 2,284,587 2,233,527 2,453,393 2,547,535 2,638,119 2,673,395 2,553,247 2,421,107 2,434,504 2,546,554 29,354,238
26 - Micron (Embedded Fixed) 9,124 13,682 21,703 26,955 32,083 33,357 34,803 31,865 26,099 19,660 11,024 7,759 268,115
26 - Micron Total 2,386,434 2,204,644 2,306,291 2,260,482 2,485,476 2,580,892 2,672,922 2,705,260 2,579,346 2,440,767 2,445,528 2,554,312 29,622,353
29 - J R Simplot 650,728 686,573 683,513 519,784 629,771 614,308 652,906 644,856 640,294 687,922 683,806 664,908 7,759,368
30 - DOE 1,137,466 1,077,733 1,004,219 862,357 752,934 707,700 643,799 633,233 668,101 943,506 986,909 1,129,751 10,547,708
Total Specials 4,174,628 3,968,950 3,994,023 3,642,623 3,868,180 3,902,900 3,969,627 3,983,349 3,887,741 4,072,195 4,116,242 4,348,971 47,929,429
Total Idaho Firm Sales 93,416,155 89,009,736 81,710,426 73,613,877 77,999,972 95,348,853 121,742,856 130,211,353 113,366,489 79,304,117 74,917,176 85,525,323 1,116,166,332
12 MONTHS ENDING DECEMBER 31, 2023
Exhibit No. 27
Case No. IPC-E-23-11
J. Brady, IPC
Page 3 of 5
I D A H O P O W E R C O M P A N Y
SUMMARY OF REVENUE FORECAST
STATE OF OREGON
BY MONTH BY RATE
Tariff Description January February March April May June July August September October November December Total
01 - Residential Serv. 2,250,893 2,049,815 1,744,816 1,377,855 1,117,003 1,023,178 1,254,244 1,358,041 1,240,290 988,950 1,301,481 1,846,107 17,552,674
05 - Residential TOD 1,102 1,033 746 579 480 511 767 772 609 465 657 963 8,687
07 - Small General Serv. 212,363 207,026 184,413 155,145 139,723 143,982 181,267 180,318 157,357 128,929 148,102 181,179 2,019,803
09 - Large General Serv. 968,778 957,974 876,503 780,506 708,720 703,475 805,573 867,110 850,037 829,960 955,715 927,663 10,232,013
15 - Dusk/Dawn Lighting 9,000 8,934 8,944 8,970 8,949 8,972 8,927 8,961 8,933 8,944 8,958 8,960 107,451
19 - Uniform Rate Cont. 1,455,085 1,113,870 1,237,979 1,547,918 1,319,922 1,434,835 1,668,998 1,586,550 1,545,300 1,329,474 1,423,767 1,395,156 17,058,851
24 - Irrigation Service 16,658 14,634 14,817 83,503 406,033 1,084,281 1,660,443 1,722,943 1,229,137 250,619 35,595 17,785 6,536,448
40 - Unmetered Gen. Serv. 28 28 28 28 28 28 28 28 28 28 28 28 333
41 - Municipal St. Light. 12,585 12,530 12,489 12,374 12,321 12,270 12,200 12,235 12,334 12,307 12,371 12,433 148,451
42 - Traffic Control Light. 210 205 190 171 168 163 174 165 160 158 161 204 2,130
Total Oregon Firm Sales 4,926,702 4,366,048 4,080,924 3,967,049 3,713,346 4,411,696 5,592,620 5,737,123 5,044,186 3,549,835 3,886,835 4,390,477 53,666,841
12 MONTHS ENDING DECEMBER 31, 2023
Exhibit No. 27
Case No. IPC-E-23-11
J. Brady, IPC
Page 4 of 5
I D A H O P O W E R C O M P A N Y
SUMMARY OF REVENUE FORECAST
TOTAL COMPANY
Tariff Description January February March April May June July August September October November December Total
1 - Residential Serv. 55,408,906 51,021,201 46,141,625 36,865,353 33,223,872 34,407,923 44,838,676 53,511,892 44,300,719 32,940,075 36,730,810 47,755,060 517,146,113
3 - Residential Master Meter 42,645 39,137 35,610 28,652 25,858 26,111 31,946 37,523 32,312 25,870 28,570 36,647 390,879
5 - Residential TOD 161,525 147,603 134,163 108,332 99,755 101,599 125,514 148,827 129,654 100,884 106,641 139,013 1,503,511
6 - Residential On-site Generation 1,440,581 1,144,090 872,781 661,961 587,409 620,389 966,836 1,082,351 856,254 702,623 1,071,531 1,560,564 11,567,368
7 - Small General Serv. 1,805,959 1,747,394 1,555,210 1,369,170 1,260,512 1,337,132 1,615,972 1,719,753 1,528,628 1,301,489 1,323,179 1,558,027 18,122,425
8 - Small General Serv. On-site Generation 4,798 4,389 3,629 2,560 2,177 1,874 2,967 4,068 4,248 2,762 4,320 5,921 43,713
9 - Large General Serv. 23,091,909 23,152,706 21,879,973 20,968,620 20,658,159 22,505,750 25,938,157 27,278,769 25,569,160 22,131,952 21,603,623 22,382,908 277,161,685
15 - Dusk/Dawn Lighting 114,010 114,376 114,426 114,427 114,396 114,336 114,104 113,846 113,809 113,670 113,903 114,001 1,369,304
19 - Uniform Rate Cont. 11,413,348 11,372,002 10,393,374 11,320,506 10,803,919 11,256,110 13,731,935 14,077,749 14,266,957 11,298,366 11,603,056 11,273,097 142,810,418
24 - Irrigation & Pump. 256,334 249,337 279,031 2,066,170 10,662,261 25,082,914 35,595,724 33,586,634 27,313,502 9,755,150 1,689,849 327,292 146,864,197
40 - Unmetered Gen. Serv. 91,382 92,884 93,347 93,797 94,819 95,343 95,767 96,687 97,265 97,597 97,798 97,935 1,144,620
41 - Municipal St. Light. 322,223 307,028 281,372 324,102 298,394 294,907 294,355 293,246 296,254 297,443 300,230 302,219 3,611,772
42 - Traffic Control Light. 14,609 14,687 12,786 14,653 13,608 13,261 13,897 13,782 14,173 13,878 14,259 14,145 167,739
Total All Rates 94,168,228 89,406,833 81,797,327 73,938,303 77,845,138 95,857,649 123,365,850 131,965,128 114,522,933 78,781,757 74,687,769 85,566,828 1,121,903,744
Special Contracts
26 - Micron 2,386,434 2,204,644 2,306,291 2,260,482 2,485,476 2,580,892 2,672,922 2,705,260 2,579,346 2,440,767 2,445,528 2,554,312 29,622,353
29 - J R Simplot 650,728 686,573 683,513 519,784 629,771 614,308 652,906 644,856 640,294 687,922 683,806 664,908 7,759,368
30 - DOE 1,137,466 1,077,733 1,004,219 862,357 752,934 707,700 643,799 633,233 668,101 943,506 986,909 1,129,751 10,547,708
Total Specials 4,174,628 3,968,950 3,994,023 3,642,623 3,868,180 3,902,900 3,969,627 3,983,349 3,887,741 4,072,195 4,116,242 4,348,971 47,929,429
Total Firm Retail Sales 98,342,856 93,375,784 85,791,350 77,580,926 81,713,318 99,760,548 127,335,476 135,948,477 118,410,674 82,853,952 78,804,011 89,915,800 1,169,833,173
12 MONTHS ENDING DECEMBER 31, 2023
Exhibit No. 27
Case No. IPC-E-23-11
J. Brady, IPC
Page 5 of 5
BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION
CASE NO. IPC-E-23-11
IDAHO POWER COMPANY
BRADY, DI
TESTIMONY
EXHIBIT NO. 28
2023 Retail Revenue Forecast Derivation
2023 Test Year Revenue Forecast
Rates
Rate State Jan-23 Feb-23 Mar-23 Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 Total As of 6/1/2022
IDAHO
Rate 01 I Bills 490,124 489,968 489,175 488,869 488,833 490,266 491,169 492,205 492,961 493,490 494,545 496,102 5,897,706 5.000000
Min Bills 4317.0 5209.0 5532.0 6124.0 6327.0 7040.0 6746.0 6992.0 6196.0 6095.0 5680.0 4607.0 70,865 2.000000
S 0-800 3,450 (2,569)301 1,410 (3,970)108,107,252 292,086,075 291,815,097 167,588,620 1,522,590 15,245 14,115 861,147,615 0.086518
S 801-2000 (878) (3,745) (333)0 5 27,007,499 124,606,380 186,550,147 95,258,304 488,793 2,744 1,656 433,910,571 0.104033
S Over 2000 0 (137)0 0 0 3,330,895 19,864,970 40,624,505 19,517,439 73,921 99 (53)83,411,640 0.123585
N 0-800 308,568,702 285,333,690 282,345,964 276,644,799 261,646,571 172,201,397 3,757,357 17,598 106,902,802 278,294,625 275,969,649 273,715,785 2,525,398,940 0.080390
N 801-2000 181,095,731 163,194,665 144,859,882 96,634,360 80,169,435 43,571,175 1,197,932 19,505 49,563,609 68,157,038 95,452,214 153,557,678 1,077,473,224 0.088627
N Over 2000 100,278,583 92,816,662 65,240,244 22,687,748 15,398,753 6,519,763 183,180 5,005 7,897,197 8,834,167 23,420,185 79,512,518 422,794,007 0.098154
Total kWh 589,945,587 541,338,567 492,446,058 395,968,317 357,210,794 360,737,981 441,695,895 519,031,858 446,727,970 357,371,134 394,860,136 506,801,700 5,404,135,997
Rev 53,158,012 48,971,387 44,396,809 35,487,498 32,106,869 33,384,745 43,584,432 52,153,852 43,060,429 31,951,125 35,429,329 45,908,953 499,593,439
Rate 03 I Bills 19 19 19 19 19 19 19 19 19 19 19 19 225 5.000000
Total kWh 488,670 448,386 407,887 327,969 295,883 298,791 365,801 429,850 370,004 296,021 327,035 419,789 4,476,086 0.087075
Rev 42,645 39,137 35,610 28,652 25,858 26,111 31,946 37,523 32,312 25,870 28,570 36,647 390,879
Rate 05 I Bills 991 986 986 986 990 988 986 980 986 985 979 993 11,836 5.000000
Min Bills 2.0 3.0 2.0 2.0 4.0 3.0 2.0 3.0 3.0 1.0 2.0 2.0 29 2.000000
S Peak 0 0 0 0 0 104,680 384,616 494,903 325,893 7,746 0 0 1,317,837 0.128910
S Off Peak 0 0 0 0 0 265,746 925,589 1,073,772 658,873 8,078 0 0 2,932,059 0.073899
N Peak 732,685 712,772 640,067 519,261 474,648 309,961 6,408 0 156,111 488,436 517,770 648,820 5,206,937 0.095159
N Off Peak 1,160,259 998,787 914,432 722,694 665,063 453,521 16,505 0 251,020 641,674 701,153 965,411 7,490,517 0.073899
Total kWh 1,892,943 1,711,559 1,554,498 1,241,955 1,139,711 1,133,908 1,333,117 1,568,675 1,391,896 1,145,934 1,218,922 1,614,231 16,947,350
Rev 160,423 146,570 133,417 107,754 99,275 101,088 124,746 148,054 129,044 100,419 105,983 138,050 1,494,824
Rate 06 I Bills 12,300 12,461 12,646 12,853 12,995 13,158 13,422 13,524 13,716 13,914 14,076 14,388 159,453 5.000000
Min Bills 79.0 104.0 110.0 100.0 116.0 126.0 110.0 141.0 140.0 160.0 164.0 132.0 1482.0 2.000000
S 0-800 0 0 0 0 0 1,633,117 6,215,916 6,648,747 3,699,791 37,932 (112)0 18,235,390 0.086518
S 801-2000 0 0 0 0 0 460,510 2,206,053 2,935,090 1,430,062 10,015 (597)0 7,041,132 0.104033
S Over 2000 0 0 0 0 0 236,234 993,817 1,083,194 523,630 4,007 0 0 2,840,881 0.123585
N 0-800 7,530,201 6,019,882 5,079,746 4,590,719 4,090,000 2,673,835 68,739 0 2,153,947 5,703,638 7,864,629 8,757,924 54,533,261 0.080390
N 801-2000 4,526,918 3,571,126 2,629,146 1,578,140 1,387,124 856,949 24,536 0 664,393 1,337,460 2,731,373 4,828,226 24,135,393 0.088627
N Over 2000 3,793,654 2,864,276 1,711,168 902,479 717,938 459,007 17,243 0 221,789 518,205 1,289,650 3,631,029 16,126,439 0.098154
Total kWh 15,850,773 12,455,285 9,420,060 7,071,338 6,195,062 6,319,652 9,526,304 10,667,031 8,693,613 7,611,257 11,884,942 17,217,179 122,912,496
Rev 1,440,581 1,144,090 872,781 661,961 587,409 620,389 966,836 1,082,351 856,254 702,623 1,071,531 1,560,564 11,567,368
Rate 07 I Bills 30,369 30,320 30,303 30,329 30,210 30,338 30,348 30,406 30,369 30,571 30,572 30,674 364,810 5.000000
Min Bills 162.0 202.0 195.0 169.0 208.0 162.0 197.0 156.0 158.0 164.0 189.0 215.0 2177.0 2.000000
S 0-300 833 (107)329 0 (130)2,127,752 5,445,180 4,994,740 2,930,085 28,578 (649) (126)15,526,486 0.098633
S Over 2,828 (446)0 0 (1,496)1,837,668 6,199,162 7,613,614 4,027,601 (24,690) (14,013) (677)19,639,552 0.117472
N 0-300 5,971,026 5,661,411 5,407,777 5,565,716 5,182,326 3,348,322 79,473 189 1,974,388 5,217,804 5,119,586 5,037,758 48,565,776 0.098633
N Over 8,233,703 8,020,646 6,623,828 4,957,968 4,429,219 2,755,344 91,119 394 2,534,016 4,878,052 5,011,199 7,017,857 54,553,347 0.103486
kWh Total 14,208,391 13,681,505 12,031,934 10,523,684 9,609,919 10,069,086 11,814,934 12,608,938 11,466,089 10,099,744 10,116,124 12,054,812 138,285,160
Rev 1,593,596 1,540,368 1,370,797 1,214,025 1,120,789 1,193,150 1,434,705 1,539,435 1,371,271 1,172,561 1,175,078 1,376,848 16,102,622
Rate 08 I Bills 82 82 84 85 86 88 89 90 90 90 91 93 1,050 5.000000
Min Bills 0.0 0.0 1.0 0.0 0.0 0.0 0.0 1.0 0.0 2.0 1.0 1.0 6.0 2.000000
S 0-300 0 0 0 0 0 3,141 10,048 8,107 5,000 51 0 0 26,347 0.098633
S Over 0 0 0 0 0 1,099 12,643 23,973 18,119 273 0 0 56,107 0.117472
N 0-300 13,968 14,066 13,982 14,138 11,432 5,653 198 0 3,414 8,410 17,319 14,716 117,296 0.098633
N Over 29,086 25,024 17,681 7,146 5,997 4,232 251 0 8,130 13,919 20,810 38,680 170,958 0.103486
kWh Total 43,055 39,090 31,663 21,284 17,429 14,126 23,140 32,081 34,664 22,653 38,129 53,395 370,708
Rev 4,798 4,389 3,629 2,560 2,177 1,874 2,967 4,068 4,248 2,762 4,320 5,921 43,713
Rate 09S I Bills 37473.4 37518.3 37564.4 37635.7 37677.7 37704.6 37761.8 37824 37924.9 37975.7 38108.3 37993.2 453162 16.000000
Min Bills 124.0 155.0 180.0 174.0 138.0 126.0 164.0 132.0 152.0 149.0 158.0 132.0 1784.0 5.000000
BLC 0-20 533,392 544,937 538,010 544,378 549,234 557,323 544,031 540,507 532,412 543,704 531,004 535,180 6,494,112 0.000000
BLC Over 20 701,603 716,918 708,596 715,650 718,451 726,582 703,995 702,706 699,081 706,857 708,711 707,404 8,516,555 1.030000
BLC Total 1,234,995 1,261,854 1,246,605 1,260,028 1,267,685 1,283,905 1,248,027 1,243,213 1,231,494 1,250,562 1,239,715 1,242,584 15,010,667
kW 0-20 424,991 435,973 431,269 436,271 454,035 472,744 459,882 457,592 448,945 457,594 438,929 430,970 5,349,195 0.000000
S kW Over 20 (0)0 0 0 0 202,621 500,914 541,931 313,328 3,161 148 147 1,562,250 6.060000
N kW Over 20 451,304 457,962 455,474 445,971 449,595 285,476 8,568 (0)231,668 515,678 477,424 451,757 4,230,876 4.450000
kW Total 876,295 893,936 886,742 882,243 903,630 960,841 969,363 999,523 993,941 976,432 916,501 882,874 11,142,321
Exhibit No. 28
Case No. IPC-23-11
J. Brady, IPC
Page 1 of 6
2023 Retail Revenue Forecast Derivation
S 0-2000 (1,606)2,071 1,623 2,078 8,323 22,466,910 55,811,628 55,328,169 32,227,680 310,958 20,553 7,311 166,185,698 0.105250
S Over 0 0 0 0 3,727 84,106,752 225,752,868 250,290,708 144,179,468 1,338,931 78,638 5,531 705,756,622 0.048716
N 0-2000 59,089,099 59,939,263 57,030,726 57,220,840 56,660,607 34,394,189 813,745 3,440 22,158,012 55,092,345 55,263,382 57,140,717 514,806,364 0.094742
N Over 233,654,792 233,567,727 216,098,068 196,669,820 193,699,815 120,415,479 3,591,975 89,013 97,361,138 211,025,546 204,963,241 223,659,319 1,934,795,934 0.044196
kWh Total 292,742,285 293,509,062 273,130,416 253,892,738 250,372,471 261,383,329 285,970,217 305,711,331 295,926,298 267,767,780 260,325,814 280,812,878 3,321,544,618
Rev 19,255,806 19,379,168 18,312,689 17,438,189 17,274,189 18,892,979 21,511,585 22,634,444 21,075,381 18,294,341 17,766,240 18,647,900 230,482,910
Rate 09P I Bills 281.4 281.1 279 276.8 280.4 275.7 285.9 279.7 281 280 282.1 278.8 3361.9 285.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.000000
BLC 161,070 157,417 160,006 157,428 159,471 167,508 172,468 165,516 154,215 159,557 159,756 160,908 1,935,320 1.300000
S kW 0 0 0 0 0 0 140,515 142,116 139,062 314 0 (270)421,737 5.160000
N kW 122,555 118,748 121,749 118,891 120,018 132,429 2,223 0 0 140,861 128,829 123,437 1,129,739 4.520000
Total kW 122,555 118,748 121,749 118,891 120,018 132,429 142,738 142,116 139,062 141,174 128,829 123,167 1,551,476
On-peak kW 0 0 0 0 0 0 131,493 133,093 130,008 308 0 (340)394,562 0.970000
S On-peak kWh 0 0 0 0 0 0 14,883,769 14,575,502 15,978,455 44,404 0 (31,571)45,450,558 0.049454
S Mid-peak kWh 0 0 0 0 0 0 22,599,333 25,103,152 23,226,698 65,998 0 (50,568)70,944,613 0.045633
S Off-peak kWh 0 0 0 0 0 0 14,746,043 17,050,278 15,069,765 32,804 0 (34,085)46,864,805 0.043133
N Mid-peak kWh 30,153,518 28,676,698 28,108,718 29,921,611 28,487,696 29,630,158 465,246 0 0 31,735,636 30,680,676 29,080,242 266,940,199 0.040920
N Off-peak kWh 19,478,333 20,284,766 17,345,146 17,328,681 16,657,404 19,744,621 201,903 0 0 19,187,253 18,590,374 19,123,381 167,941,864 0.039546
Total kWh 49,631,851 48,961,464 45,453,864 47,250,292 45,145,100 49,374,779 52,896,294 56,728,933 54,274,918 51,066,095 49,271,050 48,087,399 598,142,039
Rev 2,847,710 2,797,128 2,673,968 2,730,602 2,654,158 2,888,200 3,598,743 3,759,083 3,624,338 2,989,855 2,861,018 2,785,731 36,210,534
Rate 09T I Bills 4 4 4 4 4 4 4 4 4 4 4 4 48 285.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.000000
BLC 1,374 1,288 1,220 1,432 1,490 1,439 1,386 1,339 1,486 1,580 1,501 1,473 17,008 0.690000
S kW 0 0 0 0 0 0 1,176 990 1,044 0 0 0 3,210 4.840000
N kW 1,090 994 946 1,208 1,366 1,377 0 0 0 1,189 1,235 1,269 10,676 4.360000
Total kW 1,090 994 946 1,208 1,366 1,377 1,176 990 1,044 1,189 1,235 1,269 13,886
On-peak kW 0 0 0 0 0 0 1,027 832 891 0 0 0 2,749 0.970000
S On-peak kWh 0 0 0 0 0 0 75,676 54,511 63,328 0 0 0 193,515 0.048664
S Mid-peak kWh 0 0 0 0 0 0 131,543 106,090 112,994 0 0 0 350,627 0.045000
S Off-peak kWh 0 0 0 0 0 0 90,851 71,465 74,079 0 0 0 236,395 0.042585
N Mid-peak kWh 198,448 172,384 157,731 180,772 198,713 187,011 0 0 0 164,046 198,809 203,859 1,661,772 0.040408
N Off-peak kWh 121,409 130,438 110,656 118,127 126,154 137,935 0 0 0 95,780 129,116 145,218 1,114,834 0.039155
Total kWh 319,857 302,822 268,387 298,899 324,867 324,946 298,070 232,066 250,401 259,826 327,925 349,077 3,557,143
Rev 19,615 18,436 16,813 19,323 21,093 21,097 22,257 18,131 19,404 17,795 20,650 21,615 236,229
Rate 19S I Bills 1 1 1 1 1 1 1 1 1 1 1 1 12 39.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0 5.000000
BLC 1,209 1,203 1,176 1,170 1,177 1,213 1,171 1,184 1,188 1,162 1,164 1,150 14,167 0.930000
S kW 0 0 0 0 0 0 1,067 1,086 1,080 0 0 0 3,233 5.990000
N kW 1,142 1,127 1,104 1,135 1,152 1,134 0 0 0 1,058 1,134 1,123 10,109 4.300000
Total kW 1,142 1,127 1,104 1,135 1,152 1,134 1,067 1,086 1,080 1,058 1,134 1,123 13,342
On-peak kW 0 0 0 0 0 0 830 895 866 0 0 0 2,591 1.030000
S On-peak kWh 0 0 0 0 0 26,440 123,837 128,376 145,152 0 0 0 423,806 0.064456
S Mid-peak kWh 0 0 0 0 0 34,980 164,151 181,679 182,469 0 0 0 563,279 0.051034
S Off-peak kWh 0 0 0 0 0 40,473 203,224 218,708 202,568 0 0 0 664,973 0.045292
N Mid-peak kWh 330,465 341,885 314,201 345,614 334,038 237,242 0 0 0 323,206 347,674 319,781 2,894,106 0.047466
N Off-peak kWh 251,857 229,856 197,116 218,695 213,733 180,910 0 0 0 227,468 238,861 229,968 1,988,464 0.042171
Total kWh 582,322 571,741 511,317 564,309 547,771 520,046 491,212 528,763 530,190 550,674 586,535 549,749 6,534,628
Rev 32,382 31,924 29,108 31,633 30,958 30,257 33,936 36,021 36,347 30,601 32,573 30,812 386,553
Rate 19P I Bills 113 113 113 113 113 113 113 113 113 113 113 113 1356 299.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.000000
BLC 431,617 440,148 420,070 427,664 439,780 445,858 437,209 444,833 443,608 434,900 436,890 438,634 5,241,211 1.280000
S kW 0 0 0 0 0 0 391,774 402,402 406,562 0 0 (575)1,200,164 6.120000
N kW 378,684 385,302 367,585 369,769 374,451 380,809 0 0 0 400,556 389,446 387,351 3,433,952 4.540000
Total kW 378,684 385,302 367,585 369,769 374,451 380,809 391,774 402,402 406,562 400,556 389,446 386,777 4,634,116
On-peak kW 0 0 0 0 0 0 376,296 386,737 390,330 0 0 (192)1,153,172 0.970000
S On-peak kWh 0 0 0 0 0 0 51,578,510 48,552,770 55,642,610 0 0 (31,615)155,742,275 0.053049
S Mid-peak kWh 0 0 0 0 0 0 82,749,256 88,978,533 87,097,038 0 0 (47,302)258,777,524 0.042185
S Off-peak kWh 0 0 0 0 0 0 60,965,432 67,102,459 64,250,840 0 0 (30,663)192,288,068 0.037639
N Mid-peak kWh 114,838,401 114,566,530 105,310,222 116,525,935 110,706,610 109,016,493 0 0 0 114,248,901 117,487,542 111,921,373 1,014,622,007 0.039765
N Off-peak kWh 82,051,537 89,613,115 72,966,109 76,921,322 73,779,822 84,008,755 0 0 0 80,340,733 84,112,909 82,071,151 725,865,453 0.035550
Total kWh 196,889,938 204,179,645 178,276,331 193,447,257 184,486,432 193,025,248 195,293,198 204,633,762 206,990,488 194,589,634 201,600,451 193,882,943 2,347,295,327
Rev 9,788,962 10,087,930 9,021,917 9,628,156 9,321,832 9,654,913 11,877,722 12,295,915 12,512,697 9,808,203 10,023,196 9,713,467 123,734,911
Rate 19T I Bills 2 2 2 2 2 2 2 2 2 2 2 2 24 299.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.000000
Exhibit No. 28
Case No. IPC-23-11
J. Brady, IPC
Page 2 of 6
2023 Retail Revenue Forecast Derivation
BLC 5,069 5,130 4,339 4,350 5,393 5,239 4,887 5,131 5,541 5,005 4,679 5,251 60,014 0.710000
S kW 0 0 0 0 0 0 4,757 5,020 5,412 0 0 0 15,188 5.930000
N kW 4,997 5,021 4,246 4,295 5,247 5,088 0 0 0 4,876 4,551 5,134 43,455 4.410000
Total kW 4,997 5,021 4,246 4,295 5,247 5,088 4,757 5,020 5,412 4,876 4,551 5,134 58,643
On-peak kW 0 0 0 0 0 0 4,529 4,722 5,186 0 0 0 14,437 0.970000
S On-peak kWh 0 0 0 0 0 0 641,736 606,088 753,092 0 0 0 2,000,915 0.052447
S Mid-peak kWh 0 0 0 0 0 0 1,150,166 1,244,475 1,309,729 0 0 0 3,704,369 0.041889
S Off-peak kWh 0 0 0 0 0 0 876,461 983,033 978,764 0 0 0 2,838,258 0.037394
N Mid-peak kWh 1,663,670 1,628,866 1,260,363 1,406,203 1,584,213 1,588,199 0 0 0 1,567,059 1,495,850 1,581,008 13,775,429 0.039577
N Off-peak kWh 1,267,336 1,340,499 906,829 975,484 1,157,090 1,313,963 0 0 0 1,198,742 1,139,770 1,246,993 10,546,708 0.035383
Total kWh 2,931,006 2,969,365 2,167,192 2,381,687 2,741,303 2,902,162 2,668,363 2,833,595 3,041,585 2,765,801 2,635,620 2,828,001 32,865,680
Rev 136,919 138,278 104,370 112,798 131,207 136,105 151,278 159,264 172,613 130,087 123,520 133,663 1,630,102
Rate 24 I In Bills 0 0 0 0 0 19327.8 19243 19478.2 19621.3 0 0 0 77,670 22.000000
I Out-Bills 18525 18838.8 18916.6 19284.1 19398 0 0 0 0 19478.4 19081.8 18953.8 152,477 3.500000
Min Bills 39.9 23.9 62.5 71.2 48.7 22.3 -0.3 0.0 6.9 34.6 44.7 24.3 379 1.500000
In-kW 1,007,972 1,080,974 1,018,561 957,920 4,065,427 7.060000
Out-kW 0 0 0 0 - 0.000000
Total kW 1,007,972 1,080,974 1,018,561 957,920 4,065,427
In <164 kWh per k (451) (19,150)0 0 30,276 157,613,372 167,416,604 153,196,402 132,009,262 433,728 7,163 91,152 610,778,359 0.058436
In >164 kWh per k 0 (52,764)0 0 0 129,813,328 290,438,380 282,136,227 194,707,635 449,476 0 256,153 897,748,435 0.055483
Out-kWh 2,605,766 2,575,541 2,950,218 28,547,278 151,846,820 661,503 (257,707) (5,393,540)5,555,976 139,914,453 23,656,636 3,333,035 355,995,978 0.067084
Total kWh 2,605,316 2,503,627 2,950,218 28,547,278 151,877,097 288,088,203 457,597,276 429,939,089 332,272,872 140,797,657 23,663,799 3,680,340 1,864,522,772
Rev 239,676 234,703 264,214 1,982,667 10,256,227 23,998,633 33,935,281 31,863,690 26,084,365 9,504,531 1,654,254 309,507 140,327,749
Rate 40 I In Bills 1663 1663 1663 1663 1663 1663 1663 1663 1663 1663 1663 1663 19956 0.000000
Min Bills 70.6 68.8 68.9 70.8 71.5 71.8 67.9 70.9 71.9 72.6 70.9 70.3 846.8 1.500000
kWh 1,111,671 1,129,997 1,135,643 1,141,087 1,153,527 1,159,902 1,165,140 1,176,306 1,183,323 1,187,351 1,189,839 1,191,515 13,925,301 0.082070
Intermittent Usag 14 14 14 14 14 14 14 14 14 14 14 14 168 1.000000
Rev 91,355 92,856 93,320 93,769 94,791 95,315 95,739 96,660 97,237 97,569 97,770 97,907 1,144,288
Rate 42 I Bills 766 766 766 766 766 766 766 766 766 766 766 766 9192 0.000000
kWh 247,623 249,052 216,602 249,052 231,141 225,244 235,982 234,167 240,982 235,926 242,437 239,753 2,847,961 0.058150
Rev 14,399 14,482 12,595 14,482 13,441 13,098 13,722 13,617 14,013 13,719 14,098 13,942 165,609
Rate 15 1csa 7,515 7,518 7,512 7,495 7,503 7,493 7,470 7,455 7,430 7,438 7,439 7,446 89,714 9.630000
2csa 769 772 776 774 790 790 795 791 802 789 797 813 9,459 11.500000
2cs 808 812 807 814 794 793 794 795 794 795 798 796 9,599 13.780000
4ch 105 104 104 104 100 99 95 92 92 90 90 89 1,164 14.910000
4csa 139 141 151 152 157 157 151 153 152 150 149 149 1,801 15.570000
4cs 440 447 445 446 445 447 453 450 454 452 456 453 5,387 16.240000
1kh 71 79 79 80 80 80 81 80 81 82 83 80 956 23.710000
Min Bill 34.2 30.8 34.4 35.7 31.8 37.6 42.6 36.2 38.2 39.1 34.3 38.8 433.8 3.000000
kWh 467,630 460,083 454,542 448,316 445,066 440,449 434,588 434,010 429,419 424,087 418,486 410,747 5,267,423
Rev 105,010 105,442 105,482 105,457 105,447 105,364 105,178 104,885 104,876 104,726 104,945 105,041 1,261,853
Rate 41A I
70 S 36 36 36 36 36 36 36 36 36 36 35 36 431 11.550000
100 S 15,573 14,950 13,395 16,513 14,949 14,952 14,957 14,804 14,963 14,992 14,994 15,005 180,046 11.010000
200 S 1,793 1,667 1,565 1,765 1,668 1,670 1,671 1,642 1,671 1,674 1,675 1,676 20,137 14.750000
250 S 240 238 233 246 238 228 227 228 230 231 230 230 2,799 16.050000
400 S 119 120 100 144 122 125 126 126 126 126 126 126 1,486 18.300000
41A Variable Usag 3,624 3,624 3,624 3,624 3,624 3,624 3,624 3,402 3,624 3,624 3,624 3,624 43,270 0.074640
41A kWh 431,570 391,271 341,515 413,338 356,774 341,204 342,933 334,813 319,578 302,319 295,621 282,208 4,153,143
Rev 41A 204,616 195,894 176,821 215,113 195,931 195,888 195,955 193,847 196,074 196,453 196,460 196,597 2,359,648
All Rate 41 Bills 2,980 2,980 2,980 2,980 2,980 2,980 2,980 2,980 2,980 2,980 2,980 2,980 35,760
All Rate 41 kWh 2,294,057 2,126,315 1,939,585 2,126,315 1,927,140 1,868,190 1,866,664 1,879,169 1,904,924 1,904,924 1,951,450 1,971,281 23,760,014
Rev All 41 309,637 294,498 268,883 311,728 286,073 282,636 282,155 281,011 283,919 285,135 287,859 289,786 3,463,322
Rate 41B 29 70 S 0 0 0 0 0 0 0 0 0 0 0 0 0 3.110000
39 100 S 3,219 3,092 3,008 2,976 2,957 2,060 1,917 1,913 675 661 661 660 23,799 3.480000
74 200 S 148 127 120 120 117 113 110 110 68 65 64 64 1,226 5.030000
100 250 S 858 832 826 813 794 749 674 649 574 433 419 418 8,039 6.200000
157 400 S 127 127 127 125 123 121 122 120 70 70 57 56 1,245 8.760000
Variable Usage Ch 0 0 0 0 0 0 0 0 0 0 0 0 0 0.074640
kwh 273,073 256,567 239,127 263,502 241,734 198,240 187,222 185,109 108,196 90,770 86,911 84,537 2,214,987
Rev 41B 18,379 17,670 17,305 17,096 16,879 13,441 12,472 12,286 6,863 5,925 5,719 5,701 149,735
Out of Season - No Impact Out of Season - No Impact
Exhibit No. 28
Case No. IPC-23-11
J. Brady, IPC
Page 3 of 6
2023 Retail Revenue Forecast Derivation
Rate 41BM 100 S 0 0 0 0 0 0 0 0 0 0 0 0 0 1.280000
200 S 0 0 0 0 0 0 0 0 0 0 0 0 0 1.270000
250 S 33 33 33 33 33 33 33 33 33 33 33 33 396 1.370000
400 S 0 0 0 0 0 0 0 0 0 0 0 0 0 1.370000
Bills 6 6 6 6 6 7 4 4 4 4 4 4 61 3.360000
kWh 10,274 8,601 7,518 7,717 6,344 5,846 5,160 4,299 4,997 5,114 5,893 6,340 78,103 0.051250
Rev 41BM 592 506 451 461 390 368 323 279 315 321 361 384 4,750
Rate 41C kWh 857,989 844,827 805,767 903,470 845,378 873,468 896,048 892,087 951,296 951,591 951,646 930,670 10,704,238 0.052400
Rev 41C 44,959 44,269 42,222 47,342 44,298 45,770 46,953 46,745 49,848 49,863 49,866 48,767 560,902
Rate 41CM I Bills 1230 1228 1226 1229 1230 1231 1233 1230 1228 1227 1226 1228 14746 3.360000
kWh 721,151 625,049 545,658 538,287 476,911 449,432 435,301 462,861 520,856 555,130 611,379 667,526 6,609,543 0.051250
Rev 41CM 41,092 36,160 32,084 31,717 28,574 27,170 26,452 27,854 30,820 32,573 35,453 38,337 388,286
Rates
OREGON Jan-23 Feb-23 Mar-23 Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 As of 06/1/2022
Rate 01 O Bills 13685.1 13717.1 13686.7 13632.1 13646.2 13682.1 13672.5 13633.4 13699.2 13728.9 13709.3 13750.3 164,243 8.000000
Min Bills 124.0 110.0 100.0 110.0 147.0 139.0 104.0 187.0 146.0 126.0 125.0 100.0 1,518 3.000000
0-1000 11,805,082 11,021,784 10,419,412 11,083,899 8,991,286 9,097,914 10,065,869 9,009,830 8,942,630 8,970,207 10,121,329 9,934,042 119,463,283 0.079919
Over 1000 12,726,917 11,253,020 8,526,271 4,066,509 3,069,297 1,978,853 3,614,255 5,614,894 4,416,336 1,720,009 4,065,347 10,009,519 71,061,228 0.094099
Total kWh 24,531,999 22,274,803 18,945,683 15,150,408 12,060,582 11,076,767 13,680,124 14,624,725 13,358,966 10,690,217 14,186,675 19,943,561 190,524,510
Rev 2,250,893 2,049,815 1,744,816 1,377,855 1,117,003 1,023,178 1,254,244 1,358,041 1,240,290 988,950 1,301,481 1,846,107 17,552,674
Rate 05 O Bills 4 4 4 4 4 4 4 4 3 4 4 4 47 8.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.000000
S Peak 0 0 0 0 0 492 1,399 1,582 947 0 0 0 4,420 0.122949
S Off Peak 0 0 0 0 0 1,535 4,629 4,486 2,569 0 0 0 13,220 0.121709
N Peak 3,106 3,134 2,339 1,751 1,480 690 0 0 511 1,635 2,185 3,115 19,947 0.075445
N Off Peak 11,220 10,268 7,219 5,567 4,519 2,416 0 0 1,560 4,160 6,184 9,343 62,457 0.074486
Total kWh 14,326 13,402 9,558 7,318 6,000 5,133 6,028 6,068 5,587 5,795 8,369 12,459 100,043
Rev 1,102 1,033 746 579 480 511 767 772 609 465 657 963 8,687
Rate 07 O 1 phase 2,306.6 2,304.0 2,321.9 2,305.9 2,299.4 2,297.5 2,245.4 2,271.5 2,299.2 2,289.9 2,301.2 2,345.6 27,588.1 9.250000
3 phase 410.9 402.9 409.1 403.6 404.6 402.0 391.8 404.0 404.1 393.5 402.0 406.1 4,834.6 17.650000
Total Bills 2,717.5 2,706.9 2,731.0 2,709.5 2,704.0 2,699.5 2,637.2 2,675.5 2,703.3 2,683.4 2,703.2 2,751.7 32,422.7
Min Bills 11.0 14.0 8.0 14.0 8.0 6.0 11.0 7.0 13.0 6.0 12.0 11.0 121.0 3.000000
S 0-500 0 0 0 0 0 284,043 787,364 620,507 364,158 (1,031)1,022 (1)2,056,063 0.079527
S Over 0 0 0 0 0 208,282 851,275 982,560 521,035 (616)0 0 2,562,537 0.104633
N 0-500 795,997 791,377 758,982 798,938 732,291 486,903 4,011 0 227,958 616,801 691,633 671,988 6,576,879 0.079527
N Over 1,378,998 1,323,893 1,091,528 722,636 607,435 372,266 17,653 0 312,712 593,993 739,662 1,131,717 8,292,494 0.087337
Total kWh 2,174,996 2,115,269 1,850,510 1,521,574 1,339,725 1,351,495 1,660,302 1,603,067 1,425,864 1,209,148 1,432,317 1,803,704 19,487,972
Rev 212,363 207,026 184,413 155,145 139,723 143,982 181,267 180,318 157,357 128,929 148,102 181,179 2,019,803
Rate 09S O 1 phase 461.1 459.6 446.7 462.1 463.4 471.1 502.5 489.9 482.3 488.0 490.1 467.9 5,684.6 10.250000
3 phase 468.1 477.5 462.3 458.7 456.8 458.4 487.2 471.6 472.0 474.0 471.0 463.2 5,620.9 17.350000
Total Bills 929.2 937.1 909.0 920.8 920.2 929.5 989.7 961.5 954.3 962.0 961.1 931.1 11,305.5
Min Bills 1.0 1.0 4.0 3.0 12.0 3.0 2.0 1.0 1.0 6.0 6.0 7.0 47.0 5.000000
BLC 43,425 44,738 44,551 45,068 44,171 43,499 44,144 44,093 45,256 45,894 47,257 43,560 535,657 0.730000
S kW 0 0 0 0 0 10,040 28,261 30,291 19,693 (33)35 (0)88,287 5.900000
N kW 33,137 33,768 32,940 31,310 28,978 17,750 0 0 11,646 33,774 36,519 33,467 293,291 4.440000
Total kW 33,137 33,768 32,940 31,310 28,978 27,790 28,261 30,291 31,339 33,741 36,554 33,467 381,578
S kWh 0 0 0 0 0 2,711,961 8,177,460 8,866,446 5,832,743 (5,824)6,714 0 25,589,500 0.059716
N kWh 12,167,822 11,921,529 10,646,215 9,029,379 8,123,248 4,898,418 0 0 3,317,360 9,857,424 11,845,606 11,581,726 93,388,728 0.055631
Total kWh 12,167,822 11,921,529 10,646,215 9,029,379 8,123,248 7,610,380 8,177,460 8,866,446 9,150,102 9,851,600 11,852,320 11,581,726 118,978,228
Rev 868,590 858,798 783,657 686,941 625,549 617,050 700,902 753,584 746,930 744,550 869,457 837,561 9,093,570
Rate 09P O Bills 6 6 6 6 6 6 6 6 6 6 5.1 6 71.1 202.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.000000
BLC 3,292 3,129 3,200 3,305 3,263 3,578 3,724 3,556 3,110 3,300 3,195 3,117 39,767 1.230000
S kW 0 0 0 0 0 0 2,914 2,970 2,743 0 0 0 8,628 5.830000
N kW 2,537 2,500 2,573 2,663 2,444 2,649 0 0 0 2,643 2,466 2,398 22,872 4.760000
Total kW 2,537 2,500 2,573 2,663 2,444 2,649 2,914 2,970 2,743 2,643 2,466 2,398 31,500
On-Peak kW 0 0 0 0 0 0 2,829 2,819 2,673 0 0 0 8,321 0.860000
S On-Peak kWh 0 0 0 0 0 0 326,735 334,447 344,365 0 0 0 1,005,547 0.058938
S Mid-Peak kWh 0 0 0 0 0 0 499,469 567,414 500,399 0 0 0 1,567,282 0.055790
S Off-Peak kWh 0 0 0 0 0 0 340,090 398,245 339,222 0 0 0 1,077,558 0.053767
NS Mid-Peak kWh 726,574 714,080 698,035 697,480 627,840 641,448 0 0 0 674,934 666,585 655,921 6,102,898 0.051464
Exhibit No. 28
Case No. IPC-23-11
J. Brady, IPC
Page 4 of 6
2023 Retail Revenue Forecast Derivation
NS Off-Peak kWh 487,832 509,834 434,984 416,069 371,217 424,821 0 0 0 407,755 402,374 455,902 3,910,787 0.050170
Total kWh 1,214,406 1,223,914 1,133,019 1,113,549 999,057 1,066,269 1,166,294 1,300,106 1,183,987 1,082,689 1,068,959 1,111,823 13,664,072
Rev 79,203 79,288 75,140 74,720 67,796 72,545 90,624 98,107 89,781 73,042 71,190 73,091 944,527
Rate 09T O Bills 1 1 1 1 1 1 1 1 1 1 1 1 12 200.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.000000
BLC 933 947 944 987 899 908 925 1,052 911 904 915 873 11,198 0.320000
S kW 0 0 0 0 0 0 741 824 687 0 0 0 2,251 3.790000
N kW 947 913 884 932 819 751 0 0 0 699 778 813 7,535 4.060000
Total kW 947 913 884 932 819 751 741 824 687 699 778 813 9,786
On-Peak kW 0 0 0 0 0 0 614 735 663 0 0 0 2,011 0.730000
S On-Peak kWh 0 0 0 0 0 0 54,114 54,166 53,242 0 0 0 161,522 0.052528
S Mid-Peak kWh 0 0 0 0 0 0 96,716 107,628 89,124 0 0 0 293,468 0.049680
S Off-Peak kWh 0 0 0 0 0 0 55,349 63,419 52,783 0 0 0 171,551 0.047818
NS Mid-Peak kWh 225,142 197,694 181,329 191,014 153,987 130,089 0 0 0 118,553 152,002 171,202 1,521,012 0.045607
NS Off-Peak kWh 143,453 149,977 120,348 131,362 102,227 99,181 0 0 0 81,782 100,980 122,129 1,051,439 0.044419
Total kWh 368,595 347,671 301,677 322,376 256,214 229,270 206,179 225,213 195,149 200,335 252,982 293,331 3,198,992
Rev 20,984 19,888 17,705 18,845 15,375 13,880 14,046 15,419 13,326 12,368 15,069 17,011 193,916
Rate 19P O Bills 6 6 6 6 6 6 6 6 6 6 6 6 72 208.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.000000
BLC 28,974 28,897 26,724 29,031 27,599 27,112 27,706 27,196 28,813 25,110 26,362 26,687 330,209 1.230000
S kW 0 0 0 0 0 0 27,061 26,329 27,937 0 0 0 81,327 5.910000
N kW 26,280 25,949 23,825 26,268 24,629 25,094 0 0 0 23,808 24,374 24,266 224,491 4.780000
Total kW 26,280 25,949 23,825 26,268 24,629 25,094 27,061 26,329 27,937 23,808 24,374 24,266 305,817
On-peak kW 0 0 0 0 0 0 26,542 26,024 27,541 0 0 0 80,107 0.870000
S On-peak kWh 0 0 0 0 0 0 3,966,893 3,371,688 3,987,154 0 0 0 11,325,735 0.061492
S Mid-peak kWh 0 0 0 0 0 0 6,505,304 6,348,380 6,591,910 0 0 0 19,445,593 0.050557
S Off-peak kWh 0 0 0 0 0 0 5,014,885 4,861,372 5,033,281 0 0 0 14,909,538 0.045836
N Mid-peak kWh 7,900,619 7,902,970 7,687,376 9,127,779 8,336,070 8,163,090 0 0 0 7,444,844 7,953,759 7,609,396 72,125,903 0.048407
N Off-peak kWh 5,827,819 6,059,143 5,401,697 6,300,377 5,815,072 6,070,089 0 0 0 5,713,831 6,030,953 5,559,697 52,778,678 0.044753
Total kWh 13,728,438 13,962,113 13,089,073 15,428,156 14,151,142 14,233,179 15,487,082 14,581,440 15,612,344 13,158,675 13,984,712 13,169,093 170,585,447
Rev 805,762 814,550 761,864 886,325 816,688 821,349 1,021,029 964,055 1,034,910 762,027 805,100 767,224 10,260,882
Rate 19T O Bills 1 1 1 1 1 1 1 1 1 1 1 1 12 215.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 10.000000
BLC 17,180 16,375 21,675 19,489 14,563 16,699 16,446 16,337 13,417 16,708 17,158 16,524 202,572 0.330000
S kW 0 0 0 0 0 0 15,316 15,064 12,579 0 0 0 42,959 4.920000
N kW 16,912 13,835 21,043 18,892 13,931 15,540 0 0 0 15,412 16,557 16,220 148,343 4.640000
Total kW 16,912 13,835 21,043 18,892 13,931 15,540 15,316 15,064 12,579 15,412 16,557 16,220 191,302
On-peak kW 0 0 0 0 0 0 15,180 15,064 12,555 0 0 0 42,799 0.950000
S On-peak kWh 0 0 0 0 0 0 2,401,845 2,105,233 1,893,425 0 0 0 6,400,503 0.064184
S Mid-peak kWh 0 0 0 0 0 0 4,237,881 4,091,573 3,278,347 0 0 0 11,607,801 0.053947
S Off-peak kWh 0 0 0 0 0 0 3,429,444 3,486,826 2,697,651 0 0 0 9,613,921 0.049504
N Mid-peak kWh 6,439,972 2,520,221 4,268,261 6,406,036 4,883,604 5,674,612 0 0 0 5,277,519 5,825,032 5,884,811 47,180,068 0.051774
N Off-peak kWh 4,788,311 2,047,787 3,104,489 4,872,626 3,737,445 5,001,627 0 0 0 4,486,881 4,846,995 5,011,252 37,897,413 0.048356
Total kWh 11,228,283 4,568,008 7,372,750 11,278,662 8,621,049 10,676,239 10,069,171 9,683,632 7,869,423 9,764,400 10,672,027 10,896,063 112,699,707
Rev 649,323 299,320 476,115 661,593 503,234 613,486 647,969 622,494 510,390 567,447 618,667 627,932 6,797,970
Rate 24S O In Bills 0 0 0 0 0 2241.2 2245.3 2244.1 2293.7 0 0 0 9,024 16.850000
Out-Bills 2093.8 2130.5 2131.9 2214 2269 0 0 0 0 2245.6 2226.1 2201.3 17,512 3.000000
Min Bills 18.6 18.2 50.8 55.5 37.7 6.8 0.1 0.5 0.6 3.1 13.4 16.1 221 3.000000
In-kW 38,747 45,409 44,353 38,265 166,774 7.760000
Out-kW 0 0 0 0 - 0.000000
Total kW 38,747 45,409 44,353 38,265 166,774
In <164 kWh per k 466 0 0 0 15,958 5,935,980 7,838,390 6,578,801 5,243,274 0 0 0 25,612,869 0.075272
In >164 kWh per k 0 0 0 0 677 4,169,982 9,487,053 11,795,714 6,957,878 0 0 0 32,411,305 0.071700
Out-kWh 131,672 104,821 105,851 981,833 5,093,369 255 0 0 0 3,122,012 369,673 142,517 10,052,004 0.078114
Total kWh 132,138 104,821 105,851 981,833 5,110,005 10,106,217 17,325,443 18,374,515 12,201,152 3,122,012 369,673 142,517 68,076,178
Rev 16,658 14,634 14,817 83,503 406,033 1,084,281 1,660,443 1,722,943 1,229,137 250,619 35,595 17,785 6,536,448
Rate 40 O In Bills 2 2 2 2 2 2 2 2 2 2 2 2 24 0.000000
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.500000
kWh 449 449 449 449 449 449 449 449 449 449 449 449 5,388 0.061730
Rev 28 28 28 28 28 28 28 28 28 28 28 28 333
Rate 42 O In Bills 10 10 10 10 10 10 10 10 10 10 10 10 120 0.000000
kWh 2,129 2,077 1,931 1,735 1,699 1,655 1,767 1,671 1,626 1,607 1,636 2,065 21,598 0.098630
Rev 210 205 190 171 168 163 174 165 160 158 161 204 2,130
Out of Season - No Impact Out of Season - No Impact
Exhibit No. 28
Case No. IPC-23-11
J. Brady, IPC
Page 5 of 6
2023 Retail Revenue Forecast Derivation
Rate 15 1csa 673 666 668 672 669 671 667 670 668 672 671 670 8,039 10.880000
2csa 66 66 65 65 65 65 65 65 65 64 64 64 779 12.920000
2cs 22 22 22 22 22 22 22 22 22 22 23 23 266 15.510000
4csa 17 17 17 17 17 17 17 17 17 17 17 17 204 17.470000
4cs 10 10 10 10 10 10 10 10 10 9 9 9 117 18.270000
Min Bill 1.0 3.6 1.4 2.9 2.3 2.4 2.0 2.0 2.7 2.0 4.0 6.3 32.6 3.000000
kWh 35,752 35,570 35,671 35,572 35,449 35,440 35,422 35,652 35,547 34,887 35,063 34,667 424,692
Rev 9,000 8,934 8,944 8,970 8,949 8,972 8,927 8,961 8,933 8,944 8,958 8,960 107,451
Rate 41A O
100 S 832 831 831 831 831 831 831 831 830 830 830 830 9,969 9.320000
200 S 171 171 169 169 169 169 169 169 170 170 169 169 2,034 12.270000
250 S 20 20 22 22 22 22 22 22 22 22 22 22 260 13.330000
400 S 83 83 83 83 83 83 83 83 83 83 83 83 996 15.120000
41A kWh 53,883 48,976 43,454 44,506 43,694 43,404 45,345 43,717 43,365 39,906 38,606 32,430 521,285
Rev 41A 11,374 11,365 11,367 11,367 11,367 11,367 11,367 11,367 11,370 11,370 11,357 11,357 136,394
All 41 Bills 26 26 26 26 26 26 26 26 26 26 26 26 312
Total All 41 kWh 77,020 71,324 64,965 63,849 61,986 60,696 61,332 60,365 61,811 57,781 57,932 52,830 751,891
Rev All 41 12,585 12,530 12,489 12,374 12,321 12,270 12,200 12,235 12,334 12,307 12,371 12,433 148,451
Rate 41B 155 400 M 0 0 0 0 0 0 0 0 0 0 0 0 0 0.000000
39 100S 5 5 5 5 5 5 5 5 4 4 4 4 56 3.320000
74 200 S 5 5 5 5 5 5 5 5 3 3 3 3 52 4.550000
100 250 S 1 1 1 1 1 1 1 1 1 1 1 1 12 5.480000
157 400 S 1 1 1 1 1 1 1 1 1 1 1 1 12 7.510000
kWh 1,232 1,341 1,347 1,411 1,388 1,382 1,447 1,397 1,080 1,035 1,013 867 14,940
Rev 41B 52 52 52 52 52 52 52 52 40 40 40 40 578
Rate 41C O kWh 405 440 442 463 456 454 475 459 660 715 701 599 6,270 0.05133
Rev 41C 21 23 23 24 23 23 24 24 34 37 36 31 322
Rate 41CM O Bills 12 12 12 12 12 12 12 12 12 12 12 12 142 2.88
kWh 21,501 20,567 19,722 17,469 16,448 15,456 14,064 14,792 16,706 16,124 17,612 18,935 209,395 0.05133
Rev 41CM 1,138 1,090 1,047 931 879 828 756 793 891 861 937 1,005 11,157
SPECIAL CONTRACTS Jan-23 Feb-23 Mar-23 Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 As of 6/1/2022
Rate 26 Micron Bills 1 1 1 1 1 1 1 1 1 1 1 1 12
Contract kW 69,000 69,000 69,000 79,000 79,000 79,000 79,000 79,000 79,000 79,000 79,000 79,000 918,000 1.67
kW 75,602 75,994 78,177 80,421 89,224 94,876 96,812 96,545 90,833 80,808 78,389 80,063 1,017,744 10.98
kWh IPC 50,869,270 44,096,520 46,571,000 43,288,600 47,665,490 48,805,200 51,267,950 52,625,260 50,585,100 49,801,240 51,220,700 54,548,210 591,344,540 0.028150
kWh PPA 3,466,730 5,198,480 8,246,000 10,241,400 12,189,510 12,673,800 13,223,050 12,106,740 9,915,900 7,469,760 4,188,300 2,947,790 101,867,460
kWh PPA Embedd 0 0 0 0 0 0 0 0 0 0 0 0 0 0.002632
Excess Generation 0 0 0 0 0 0 0 0 0 0 0 0 0
Capacity Credit 0 0 0 0 0 0 0 0 0 0 0 0 0
Rev IPC 2,377,310 2,190,961 2,284,587 2,233,527 2,453,393 2,547,535 2,638,119 2,673,395 2,553,247 2,421,107 2,434,504 2,546,554 29,354,238
Rev PPA Fixed 9,124 13,682 21,703 26,955 32,083 33,357 34,803 31,865 26,099 19,660 11,024 7,759 268,115
Rev PPA Excess Ge 0 0 0 0 0 0 0 0 0 0 0 0 0
Rev PPA Capacity 0 0 0 0 0 0 0 0 0 0 0 0 0
Total Rev 2,386,434 2,204,644 2,306,291 2,260,482 2,485,476 2,580,892 2,672,922 2,705,260 2,579,346 2,440,767 2,445,528 2,554,312 29,622,353
Rate 29 Simplot Bills 1 1 1 1 1 1 1 1 1 1 1 1 12
Contract kW 25,000 25,000 25,000 25,000 25,000 25,000 25,000 25,000 25,000 25,000 25,000 25,000 300,000 2.31
kW 23,000 22,757 22,589 22,648 21,678 21,552 22,620 22,332 21,170 21,488 22,601 22,823 267,258 7.88
kWh 14,525,952 15,858,114 15,796,851 10,004,150 14,154,104 13,643,597 14,708,422 14,504,488 14,666,594 16,258,484 15,803,836 15,075,409 175,000,001 0.028345
Rev 650,728 686,573 683,513 519,784 629,771 614,308 652,906 644,856 640,294 687,922 683,806 664,908 7,759,368
Rate 30 DOE Bills 1 1 1 1 1 1 1 1 1 1 1 1 12
Contract kW 44,343 44,306 40,900 36,094 30,910 28,035 24,362 24,517 26,522 38,301 38,514 45,882 422,686 8.5
kWh 25,600,000 23,600,000 22,100,000 18,700,000 16,500,000 15,800,000 14,700,000 14,300,000 14,900,000 20,800,000 22,200,000 24,900,000 234,100,000 0.029709
Rev 1,137,466 1,077,733 1,004,219 862,357 752,934 707,700 643,799 633,233 668,101 943,506 986,909 1,129,751 10,547,708
Exhibit No. 28
Case No. IPC-23-11
J. Brady, IPC
Page 6 of 6
BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION
CASE NO. IPC-E-23-11
IDAHO POWER COMPANY
BRADY, DI
TESTIMONY
EXHIBIT NO. 29
2023 Proposed Billing Determinants
Rate State Jan-23 Feb-23 Mar-23 Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 Total
IDAHO
Rate 01 I Bills 490,124 489,968 489,175 488,869 488,833 490,266 491,169 492,205 492,961 493,490 494,545 496,102 5,897,706
Min Bills 4317.0 5209.0 5532.0 6124.0 6327.0 7040.0 6746.0 6992.0 6196.0 6095.0 5680.0 4607.0 70,865
S 0-800 0 0 0 0 0 107,705,737 291,989,525 291,836,540 274,547,850 165,245,533 1,339,673 0 1,132,664,858
S 801-2000 0 0 0 0 0 26,992,602 124,621,446 186,566,162 144,752,733 42,838,290 307,424 0 526,078,657
S Over 2000 0 0 0 0 0 3,317,782 19,892,419 40,629,156 27,427,387 5,887,679 52,441 0 97,206,864
N 0-800 308,603,018 285,279,810 282,368,836 276,613,660 261,630,242 172,597,029 3,801,286 0 0 114,611,674 274,630,797 273,741,005 2,253,877,358
N 801-2000 181,074,217 163,221,926 144,830,325 96,638,421 80,154,063 43,601,180 1,199,924 0 0 25,787,003 95,143,097 153,536,687 985,186,843
N Over 2000 100,268,352 92,836,831 65,246,897 22,716,236 15,426,489 6,523,651 191,294 0 0 3,000,955 23,386,704 79,524,007 409,121,417
Total kWh 589,945,587 541,338,567 492,446,058 395,968,317 357,210,794 360,737,981 441,695,895 519,031,858 446,727,970 357,371,134 394,860,136 506,801,700 5,404,135,997
Rate 03 I Bills 19 19 19 19 19 19 19 19 19 19 19 19 225
Total kWh 488,670 448,386 407,887 327,969 295,883 298,791 365,801 429,850 370,004 296,021 327,035 419,789 4,476,086
Rate 05 I Bills 991 986 986 986 990 988 986 980 986 985 979 993 11,836
Min Bills 2.0 3.0 2.0 2.0 4.0 3.0 2.0 3.0 3.0 1.0 2.0 2.0 29
S Peak 0 0 0 0 0 73,623 244,425 297,960 254,108 128,468 1,219 0 999,802
S Off Peak 0 0 0 0 0 326,158 1,068,942 1,270,715 1,137,789 601,957 4,874 0 4,410,435
N Peak 353,659 345,296 316,405 250,974 229,201 139,106 2,441 0 0 82,674 245,279 314,792 2,279,827
N Off Peak 1,539,285 1,366,262 1,238,094 990,981 910,510 595,021 17,308 0 0 332,836 967,550 1,299,438 9,257,286
Total kWh 1,892,943 1,711,559 1,554,498 1,241,955 1,139,711 1,133,908 1,333,117 1,568,675 1,391,896 1,145,934 1,218,922 1,614,231 16,947,350
Rate 06 I Bills 12,300 12,461 12,646 12,853 12,995 13,158 13,422 13,524 13,716 13,914 14,076 14,388 159,453
Min Bills 79.0 104.0 110.0 100.0 116.0 126.0 110.0 141.0 140.0 160.0 164.0 132.0 1,482
S 0-800 0 0 0 0 0 2,051,568 7,084,721 6,998,160 6,060,077 3,605,974 36,437 0 25,836,936
S 801-2000 0 0 0 0 0 336,577 1,840,392 2,937,785 2,105,840 712,107 7,711 0 7,940,411
S Over 2000 0 0 0 0 0 101,560 490,603 731,086 527,696 178,508 3,527 0 2,032,980
N 0-800 7,566,814 6,218,974 5,398,532 5,075,688 4,673,904 3,057,927 83,552 0 0 2,570,480 8,189,198 8,880,983 51,716,052
N 801-2000 4,570,064 3,514,475 2,546,593 1,438,269 1,135,857 575,237 18,685 0 0 443,790 2,686,331 4,896,001 21,825,301
N Over 2000 3,713,895 2,721,836 1,474,936 557,381 385,301 196,784 8,351 0 0 100,399 961,738 3,440,195 13,560,815
Total kWh 15,850,773 12,455,285 9,420,060 7,071,338 6,195,062 6,319,652 9,526,304 10,667,031 8,693,613 7,611,257 11,884,942 17,217,179 122,912,496
Rate 07 I Bills 30,369 30,320 30,303 30,329 30,210 30,338 30,348 30,406 30,369 30,571 30,572 30,674 364,810
Min Bills 162.0 202.0 195.0 169.0 208.0 162.0 197.0 156.0 158.0 164.0 189.0 215.0 2,177
S 0-300 0 0 0 0 0 2,117,834 5,448,832 4,985,729 4,869,976 3,001,748 24,600 0 20,448,718
S Over 0 0 0 0 0 1,824,743 6,201,802 7,623,209 6,596,113 2,888,691 20,601 0 25,155,159
N 0-300 5,973,181 5,636,154 5,389,761 5,564,306 5,193,310 3,345,939 80,908 0 0 2,190,665 5,077,315 5,011,164 43,462,704
N Over 8,235,210 8,045,351 6,642,173 4,959,378 4,416,609 2,780,570 83,392 0 0 2,018,639 4,993,608 7,043,648 49,218,578
Total kWh 14,208,391 13,681,505 12,031,934 10,523,684 9,609,919 10,069,086 11,814,934 12,608,938 11,466,089 10,099,744 10,116,124 12,054,812 138,285,160
Rate 08 I Bills 82 82 84 85 86 88 89 90 90 90 91 93 1,050
Min Bills 0.0 0.0 1.0 0.0 0.0 0.0 0.0 1.0 0.0 2.0 1.0 1.0 6
S 0-300 0 0 0 0 0 3,172 10,788 9,995 10,666 6,454 57 0 41,132
S Over 0 0 0 0 0 1,748 12,069 22,086 23,998 8,878 169 0 68,948
N 0-300 14,137 14,187 13,145 12,700 9,982 5,859 152 0 0 3,925 16,377 14,611 105,075
N Over 28,918 24,904 18,518 8,584 7,447 3,346 131 0 0 3,395 21,525 38,785 155,553
Total kWh 43,055 39,090 31,663 21,284 17,429 14,126 23,140 32,081 34,664 22,653 38,129 53,395 370,708
Rate 09S I Bills 37473.4 37518.3 37564.4 37635.7 37677.7 37704.6 37761.8 37824 37924.9 37975.7 38108.3 37993.2 453,162
Min Bills 124.0 155.0 180.0 174.0 138.0 126.0 164.0 132.0 152.0 149.0 158.0 132.0 1,784
BLC 1,234,995 1,261,854 1,246,605 1,260,028 1,267,685 1,283,905 1,248,027 1,243,213 1,231,494 1,250,562 1,239,715 1,242,584 15,010,667
S kW 0 0 0 0 0 388,390 954,495 999,523 993,941 556,495 4,971 0 3,897,816
N kW 876,295 893,936 886,742 882,243 903,630 572,451 14,868 0 0 419,937 911,529 882,874 7,244,505
kW Total 876,295 893,936 886,742 882,243 903,630 960,841 969,363 999,523 993,941 976,432 916,501 882,874 11,142,321
S kWh 0 0 0 0 0 106,429,828 281,656,066 305,711,331 295,926,298 152,217,968 1,356,127 0 1,143,297,617
N kWh 292,742,285 293,509,062 273,130,416 253,892,738 250,372,471 154,953,501 4,314,151 0 0 115,549,812 258,969,687 280,812,878 2,178,247,001
Exhibit No. 29
Case No. IPC-E-23-11
J. Brady, IPC
Page 1 of 4
Total kWh 292,742,285 293,509,062 273,130,416 253,892,738 250,372,471 261,383,329 285,970,217 305,711,331 295,926,298 267,767,780 260,325,814 280,812,878 3,321,544,618
Rate 09P I Bills 281.4 281.1 279 276.8 280.4 275.7 285.9 279.7 281 280 282.1 278.8 3,362
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -
BLC 161,070 157,417 160,006 157,428 159,471 167,508 172,468 165,516 154,215 159,557 159,756 160,908 1,935,320
S kW 0 0 0 0 0 0 140,515 142,116 139,062 141,174 0 (270)562,598
N kW 122,555 118,748 121,749 118,891 120,018 132,429 2,223 0 0 0 128,829 123,437 988,878
Total kW 122,555 118,748 121,749 118,891 120,018 132,429 142,738 142,116 139,062 141,174 128,829 123,167 1,551,476
On-peak kW 0 0 0 0 0 0 131,493 133,093 130,008 131,415 0 (340)525,669
S On-peak kWh 0 0 0 0 0 0 7,458,614 7,670,305 7,647,899 6,824,805 0 0 29,601,623
S Mid-peak kWh 0 0 0 0 0 0 10,414,972 10,630,151 10,879,434 9,712,760 0 0 41,637,317
S Off-peak kWh 0 0 0 0 0 0 35,022,708 38,428,477 35,747,585 34,528,530 0 0 143,727,301
N On-peak kWh 11,099,904 10,559,968 10,345,919 10,874,684 10,290,804 10,547,528 0 0 0 0 10,997,644 10,683,576 85,400,026
N Mid-peak kWh 11,296,591 10,729,769 10,537,625 11,210,443 10,694,244 11,119,677 0 0 0 0 11,372,637 10,870,847 87,831,834
N Off-peak kWh 27,235,357 27,671,727 24,570,320 25,165,165 24,160,052 27,707,574 0 0 0 0 26,900,769 26,532,976 209,943,940
Total kWh 49,631,851 48,961,464 45,453,864 47,250,292 45,145,100 49,374,779 52,896,294 56,728,933 54,274,918 51,066,095 49,271,050 48,087,399 598,142,039
Rate 09T I Bills 4 4 4 4 4 4 4 4 4 4 4 4 48
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -
BLC 1,374 1,288 1,220 1,432 1,490 1,439 1,386 1,339 1,486 1,580 1,501 1,473 17,008
S kW 0 0 0 0 0 0 1,176 990 1,044 1,189 0 0 4,400
N kW 1,090 994 946 1,208 1,366 1,377 0 0 0 0 1,235 1,269 9,486
Total kW 1,090 994 946 1,208 1,366 1,377 1,176 990 1,044 1,189 1,235 1,269 13,886
On-peak kW 0 0 0 0 0 0 1,027 832 891 1,018 0 0 3,767
S On-peak kWh 0 0 0 0 0 0 33,165 24,083 28,203 25,210 0 0 110,660
S Mid-peak kWh 0 0 0 0 0 0 51,785 36,518 40,463 40,253 0 0 169,020
S Off-peak kWh 0 0 0 0 0 0 213,120 171,466 181,735 194,362 0 0 760,683
N On-peak kWh 71,700 61,108 57,802 65,925 71,263 67,286 0 0 0 0 72,835 74,551 542,469
N Mid-peak kWh 74,456 66,349 60,911 70,033 75,809 71,570 0 0 0 0 75,641 77,582 572,351
N Off-peak kWh 173,701 175,365 149,673 162,941 177,795 186,090 0 0 0 0 179,449 196,945 1,401,959
Total kWh 319,857 302,822 268,387 298,899 324,867 324,946 298,070 232,066 250,401 259,826 327,925 349,077 3,557,143
Rate 19S I Bills 1 1 1 1 1 1 1 1 1 1 1 1 12
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -
BLC 1,209 1,203 1,176 1,170 1,177 1,213 1,171 1,184 1,188 1,162 1,164 1,150 14,167
S kW 0 0 0 0 0 0 1,067 1,086 1,080 1,058 0 0 4,291
N kW 1,142 1,127 1,104 1,135 1,152 1,134 0 0 0 0 1,134 1,123 9,051
Total kW 1,142 1,127 1,104 1,135 1,152 1,134 1,067 1,086 1,080 1,058 1,134 1,123 13,342
On-peak kW 0 0 0 0 0 0 830 895 866 848 0 0 3,439
S On-peak kWh 0 0 0 0 0 15,186 72,153 77,575 81,111 78,585 0 0 324,610
S Mid-peak kWh 0 0 0 0 0 19,311 90,864 99,176 105,959 103,593 0 0 418,903
S Off-peak kWh 0 0 0 0 0 67,396 328,195 352,012 343,120 368,497 0 0 1,459,219
N On-peak kWh 121,298 124,751 113,939 126,095 121,616 86,802 0 0 0 0 126,064 117,161 937,724
N Mid-peak kWh 124,357 129,140 118,204 129,497 125,204 88,967 0 0 0 0 129,587 120,529 965,486
N Off-peak kWh 336,667 317,850 279,175 308,717 300,952 242,383 0 0 0 0 330,883 312,059 2,428,686
Total kWh 582,322 571,741 511,317 564,309 547,771 520,046 491,212 528,763 530,190 550,674 586,535 549,749 6,534,628
Rate 19P I Bills 113 113 113 113 113 113 113 113 113 113 113 113 1,356
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -
BLC 431,617 440,148 420,070 427,664 439,780 445,858 437,209 444,833 443,608 434,900 436,890 438,634 5,241,211
S kW 0 0 0 0 0 0 391,774 402,402 406,562 400,556 0 (575)1,600,720
N kW 378,684 385,302 367,585 369,769 374,451 380,809 0 0 0 0 389,446 387,351 3,033,396
Total kW 378,684 385,302 367,585 369,769 374,451 380,809 391,774 402,402 406,562 400,556 389,446 386,777 4,634,116
On-peak kW 0 0 0 0 0 0 376,296 386,737 390,330 384,753 0 (192)1,537,925
S On-peak kWh 0 0 0 0 0 0 28,850,445 28,546,246 30,640,333 27,694,697 0 0 115,731,721
S Mid-peak kWh 0 0 0 0 0 0 37,159,894 36,904,813 39,760,363 36,013,270 0 0 149,838,340
S Off-peak kWh 0 0 0 0 0 0 129,282,859 139,182,703 136,589,792 130,881,667 0 0 535,937,021
N On-peak kWh 42,825,906 42,579,852 39,164,829 43,167,842 41,003,880 40,184,243 0 0 0 0 43,514,945 41,794,107 334,235,604
N Mid-peak kWh 43,038,301 42,960,026 39,497,565 43,655,658 41,504,801 40,877,795 0 0 0 0 43,834,897 42,064,849 337,433,892
N Off-peak kWh 111,025,731 118,639,767 99,613,937 106,623,757 101,977,752 111,963,209 0 0 0 0 114,250,609 110,023,987 874,118,749
Total kWh 196,889,938 204,179,645 178,276,331 193,447,257 184,486,432 193,025,248 195,293,198 204,633,762 206,990,488 194,589,634 201,600,451 193,882,943 2,347,295,327
Rate 19T I Bills 2 2 2 2 2 2 2 2 2 2 2 2 24
Min Bills 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 -
Exhibit No. 29
Case No. IPC-E-23-11
J. Brady, IPC
Page 2 of 4
BLC 5,069 5,130 4,339 4,350 5,393 5,239 4,887 5,131 5,541 5,005 4,679 5,251 60,014
S kW 0 0 0 0 0 0 4,757 5,020 5,412 4,876 0 0 20,063
N kW 4,997 5,021 4,246 4,295 5,247 5,088 0 0 0 0 4,551 5,134 38,580
Total kW 4,997 5,021 4,246 4,295 5,247 5,088 4,757 5,020 5,412 4,876 4,551 5,134 58,643
On-peak kW 0 0 0 0 0 0 4,529 4,722 5,186 4,634 0 0 19,071
S On-peak kWh 0 0 0 0 0 0 365,330 357,420 427,079 367,027 0 0 1,516,856
S Mid-peak kWh 0 0 0 0 0 0 456,627 459,872 535,646 456,828 0 0 1,908,973
S Off-peak kWh 0 0 0 0 0 0 1,846,406 2,016,303 2,078,860 1,941,946 0 0 7,883,515
N On-peak kWh 628,706 614,421 474,389 526,466 596,933 603,009 0 0 0 0 561,956 600,646 4,606,525
N Mid-peak kWh 626,332 615,646 475,024 532,592 599,586 597,293 0 0 0 0 564,016 597,709 4,608,196
N Off-peak kWh 1,675,969 1,739,298 1,217,779 1,322,629 1,544,785 1,701,860 0 0 0 0 1,509,648 1,629,647 12,341,615
Total kWh 2,931,006 2,969,365 2,167,192 2,381,687 2,741,303 2,902,162 2,668,363 2,833,595 3,041,585 2,765,801 2,635,620 2,828,001 32,865,680
Rate 24 I In Bills 0 0 0 0 0 19327.8 19243 19478.2 19621.3 0 0 0 77,670
I Out-Bills 18525 18838.8 18916.6 19284.1 19398 0 0 0 0 19478.4 19081.8 18953.8 152,477
Min Bills 39.9 23.9 62.5 71.2 48.7 22.3 -0.3 0.0 6.9 34.6 44.7 24.3 379
In-kW 1,007,972 1,080,974 1,018,561 957,920 4,065,427
Out-kW 0 0 0 0 -
Total kW 1,007,972 1,080,974 1,018,561 957,920 4,065,427
In-kWh (451) (71,914)0 0 30,276 287,426,700 457,854,983 435,332,630 326,716,896 883,204 7,163 347,305 1,508,526,794
Out-kWh 2,605,766 2,575,541 2,950,218 28,547,278 151,846,820 661,503 (257,707) (5,393,540)5,555,976 139,914,453 23,656,636 3,333,035 355,995,978
Total kWh 2,605,316 2,503,627 2,950,218 28,547,278 151,877,097 288,088,203 457,597,276 429,939,089 332,272,872 140,797,657 23,663,799 3,680,340 1,864,522,772
Rate 40 I In Bills 1663 1663 1663 1663 1663 1663 1663 1663 1663 1663 1663 1663 19,956
Min Bills 70.6 68.8 68.9 70.8 71.5 71.8 67.9 70.9 71.9 72.6 70.9 70.3 847
kWh 1,111,671 1,129,997 1,135,643 1,141,087 1,153,527 1,159,902 1,165,140 1,176,306 1,183,323 1,187,351 1,189,839 1,191,515 13,925,301
Intermittent Usag 14 14 14 14 14 14 14 14 14 14 14 14 168
Rate 42 I Bills 766 766 766 766 766 766 766 766 766 766 766 766 9,192
kWh 247,623 249,052 216,602 249,052 231,141 225,244 235,982 234,167 240,982 235,926 242,437 239,753 2,847,961
Rate 15 1csa 7,515 7,518 7,512 7,495 7,503 7,493 7,470 7,455 7,430 7,438 7,439 7,446 89,714
2csa 769 772 776 774 790 790 795 791 802 789 797 813 9,459
2csf 808 812 807 814 794 793 794 795 794 795 798 796 9,599
4chf 105 104 104 104 100 99 95 92 92 90 90 89 1,164
4csa 139 141 151 152 157 157 151 153 152 150 149 149 1,801
4csf 440 447 445 446 445 447 453 450 454 452 456 453 5,387
1khf 71 79 79 80 80 80 81 80 81 82 83 80 956
Min Bill 34.2 30.8 34.4 35.7 31.8 37.6 42.6 36.2 38.2 39.1 34.3 38.8 434
Total kWh 467,630 460,083 454,542 448,316 445,066 440,449 434,588 434,010 429,419 424,087 418,486 410,747 5,267,423
Rate 41A I
70 S 36 36 36 36 36 36 36 36 36 36 35 36 431
100 S 15,573 14,950 13,395 16,513 14,949 14,952 14,957 14,804 14,963 14,992 14,994 15,005 180,046
200 S 1,793 1,667 1,565 1,765 1,668 1,670 1,671 1,642 1,671 1,674 1,675 1,676 20,137
250 S 240 238 233 246 238 228 227 228 230 231 230 230 2,799
400 S 119 120 100 144 122 125 126 126 126 126 126 126 1,486
41A Variable Usag 3,624 3,624 3,624 3,624 3,624 3,624 3,624 3,402 3,624 3,624 3,624 3,624 43,270
41A kWh 431,570 391,271 341,515 413,338 356,774 341,204 342,933 334,813 319,578 302,319 295,621 282,208 4,153,143
All Rate 41 Bills 2,980 2,980 2,980 2,980 2,980 2,980 2,980 2,980 2,980 2,980 2,980 2,980 35,760
All Rate 41 kWh 2,294,057 2,126,315 1,939,585 2,126,315 1,927,140 1,868,190 1,866,664 1,879,169 1,904,924 1,904,924 1,951,450 1,971,281 23,760,014
-
Rate 41B 29 70 S 0 0 0 0 0 0 0 0 0 0 0 0 -
39 100 S 3,219 3,092 3,008 2,976 2,957 2,060 1,917 1,913 675 661 661 660 23,799
74 200 S 148 127 120 120 117 113 110 110 68 65 64 64 1,226
100 250 S 858 832 826 813 794 749 674 649 574 433 419 418 8,039
157 400 S 127 127 127 125 123 121 122 120 70 70 57 56 1,245
Variable Usage Ch 0 0 0 0 0 0 0 0 0 0 0 0 -
kwh 273,073 256,567 239,127 263,502 241,734 198,240 187,222 185,109 108,196 90,770 86,911 84,537 2,214,987
-
Rate 41BM 100 S 0 0 0 0 0 0 0 0 0 0 0 0 -
200 S 0 0 0 0 0 0 0 0 0 0 0 0 -
250 S 33 33 33 33 33 33 33 33 33 33 33 33 396
Out of Season - No Impact Out of Season - No Impact
Exhibit No. 29
Case No. IPC-E-23-11
J. Brady, IPC
Page 3 of 4
400 S 0 0 0 0 0 0 0 0 0 0 0 0 -
Bills 6 6 6 6 6 7 4 4 4 4 4 4 61
kWh 10,274 8,601 7,518 7,717 6,344 5,846 5,160 4,299 4,997 5,114 5,893 6,340 78,103
-
Rate 41C kWh 857,989 844,827 805,767 903,470 845,378 873,468 896,048 892,087 951,296 951,591 951,646 930,670 10,704,238
-
Rate 41CM I Bills 1230 1228 1226 1229 1230 1231 1233 1230 1228 1227 1226 1228 14,746
kWh 721,151 625,049 545,658 538,287 476,911 449,432 435,301 462,861 520,856 555,130 611,379 667,526 6,609,543
-
Rate 09S TOU I Bills 37473.4 37518.3 37564.4 37635.7 37677.7 37704.6 37761.8 37824 37924.9 37975.7 38108.3 37993.2 453,162
Min Bills 124 155 180 174 138 126 164 132 152 149 158 132 1,784
BLC 1,234,995 1,261,854 1,246,605 1,260,028 1,267,685 1,283,905 1,248,027 1,243,213 1,231,494 1,250,562 1,239,715 1,242,584 15,010,667
S kW 0 0 0 0 0 388,390 954,495 999,523 993,941 556,495 4,971 0 3,897,816
N kW 876,295 893,936 886,742 882,243 903,630 572,451 14,868 0 0 419,937 911,529 882,874 7,244,505
kW Total 876,295 893,936 886,742 882,243 903,630 960,841 969,363 999,523 993,941 976,432 916,501 882,874 11,142,321
S On-peak kWh 0 0 0 0 0 14,902,260 39,345,426 43,384,600 40,177,715 20,707,976 203,810 0 158,721,787
S Mid-peak kWh 0 0 0 0 0 21,368,181 55,903,775 62,139,039 58,851,349 30,472,640 292,401 0 229,027,384
S Off-peak kWh 0 0 0 0 0 70,159,387 186,406,865 200,187,692 196,897,234 101,037,352 859,916 0 755,548,446
N On-peak kWh 62,279,428 66,275,196 61,650,260 57,174,536 56,124,199 32,736,594 634,547 0 0 25,846,693 58,333,605 61,883,748 482,938,805
N Mid-peak kWh 64,317,629 68,677,467 64,349,644 60,822,507 60,323,472 35,368,238 680,640 0 0 27,346,279 61,243,599 63,867,562 506,997,039
N Off-peak kWh 166,145,229 158,556,399 147,130,512 135,895,695 133,924,800 86,848,668 2,998,964 0 0 62,356,841 139,392,483 155,061,568 1,188,311,158
Total kWh 292,742,285 293,509,062 273,130,416 253,892,738 250,372,471 261,383,329 285,970,217 305,711,331 295,926,298 267,767,780 260,325,814 280,812,878 3,321,544,618
Exhibit No. 29
Case No. IPC-E-23-11
J. Brady, IPC
Page 4 of 4
BEFORE THE
IDAHO PUBLIC UTILITIES COMMISSION
CASE NO. IPC-E-23-11
IDAHO POWER COMPANY
BRADY, DI
TESTIMONY
EXHIBIT NO. 30
AVERAGE
January Februar March April May June July August Septembe Octobe November Decembe Annual
HydroelectricGeneration(MWh) 786,100.5761,910.5810,884.1849,798.1889,410.6882,292.4739,722.5603,685.1565,117.7460,156.2414,198.9578,194.88,341,471.4
BridgerCoal
Energy(MWh) 124,033.176,906.048,937.052,205.357,219.6103,063.0168,516.7225,325.0213,150.9221,858.4233,383.2248,640.81,773,238.9
Expense($x1000) 3,883.4$2,497.3$1,723.4$1,807.2$2,191.7$3,570.9$5,475.0$7,110.2$6,739.6$7,010.3$7,322.0$7,781.4$57,112.4$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ166.430,862.036,500.418,944.35,165.139,955.149,495.5181,210.3
Expense($x1000) 5.8$ Ͳ$ Ͳ$ Ͳ$ Ͳ$7.9$1,436.8$1,694.9$884.0$240.5$1,859.4$2,281.5$8,410.6$
BridgerGas
Energy(MWh)Ͳ35,241.7 Ͳ2,431.81,151.23,960.520,893.232,167.918,107.624,179.7 Ͳ Ͳ138,133.7
Expense($x1000)Ͳ$1,297.2$ Ͳ$107.3$43.9$174.1$1,006.2$1,559.2$814.8$1,070.3$ Ͳ$ Ͳ$6,072.8$
LangleyGulch
Energy(MWh) 129,390.0114,764.457,729.053,023.086,144.4126,796.3214,814.5215,911.8207,623.4221,421.4159,251.6125,022.91,711,892.7
Expense($x1000) 10,055.9$3,250.2$3,580.0$1,781.3$2,457.2$3,864.7$7,210.1$7,795.7$6,909.8$7,462.7$11,314.8$13,032.6$78,715.1$
Danskin
Energy(MWh) 13,089.2144.4735.017.5157.321,732.991,822.771,882.84,729.6432.8553.97,834.8213,132.9
Expense($x1000) 1,716.8$6.7$70.4$1.0$7.0$1,051.8$5,015.8$4,284.0$258.5$24.1$63.2$1,257.5$13,756.8$
BennettMountain
Energy(MWh)3,593.0108.5353.66.1118.410,534.452,008.438,590.42,352.8 Ͳ689.72,853.8111,209.3
Expense($x1000) 464.9$4.9$32.9$0.3$5.7$515.7$2,870.6$2,305.2$127.1$ Ͳ$76.6$445.8$6,849.8$
FixedCapacityChargeͲGasTransportation($x1000 1,207.5$1,111.1$1,207.5$1,173.8$1,207.5$1,173.8$1,207.5$1,207.5$1,173.8$1,207.5$1,173.8$1,207.5$14,259.2$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 147,710.044,687.678,700.424,845.450,190.5112,253.4221,549.1175,750.773,528.351,327.0168,173.5225,320.11,374,036.1
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 223,482.2108,916.2161,143.9110,184.8140,943.6202,339.6315,901.5264,236.1149,125.0123,723.6237,439.5295,120.52,332,556.4
MarketExpense($x1000 7,109.0$1,484.7$2,193.0$717.3$1,311.7$3,269.4$7,687.3$6,730.4$2,731.8$1,919.8$6,578.8$10,393.9$52,127.0$
MarketExpenseͲNoWheeling($x1000 6,005.68$1,150.92$1,605.15$531.70$936.77$2,430.91$6,032.49$5,417.70$2,182.54$1,536.45$5,322.66$8,710.94$41,863.9$
ElkhornWindExpense($x1000) 2,451.0$1,720.3$1,870.3$1,914.6$1,926.4$1,795.5$2,109.1$1,843.1$1,419.1$1,543.2$1,926.7$2,221.4$22,740.5$
JackpotSolarExpense($x1000 212.4$270.6$456.4$551.6$686.4$755.1$792.2$732.7$591.6$430.4$223.2$174.7$5,877.5$
NealHotSpringsExpense($x1000) 2,480.1$1,956.5$2,308.4$1,951.7$1,687.2$1,464.7$1,095.4$1,270.7$1,510.6$2,009.0$2,450.0$2,444.1$22,628.3$
RaftRiverGeothermalExpense($x1000 614.8$497.5$617.5$534.1$481.9$432.2$481.0$496.2$472.7$536.7$595.1$595.3$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 11,763.9$5,595.9$6,857.8$5,483.7$5,718.6$6,878.4$10,510.2$9,760.3$6,176.5$6,055.6$10,517.6$14,146.5$99,465.0$
Storage
BlackMesaBatteryEnergy(MWh (1,231.6)(983.0)(1,238.9)(1,124.7)(967.4)(854.0)(877.7)(871.0)(805.5)(922.2)(911.7)(1,102.7)(11,890.3)
80MWGridBatteryEnergy(MWh (2,447.3)(1,979.2)(2,467.2)(2,252.3)(1,948.3)(1,709.9)(1,752.9)(1,740.0)(1,617.6)(1,841.0)(1,790.9)(2,177.3)(23,723.7)
11MWGridBatteryEnergy(MWh (332.6)(261.4)(316.8)(300.0)(256.0)(225.4)(241.6)(236.5)(214.4)(251.6)(231.4)(277.8)(3,145.4)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 1 of 76
TotalStorage(MWh (4,011.4)(3,223.6)(4,022.9)(3,677.0)(3,171.6)(2,789.2)(2,872.2)(2,847.5)(2,637.5)(3,014.8)(2,933.9)(3,557.8)(38,759.4)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.38,800.08,106.7800.0 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.233.574.973.188.6102.298.288.975.268.747.624.8811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.4225,952.5246,142.3288,603.1313,597.5318,696.2295,393.9281,711.2234,049.4222,197.3177,903.2183,093.72,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 49,744.886,332.7104,135.1184,194.9131,842.865,626.28,733.111,500.037,597.057,258.79,118.610,498.6756,582.5
Revenue($x1000) 2,016.2$3,149.8$2,928.0$5,401.5$3,539.0$1,886.0$363.9$606.0$1,622.8$2,360.9$467.9$484.4$24,826.5$
RevenueͲNoWheeling($x1000) 1,644.61$2,504.99$2,150.23$4,025.64$2,554.24$1,395.80$298.62$520.11$1,342.01$1,933.24$399.80$406.00$19,175.3$
TotalEnergy 1,428,850.91,234,421.51,217,841.81,168,470.81,353,816.91,602,921.81,927,228.21,763,858.91,373,841.61,218,929.61,251,370.21,476,225.017,017,777.3
TotalNPSE 42,370.7$27,921.2$24,164.6$20,892.7$24,326.8$37,795.5$58,527.8$58,366.8$38,788.0$36,567.6$47,715.9$56,826.4$479,915.2$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 2 of 76
1981
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 792,720.5868,647.5806,477.0844,673.8693,665.0868,212.9712,875.4546,547.0603,413.2456,539.7358,142.4632,637.88,184,552.0
BridgerCoal
Energy(MWh) 125,632.975,815.246,769.844,383.749,018.591,570.6166,180.9238,667.4232,977.2231,209.7240,568.8250,686.71,793,481.27
Expense($x1000) 3,929.37$2,465.92$1,661.07$1,582.25$1,955.60$3,240.12$5,407.83$7,494.24$7,310.26$7,279.46$7,528.89$7,840.28$57,695.29$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ40,144.142,831.91,535.4282.640,297.451,238.0176,450.9
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,867.74$1,991.24$71.80$13.16$1,876.93$2,366.95$8,193.6$
BridgerGas
Energy(MWh)Ͳ30,048.1 Ͳ4,725.1226.4974.433,091.828,406.714,879.129,853.2 Ͳ Ͳ142,204.8
Expense($x1000)Ͳ$1,099.29$ Ͳ$210.77$8.83$42.08$1,572.08$1,372.58$656.29$1,307.35$ Ͳ$ Ͳ$6,269.3$
LangleyGulch
Energy(MWh) 178,716.78,151.3 Ͳ Ͳ189,688.2207,604.3215,555.0216,497.2212,066.9221,374.3176,754.7149,975.91,776,384.5
Expense($x1000) 13,597.30$221.74$ Ͳ$ Ͳ$5,134.39$6,069.07$7,204.54$7,786.00$7,016.50$7,432.39$12,387.60$15,084.51$81,934.0$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,658.0100,192.697,164.2 Ͳ Ͳ5,322.4 Ͳ204,337.1
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$70.78$5,259.45$5,473.72$ Ͳ$ Ͳ$592.97$ Ͳ$11,396.9$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,387.348,037.135,720.43,521.1 Ͳ486.1 Ͳ89,151.9
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$62.57$2,535.48$2,022.16$180.70$ Ͳ$54.14$ Ͳ$4,855.1$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 79,913.826,799.471,423.87,974.762,844.775,528.6223,295.9188,212.842,002.851,890.9192,905.3153,036.21,175,828.8
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 155,686.091,028.0153,867.393,314.1153,597.8165,614.8317,648.4276,698.1117,599.5124,287.4262,171.3222,836.62,134,349.2
MarketExpense($x1000 3,279.43$817.22$1,799.19$201.96$1,561.04$2,029.49$7,414.09$7,166.49$1,535.87$1,952.53$7,622.81$6,483.81$41,863.9$
MarketExpenseͲNoWheeling($x1000 2,682.53$617.05$1,265.70$142.39$1,091.63$1,465.34$5,746.22$5,760.67$1,222.14$1,564.94$6,181.94$5,340.73$33,081.3$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 8,440.8$5,062.0$6,518.3$5,094.4$5,873.5$5,912.8$10,223.9$10,103.2$5,216.1$6,084.1$11,376.9$10,776.3$90,682.4$
Storage
BlackMesaBatteryEnergy(MWh (1,256.78)(892.75)(1,132.3)(1,147.9)(938.2)(861.2)(868.9)(870.5)(814.4)(975.3)(951.0)(1,178.9)(11,888.1)
80MWGridBatteryEnergy(MWh (2,466.44)(1,775.24)(2,269.9)(2,284.3)(1,867.7)(1,763.1)(1,750.9)(1,737.4)(1,603.4)(1,999.3)(1,868.2)(2,326.3)(23,712.2)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 3 of 76
11MWGridBatteryEnergy(MWh (336.65)(242.84)(286.4)(300.3)(251.0)(230.6)(239.5)(234.9)(217.3)(270.0)(249.3)(296.7)(3,155.5)
TotalStorage(MWh (4,059.9)(2,910.8)(3,688.7)(3,732.6)(3,056.9)(2,854.9)(2,859.4)(2,842.8)(2,635.0)(3,244.6)(3,068.5)(3,801.9)(38,755.8)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 22,764.262,343.731,800.9103,569.543,008.251,697.37,929.85,737.844,440.363,638.77,255.210,466.5454,652.1
Revenue($x1000) 1,331.1$2,503.6$1,184.3$3,597.0$1,310.2$1,652.0$420.6$344.6$1,843.3$2,616.7$373.2$639.8$17,816.4$
RevenueͲNoWheeling($x1000) 1,161.1$2,037.9$946.7$2,823.4$988.9$1,265.9$361.3$301.7$1,511.4$2,141.4$319.0$561.6$14,420.4$
TotalEnergy 1,428,850.931,234,421.461,217,841.841,168,470.801,353,816.921,602,921.811,927,228.241,763,858.911,373,841.601,218,929.611,251,370.181,476,225.0117,017,777.31
TotalNPSE 41,138.3$24,764.2$21,823.3$20,403.7$29,103.9$37,363.4$59,017.5$60,362.0$37,108.9$36,564.8$50,474.3$53,793.8$475,314.0$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 4 of 76
1982
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 807,357.3900,601.91,074,415.81,008,560.21,134,295.41,155,438.11,193,723.0877,453.3765,593.0575,288.8656,255.01,084,226.211,233,208.0
BridgerCoal
Energy(MWh) 124,993.150,669.334,203.432,779.737,125.871,746.2114,961.6165,360.7104,903.7156,413.4202,298.2215,894.31,311,349.54
Expense($x1000) 3,910.97$1,742.66$1,299.62$1,248.49$1,613.37$2,669.51$3,933.56$5,384.18$3,623.50$5,126.34$6,427.28$6,838.50$43,817.98$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ3,695.9 Ͳ40.532,801.42,465.239,124.5
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$173.71$ Ͳ$1.92$1,538.65$115.38$1,835.4$
BridgerGas
Energy(MWh)Ͳ44,106.1 Ͳ3,054.3716.44,833.715,701.826,010.24,399.515,949.5 Ͳ Ͳ114,771.5
Expense($x1000)Ͳ$1,390.39$ Ͳ$117.44$24.04$180.25$642.32$1,082.34$167.22$601.32$ Ͳ$ Ͳ$4,205.3$
LangleyGulch
Energy(MWh) 162,902.63,576.4 Ͳ Ͳ Ͳ27,234.3200,974.1215,512.3214,339.5223,932.07,617.0 Ͳ1,056,088.1
Expense($x1000) 10,880.87$87.07$ Ͳ$ Ͳ$ Ͳ$713.12$5,953.07$6,856.28$6,276.61$6,652.49$488.24$ Ͳ$37,907.8$
Danskin
Energy(MWh) 63.5 Ͳ Ͳ Ͳ Ͳ Ͳ183.6739.9 Ͳ Ͳ Ͳ Ͳ986.9
Expense($x1000) 7.06$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$8.71$35.74$ Ͳ$ Ͳ$ Ͳ$ Ͳ$51.5$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ2,074.6 Ͳ Ͳ Ͳ Ͳ2,074.6
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$97.56$ Ͳ$ Ͳ$ Ͳ$ Ͳ$97.6$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 76,635.125,643.3622.9661.15,033.646,392.768,923.8118,857.523,851.027,332.3120,567.09,252.5523,772.7
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 152,407.289,871.883,066.486,000.595,786.7136,478.9163,276.3207,342.999,447.799,728.8189,833.079,052.91,482,293.1
MarketExpense($x1000 2,873.53$714.13$15.07$17.63$114.02$1,255.78$2,134.69$3,756.12$698.99$845.60$3,976.30$322.35$16,724.2$
MarketExpenseͲNoWheeling($x1000 2,301.12$522.59$10.42$12.69$76.42$909.26$1,619.87$2,868.33$520.84$641.45$3,075.74$253.24$12,812.0$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 8,059.4$4,967.5$5,263.0$4,964.7$4,858.3$5,356.8$6,097.6$7,210.9$4,514.8$5,160.6$8,270.7$5,688.8$70,413.1$
Storage
BlackMesaBatteryEnergy(MWh (1,134.97)(924.46)(1,448.2)(1,209.5)(1,077.4)(886.1)(875.8)(841.4)(638.5)(952.7)(892.3)(1,059.1)(11,940.3)
80MWGridBatteryEnergy(MWh (2,207.54)(1,968.88)(2,942.9)(2,398.3)(2,167.0)(1,760.0)(1,757.6)(1,690.1)(1,296.4)(1,845.3)(1,728.7)(2,132.2)(23,894.8)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 5 of 76
11MWGridBatteryEnergy(MWh (304.37)(255.22)(373.7)(325.1)(285.3)(232.2)(242.4)(228.8)(174.5)(253.9)(236.3)(270.9)(3,182.5)
TotalStorage(MWh (3,646.9)(3,148.6)(4,764.7)(3,932.8)(3,529.7)(2,878.3)(2,875.8)(2,760.4)(2,109.4)(3,051.9)(2,857.2)(3,462.1)(39,017.7)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 18,145.077,241.5215,296.3246,667.3224,263.7110,382.963,008.521,477.247,657.071,637.612,527.985,070.01,193,374.8
Revenue($x1000) 878.8$2,882.2$5,680.7$6,602.6$5,424.2$3,001.5$1,926.7$978.0$1,676.3$2,577.3$537.0$3,400.8$35,566.1$
RevenueͲNoWheeling($x1000) 743.2$2,305.3$4,072.6$4,760.2$3,749.1$2,177.1$1,456.0$817.5$1,320.4$2,042.2$443.5$2,765.4$26,652.4$
TotalEnergy 1,428,850.931,234,421.481,217,841.831,168,470.811,353,816.941,602,921.831,927,228.251,763,858.881,373,841.591,218,929.591,251,370.201,476,224.9817,017,777.31
TotalNPSE 38,481.5$23,724.3$15,710.1$16,841.3$18,513.3$29,536.0$40,075.6$44,326.2$31,406.4$32,030.4$33,217.9$27,607.4$360,384.2$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 6 of 76
1983
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,291,179.91,043,293.81,144,542.71,145,167.51,230,303.61,255,844.01,073,430.3877,964.0750,148.8602,517.6740,356.61,113,103.012,267,851.7
BridgerCoal
Energy(MWh) 114,579.237,720.430,750.232,944.645,147.683,296.6130,229.2163,269.4127,194.8149,725.3196,151.5220,114.31,331,123.15
Expense($x1000) 3,611.44$1,370.22$1,200.30$1,253.23$1,844.24$3,001.99$4,373.02$5,324.00$4,265.11$4,933.90$6,250.28$6,959.90$44,387.63$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ1,473.54,772.2 Ͳ40.520,555.84,966.831,930.4
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$69.04$224.15$ Ͳ$1.92$959.19$230.13$1,490.2$
BridgerGas
Energy(MWh)Ͳ29,983.8 Ͳ2,863.52,651.07,486.822,278.135,538.412,965.722,288.5 Ͳ Ͳ136,055.7
Expense($x1000)Ͳ$960.13$ Ͳ$111.75$90.44$283.24$925.55$1,502.73$500.84$853.86$ Ͳ$ Ͳ$5,228.5$
LangleyGulch
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ13,793.4216,137.6215,040.4214,279.6219,085.5 Ͳ Ͳ878,336.5
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$367.43$6,490.54$6,944.39$6,368.13$6,611.75$ Ͳ$ Ͳ$26,782.2$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ123.11,270.7185.1 Ͳ Ͳ Ͳ Ͳ1,578.9
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$5.11$62.10$9.82$ Ͳ$ Ͳ$ Ͳ$ Ͳ$77.0$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ2,876.21,978.8 Ͳ Ͳ Ͳ Ͳ4,855.0
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$131.06$95.94$ Ͳ$ Ͳ$ Ͳ$ Ͳ$227.0$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 1,060.83,362.3456.450.32,907.336,213.5115,634.1118,795.429,970.724,172.273,953.86,416.2412,993.1
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 76,833.067,590.982,900.085,389.793,660.4126,299.8209,986.6207,280.8105,567.496,568.7143,219.876,216.61,371,513.5
MarketExpense($x1000 45.12$98.75$10.53$1.31$67.85$994.99$3,619.70$3,729.08$867.15$743.97$2,397.45$226.65$12,802.6$
MarketExpenseͲNoWheeling($x1000 37.20$73.64$7.12$0.93$46.13$724.50$2,755.99$2,841.76$643.29$563.42$1,845.06$178.73$9,717.8$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 5,795.4$4,518.6$5,259.8$4,953.0$4,828.0$5,172.0$7,233.7$7,184.3$4,637.3$5,082.6$7,040.0$5,614.3$67,318.9$
Storage
BlackMesaBatteryEnergy(MWh (1,287.82)(1,143.90)(1,419.1)(1,218.1)(1,143.3)(864.3)(889.9)(873.3)(833.7)(910.7)(941.6)(1,134.8)(12,660.5)
80MWGridBatteryEnergy(MWh (2,492.56)(2,319.18)(2,832.3)(2,476.5)(2,356.5)(1,746.3)(1,777.8)(1,744.1)(1,691.5)(1,862.7)(1,856.3)(2,256.3)(25,411.9)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 7 of 76
11MWGridBatteryEnergy(MWh (343.85)(315.68)(376.7)(326.1)(295.3)(229.7)(245.2)(239.7)(222.4)(253.5)(250.5)(289.9)(3,388.5)
TotalStorage(MWh (4,124.2)(3,778.8)(4,628.1)(4,020.8)(3,795.1)(2,840.3)(2,912.9)(2,857.0)(2,747.6)(3,026.9)(3,048.3)(3,680.9)(41,460.9)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 252,536.0166,374.7281,940.2382,549.8327,836.7201,533.431,833.229,219.968,491.790,535.723,816.0117,613.31,974,280.4
Revenue($x1000) 9,325.1$5,198.4$6,997.9$10,108.7$8,109.8$5,414.9$1,200.8$1,361.9$2,642.7$3,314.4$1,065.9$4,741.5$59,482.0$
RevenueͲNoWheeling($x1000) 7,438.8$3,955.7$4,892.0$7,251.3$5,661.0$3,909.6$963.1$1,143.7$2,131.2$2,638.2$888.0$3,863.0$44,735.4$
TotalEnergy 1,428,850.961,234,421.471,217,841.831,168,470.791,353,816.941,602,921.791,927,228.231,763,858.921,373,841.581,218,929.551,251,370.201,476,224.9817,017,777.24
TotalNPSE 16,583.7$20,069.4$14,290.3$13,322.6$16,094.7$27,032.8$43,451.2$44,386.8$31,629.2$31,234.6$30,213.7$26,428.4$329,484.0$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 8 of 76
1984
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,165,120.11,005,842.41,072,179.71,104,538.31,203,764.71,262,895.61,081,669.5922,060.6797,505.3583,026.6735,916.1916,636.811,851,155.6
BridgerCoal
Energy(MWh) 124,571.242,998.032,752.830,296.047,137.974,918.3126,075.0167,059.1158,831.7161,414.7202,615.8250,179.61,418,850.09
Expense($x1000) 3,898.83$1,522.01$1,257.90$1,177.05$1,901.49$2,760.82$4,253.45$5,432.90$5,175.92$5,270.35$6,436.33$7,825.69$46,912.74$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ162.0 Ͳ40.519,837.730,497.350,659.1
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$7.67$ Ͳ$1.92$926.28$1,417.57$2,359.2$
BridgerGas
Energy(MWh)Ͳ31,682.0 Ͳ841.22,031.31,644.45,468.711,764.312,098.511,976.8 Ͳ Ͳ77,507.3
Expense($x1000)Ͳ$1,041.00$ Ͳ$33.70$71.03$63.81$232.91$509.72$479.32$470.44$ Ͳ$ Ͳ$2,901.9$
LangleyGulch
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ13,739.9214,881.5214,264.2118,525.2219,048.7 Ͳ4,156.5784,616.0
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$372.87$6,575.90$7,051.62$3,593.79$6,735.09$ Ͳ$382.87$24,712.1$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ122.51,160.261.5 Ͳ Ͳ Ͳ Ͳ1,344.1
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$5.29$58.27$3.29$ Ͳ$ Ͳ$ Ͳ$ Ͳ$66.9$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ3,081.61,915.0 Ͳ Ͳ Ͳ Ͳ4,996.6
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$142.30$93.34$ Ͳ$ Ͳ$ Ͳ$ Ͳ$235.6$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 4,426.72,713.61,103.779.24,248.640,084.5120,153.290,450.637,707.525,501.469,415.048,800.1444,684.0
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 80,198.866,942.183,547.285,418.695,001.7130,170.7214,505.7178,936.0113,304.197,897.9138,681.1118,600.61,403,204.4
MarketExpense($x1000 204.15$78.30$26.37$2.19$100.50$1,075.30$3,722.78$2,935.59$1,147.54$806.69$2,283.39$1,842.28$14,225.1$
MarketExpenseͲNoWheeling($x1000 171.09$58.03$18.13$1.60$68.77$775.90$2,825.31$2,259.98$865.89$616.21$1,764.91$1,477.78$10,903.6$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 5,929.3$4,503.0$5,270.8$4,953.6$4,850.6$5,223.4$7,303.0$6,602.6$4,859.9$5,135.4$6,959.8$6,913.3$68,504.7$
Storage
BlackMesaBatteryEnergy(MWh (1,272.54)(1,028.43)(1,417.1)(1,157.3)(1,114.9)(850.9)(869.0)(851.2)(806.9)(868.9)(953.3)(1,102.7)(12,293.1)
80MWGridBatteryEnergy(MWh (2,574.08)(2,187.77)(2,813.6)(2,316.7)(2,306.7)(1,702.0)(1,736.9)(1,730.1)(1,612.5)(1,702.3)(1,794.8)(2,185.7)(24,663.2)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 9 of 76
11MWGridBatteryEnergy(MWh (344.73)(286.11)(359.2)(310.6)(302.3)(227.6)(239.2)(230.3)(215.2)(236.1)(237.3)(282.8)(3,271.4)
TotalStorage(MWh (4,191.4)(3,502.3)(4,589.8)(3,784.6)(3,723.9)(2,780.5)(2,845.1)(2,811.6)(2,634.6)(2,807.4)(2,985.4)(3,571.3)(40,227.8)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 139,766.9135,526.8212,265.2337,514.8304,080.8198,240.821,060.919,459.058,713.373,934.320,645.823,393.01,544,601.7
Revenue($x1000) 5,713.6$4,524.0$5,662.2$8,807.1$7,767.6$5,236.6$725.8$789.8$2,177.0$2,632.7$895.7$1,225.3$46,157.3$
RevenueͲNoWheeling($x1000) 4,669.7$3,511.7$4,076.7$6,286.1$5,496.3$3,755.8$568.5$644.4$1,738.4$2,080.5$741.5$1,050.5$34,620.2$
TotalEnergy 1,428,850.921,234,421.471,217,841.861,168,470.821,353,816.951,602,921.811,927,228.251,763,858.901,373,841.571,218,929.591,251,370.201,476,224.9717,017,777.31
TotalNPSE 20,616.5$20,960.8$15,694.6$14,470.6$16,497.3$26,807.6$43,207.0$43,374.7$30,432.5$32,045.5$30,456.9$33,679.8$339,780.9$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 10 of 76
1985
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,153,565.01,002,266.71,063,634.41,212,128.41,149,775.3936,564.5719,629.0594,046.5715,658.8521,946.7392,289.7543,294.210,004,799.2
BridgerCoal
Energy(MWh) 125,632.950,896.636,487.437,546.842,636.483,222.1163,605.3237,147.7206,339.5212,993.2241,092.5250,686.71,688,286.99
Expense($x1000) 3,929.37$1,749.20$1,365.32$1,385.60$1,771.96$2,999.83$5,333.70$7,450.48$6,543.23$6,755.10$7,543.96$7,840.28$54,668.03$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ35,652.142,850.21,212.440.541,036.047,058.8167,971.5
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,665.49$1,992.06$56.73$1.92$1,909.85$2,178.31$7,810.1$
BridgerGas
Energy(MWh)Ͳ29,200.7 Ͳ311.9135.1976.317,970.331,586.416,198.720,284.0 Ͳ Ͳ116,663.3
Expense($x1000)Ͳ$1,043.69$ Ͳ$13.55$5.12$41.22$833.50$1,491.44$698.76$867.34$ Ͳ$ Ͳ$4,994.6$
LangleyGulch
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ114,121.0215,734.3216,631.6176,180.7220,232.8178,553.2153,424.11,274,877.8
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$3,278.27$7,074.88$7,643.10$5,724.02$7,256.44$12,303.66$15,230.63$58,511.0$
Danskin
Energy(MWh) 383.4 Ͳ Ͳ Ͳ Ͳ1,492.2110,445.056,301.4250.2 Ͳ427.33,481.3172,780.7
Expense($x1000) 46.78$ Ͳ$ Ͳ$ Ͳ$ Ͳ$62.45$5,657.65$3,092.53$13.72$ Ͳ$47.14$522.26$9,442.5$
BennettMountain
Energy(MWh) 249.7 Ͳ Ͳ Ͳ Ͳ774.042,931.334,231.2 Ͳ Ͳ243.01,762.080,191.1
Expense($x1000) 29.84$ Ͳ$ Ͳ$ Ͳ$ Ͳ$35.11$2,216.92$1,896.95$ Ͳ$ Ͳ$26.52$259.06$4,464.4$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 7,732.32,436.21,723.854.34,628.993,583.9229,391.1185,873.221,325.430,716.6163,007.3230,356.0970,828.8
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 83,504.566,664.784,167.385,393.795,382.0183,670.1323,743.6274,358.596,922.0103,113.1232,273.3300,156.41,929,349.2
MarketExpense($x1000 355.91$76.17$45.56$1.56$112.51$2,467.18$7,619.27$6,956.89$728.01$1,078.40$6,266.96$9,915.96$35,624.4$
MarketExpenseͲNoWheeling($x1000 298.15$57.97$32.68$1.15$77.94$1,768.17$5,905.87$5,568.54$568.72$848.97$5,049.40$8,195.35$28,372.9$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 6,056.4$4,502.9$5,285.3$4,953.2$4,859.8$6,215.7$10,383.6$9,911.1$4,562.7$5,368.2$10,244.3$13,630.9$85,974.0$
Storage
BlackMesaBatteryEnergy(MWh (1,359.73)(1,078.49)(1,397.8)(1,171.1)(918.9)(875.1)(882.4)(875.3)(815.7)(1,003.6)(870.1)(1,068.9)(12,317.0)
80MWGridBatteryEnergy(MWh (2,731.69)(2,325.83)(2,790.3)(2,384.8)(1,857.9)(1,732.1)(1,757.2)(1,750.6)(1,718.2)(1,894.4)(1,682.9)(2,134.7)(24,760.6)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 11 of 76
11MWGridBatteryEnergy(MWh (371.15)(298.08)(355.4)(315.3)(238.0)(230.5)(241.1)(240.8)(218.5)(270.3)(220.2)(268.6)(3,268.0)
TotalStorage(MWh (4,462.6)(3,702.4)(4,543.5)(3,871.2)(3,014.8)(2,837.7)(2,880.6)(2,866.7)(2,752.4)(3,168.3)(2,773.1)(3,472.2)(40,345.5)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 132,940.9136,890.8208,121.0451,715.0244,783.235,512.43,893.910,334.871,093.078,778.69,722.43,284.81,387,070.6
Revenue($x1000) 5,931.2$4,762.7$5,828.2$12,511.9$6,363.6$1,183.1$194.9$558.2$2,818.4$3,063.6$508.2$187.1$43,911.0$
RevenueͲNoWheeling($x1000) 4,938.2$3,740.2$4,273.6$9,137.8$4,535.3$917.8$165.8$481.0$2,287.4$2,475.2$435.5$162.5$33,550.5$
TotalEnergy 1,428,850.931,234,421.481,217,841.841,168,470.781,353,816.901,602,921.831,927,228.261,763,858.901,373,841.601,218,929.601,251,370.201,476,224.9717,017,777.29
TotalNPSE 20,633.1$20,952.0$15,650.6$10,953.8$17,715.0$35,067.4$58,337.9$57,382.9$33,281.3$34,250.4$48,597.5$57,839.9$421,022.2$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 12 of 76
1986
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,014,443.61,004,353.31,232,902.01,175,608.21,242,534.91,222,624.4802,870.1774,467.9756,537.7551,371.1552,958.9838,261.211,168,933.4
BridgerCoal
Energy(MWh) 125,603.146,484.031,317.033,197.238,200.779,652.8140,328.9176,322.5146,579.8171,932.7213,836.6250,418.81,453,874.02
Expense($x1000) 3,928.51$1,622.28$1,216.60$1,260.49$1,644.30$2,897.09$4,663.71$5,699.72$4,823.10$5,573.18$6,759.37$7,832.57$47,920.92$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ17,883.925,159.0 Ͳ40.535,835.040,663.0119,702.9
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$843.56$1,179.05$ Ͳ$1.92$1,678.02$1,887.95$5,596.3$
BridgerGas
Energy(MWh)Ͳ35,589.0 Ͳ1,790.9865.42,634.018,729.832,605.45,415.329,702.6 Ͳ Ͳ127,332.5
Expense($x1000)Ͳ$1,174.89$ Ͳ$72.06$30.44$102.72$802.23$1,421.65$215.80$1,174.37$ Ͳ$ Ͳ$4,994.2$
LangleyGulch
Energy(MWh) 7,855.0 Ͳ Ͳ Ͳ Ͳ20,328.7215,611.5216,246.9144,086.4219,822.691,607.036,247.9951,805.9
Expense($x1000) 569.74$ Ͳ$ Ͳ$ Ͳ$ Ͳ$552.86$6,637.87$7,158.59$4,396.18$6,799.48$5,940.00$3,353.55$35,408.3$
Danskin
Energy(MWh) 255.9 Ͳ Ͳ Ͳ Ͳ122.582,925.59,355.7 Ͳ Ͳ Ͳ Ͳ92,659.6
Expense($x1000) 29.20$ Ͳ$ Ͳ$ Ͳ$ Ͳ$5.33$3,960.88$480.33$ Ͳ$ Ͳ$ Ͳ$ Ͳ$4,475.7$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ22,203.5702.2 Ͳ Ͳ Ͳ Ͳ22,905.7
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,084.16$35.88$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,120.0$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 36,694.43,738.552.7169.72,915.643,028.2235,212.1169,596.948,785.934,744.7121,460.277,227.7773,626.5
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 112,466.667,967.082,496.285,509.193,668.7133,114.4329,564.6258,082.3124,382.6107,141.2190,726.2147,028.11,732,146.9
MarketExpense($x1000 1,465.32$108.45$1.20$4.71$67.66$1,162.12$7,015.47$5,549.29$1,463.26$1,100.21$4,098.43$2,919.96$24,956.1$
MarketExpenseͲNoWheeling($x1000 1,191.24$80.53$0.81$3.44$45.88$840.73$5,258.59$4,282.51$1,098.86$840.69$3,191.20$2,343.12$19,177.6$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 6,949.5$4,525.5$5,253.4$4,955.5$4,827.7$5,288.2$9,736.3$8,625.1$5,092.9$5,359.9$8,386.1$7,778.7$76,778.7$
Storage
BlackMesaBatteryEnergy(MWh (1,216.85)(1,117.51)(1,483.7)(1,207.1)(1,077.6)(868.7)(870.3)(880.7)(694.7)(931.5)(834.7)(1,064.9)(12,248.3)
80MWGridBatteryEnergy(MWh (2,486.49)(2,232.65)(3,001.7)(2,393.4)(2,123.0)(1,719.8)(1,762.7)(1,760.3)(1,364.1)(1,850.6)(1,696.6)(2,128.0)(24,519.3)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 13 of 76
11MWGridBatteryEnergy(MWh (343.08)(293.13)(385.8)(316.4)(279.1)(228.5)(241.2)(242.7)(188.2)(249.2)(204.8)(273.7)(3,245.8)
TotalStorage(MWh (4,046.4)(3,643.3)(4,871.3)(3,916.9)(3,479.6)(2,816.9)(2,874.2)(2,883.7)(2,247.0)(3,031.3)(2,736.2)(3,466.6)(40,013.4)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 30,645.9142,314.5370,219.4412,393.9331,659.2173,189.74,307.416,106.035,837.980,315.98,808.116,045.81,621,843.7
Revenue($x1000) 1,449.5$4,796.1$9,169.8$10,872.8$7,985.2$4,700.1$209.9$816.7$1,372.2$3,255.7$421.9$862.0$45,911.8$
RevenueͲNoWheeling($x1000) 1,220.6$3,733.1$6,404.5$7,792.5$5,507.9$3,406.5$177.7$696.4$1,104.5$2,655.8$356.1$742.2$33,797.7$
TotalEnergy 1,428,850.941,234,421.491,217,841.831,168,470.821,353,816.931,602,921.821,927,228.251,763,858.891,373,841.581,218,929.591,251,370.181,476,225.0117,017,777.33
TotalNPSE 26,529.4$20,945.4$12,128.4$12,528.5$15,959.0$27,764.1$52,885.8$48,247.1$31,656.3$32,718.1$39,371.8$38,356.3$371,204.3$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 14 of 76
1987
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,003,291.6936,478.0821,438.3613,947.8694,452.3631,436.2634,293.2520,576.3535,778.8463,890.7388,369.4466,181.37,710,133.8
BridgerCoal
Energy(MWh) 125,632.968,053.245,292.756,605.156,526.2116,701.6175,085.8246,652.0239,552.2237,086.2242,600.0250,686.71,860,474.48
Expense($x1000) 3,929.37$2,242.66$1,618.58$1,933.77$2,171.63$3,963.49$5,664.11$7,724.11$7,499.63$7,448.64$7,587.37$7,840.28$59,623.64$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ41,664.441,842.617,068.1684.842,316.552,302.1196,000.1
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,938.87$1,947.15$801.26$31.53$1,966.93$2,414.38$9,105.9$
BridgerGas
Energy(MWh)Ͳ28,396.0 Ͳ4,965.01,411.92,417.322,833.924,340.312,322.036,658.9 Ͳ Ͳ133,345.4
Expense($x1000)Ͳ$1,074.03$ Ͳ$229.01$56.94$107.95$1,121.74$1,216.33$562.75$1,661.22$ Ͳ$ Ͳ$6,030.0$
LangleyGulch
Energy(MWh) 17,951.8 Ͳ Ͳ151,692.8216,765.7208,813.2215,639.5215,381.6212,840.2220,919.6179,380.5157,471.71,796,856.6
Expense($x1000) 1,419.10$ Ͳ$ Ͳ$4,894.57$6,027.17$6,271.82$7,410.31$7,967.18$7,239.44$7,626.85$12,953.84$16,425.82$78,236.1$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ47,176.9124,986.5109,593.7 Ͳ Ͳ197.711,826.6293,781.5
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,183.88$6,812.18$6,407.21$ Ͳ$ Ͳ$22.77$1,863.44$17,289.5$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ21,946.675,256.060,121.61,315.0 Ͳ243.02,265.4161,147.6
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,045.04$4,092.47$3,553.56$68.66$ Ͳ$27.90$350.50$9,138.1$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 39,038.09,554.663,005.534,786.545,397.5175,884.1246,952.5178,963.672,011.337,909.2164,030.0286,780.71,354,313.4
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 114,810.273,783.1145,449.1120,125.8136,150.6265,970.3341,304.9267,449.0147,607.9110,305.7233,296.0356,581.12,312,833.8
MarketExpense($x1000 1,714.24$289.83$1,616.35$997.77$1,132.23$5,087.39$8,635.99$6,998.80$2,676.84$1,440.72$6,583.79$13,184.06$50,358.0$
MarketExpenseͲNoWheeling($x1000 1,422.65$218.46$1,145.74$737.94$793.14$3,773.65$6,791.42$5,662.06$2,138.96$1,157.56$5,358.59$11,042.00$40,242.2$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 7,180.9$4,663.4$6,398.4$5,690.0$5,575.0$8,221.2$11,269.1$10,004.6$6,133.0$5,676.8$10,553.5$16,477.5$97,843.3$
Storage
BlackMesaBatteryEnergy(MWh (1,265.31)(1,006.39)(1,054.6)(1,101.2)(995.6)(852.7)(868.7)(868.1)(805.7)(896.1)(897.6)(1,088.2)(11,700.0)
80MWGridBatteryEnergy(MWh (2,521.19)(1,961.85)(2,071.9)(2,171.7)(1,977.5)(1,733.9)(1,736.9)(1,743.5)(1,675.7)(1,811.1)(1,755.1)(2,227.5)(23,387.9)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 15 of 76
11MWGridBatteryEnergy(MWh (348.22)(260.40)(269.0)(292.5)(262.8)(223.4)(239.2)(234.9)(216.2)(251.4)(231.3)(273.3)(3,102.5)
TotalStorage(MWh (4,134.7)(3,228.6)(3,395.5)(3,565.3)(3,236.0)(2,810.0)(2,844.8)(2,846.4)(2,697.5)(2,958.6)(2,883.9)(3,589.0)(38,190.3)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 31,619.895,046.237,160.063,976.661,939.89,182.05,283.39,158.624,869.869,923.810,099.9619.3418,879.2
Revenue($x1000) 1,717.1$3,691.4$1,321.4$2,463.3$1,955.4$323.9$271.8$475.7$1,069.5$3,141.3$563.8$40.9$17,035.3$
RevenueͲNoWheeling($x1000) 1,480.9$2,981.4$1,043.8$1,985.4$1,492.8$255.3$232.3$407.3$883.8$2,619.0$488.4$36.3$13,906.5$
TotalEnergy 1,428,850.931,234,421.471,217,841.861,168,470.771,353,816.921,602,921.821,927,228.241,763,858.901,373,841.571,218,929.601,251,370.191,476,224.9717,017,777.24
TotalNPSE 27,314.3$22,707.6$21,523.7$27,397.3$29,317.1$45,087.4$63,404.0$62,807.9$39,735.7$36,368.7$49,578.7$63,696.6$492,067.9$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 16 of 76
1988
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 537,905.8515,706.8400,960.2501,926.1497,614.3496,996.2617,091.2466,009.6475,857.0428,490.0374,706.7457,972.05,771,235.7
BridgerCoal
Energy(MWh) 125,632.9104,497.968,674.774,666.276,514.0135,603.6209,956.7250,462.5242,600.0249,339.5242,600.0250,686.72,031,234.74
Expense($x1000) 3,929.37$3,290.91$2,291.11$2,453.25$2,746.96$4,507.56$6,667.78$7,833.82$7,587.37$7,801.48$7,587.37$7,840.28$64,537.26$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ1,701.444,184.848,741.038,015.510,735.143,044.767,608.1254,152.2
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$80.55$2,052.89$2,251.95$1,775.21$500.93$1,999.38$3,096.85$11,763.5$
BridgerGas
Energy(MWh)Ͳ45,349.0 Ͳ673.8954.17,038.324,464.442,309.216,880.312,869.7 Ͳ Ͳ150,538.8
Expense($x1000)Ͳ$1,828.35$ Ͳ$32.99$40.90$335.76$1,281.44$2,254.53$822.01$621.32$ Ͳ$ Ͳ$7,217.3$
LangleyGulch
Energy(MWh) 202,790.8208,671.3164,696.9207,951.3229,231.8207,880.4215,408.7215,915.5213,506.4221,148.0180,745.9155,888.82,423,835.7
Expense($x1000) 16,388.38$6,113.44$10,379.68$7,081.47$6,720.99$6,592.88$7,821.84$8,442.27$7,672.44$8,067.24$13,775.52$17,334.78$116,390.9$
Danskin
Energy(MWh) 21,295.1386.724,937.4 Ͳ1,963.488,409.9128,984.7122,141.31,048.4 Ͳ889.012,480.9402,536.8
Expense($x1000) 2,883.64$18.91$2,395.22$ Ͳ$84.91$4,428.74$7,459.92$7,609.71$61.85$ Ͳ$109.17$2,089.71$27,141.8$
BennettMountain
Energy(MWh)7,240.1 Ͳ4,672.3 Ͳ675.845,330.878,979.967,480.14,772.9 Ͳ486.13,649.8213,287.7
Expense($x1000) 966.15$ Ͳ$440.20$ Ͳ$32.97$2,264.96$4,567.56$4,191.01$264.99$ Ͳ$59.20$599.49$13,386.5$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 259,337.6105,299.7235,097.454,126.8162,240.5217,765.3217,198.1185,104.296,771.753,791.2172,734.8279,122.92,038,590.1
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 335,109.8169,528.2317,540.9139,466.2252,993.6307,851.5311,550.6273,589.6172,368.3126,187.7242,000.8348,923.32,997,110.5
MarketExpense($x1000 13,363.61$3,672.04$6,962.46$1,582.91$4,449.98$6,879.32$8,270.68$7,852.49$3,885.40$2,205.81$7,274.39$13,717.34$80,116.4$
MarketExpenseͲNoWheeling($x1000 11,426.53$2,885.52$5,206.44$1,178.62$3,238.15$5,252.76$6,648.35$6,469.88$3,162.58$1,804.03$5,984.18$11,632.48$64,889.5$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 17,184.8$7,330.5$10,459.1$6,130.6$8,020.0$9,700.3$11,126.0$10,812.5$7,156.6$6,323.2$11,179.1$17,068.0$122,490.6$
Storage
BlackMesaBatteryEnergy(MWh (1,235.07)(1,031.00)(1,085.4)(1,076.4)(816.1)(826.3)(868.6)(863.5)(798.1)(910.4)(911.3)(1,056.7)(11,478.8)
80MWGridBatteryEnergy(MWh (2,471.21)(1,929.32)(2,171.3)(2,184.6)(1,653.6)(1,642.4)(1,736.9)(1,736.5)(1,613.8)(1,827.6)(1,746.2)(2,049.0)(22,762.3)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 17 of 76
11MWGridBatteryEnergy(MWh (325.05)(256.51)(277.6)(286.8)(218.5)(215.8)(239.2)(237.0)(216.7)(248.3)(222.4)(269.1)(3,012.7)
TotalStorage(MWh (4,031.3)(3,216.8)(3,534.2)(3,547.7)(2,688.2)(2,684.5)(2,844.7)(2,836.9)(2,628.6)(2,986.2)(2,879.9)(3,374.7)(37,253.8)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 11.232,487.66,323.641,341.217,127.95,657.64,840.29,859.823,503.349,120.18,173.9728.2199,174.5
Revenue($x1000) 0.9$1,572.3$246.9$1,585.0$614.4$234.0$243.9$607.9$1,121.0$1,947.4$445.8$47.1$8,666.6$
RevenueͲNoWheeling($x1000) 0.8$1,329.6$199.7$1,276.2$486.5$191.8$207.7$534.3$945.4$1,580.5$384.7$41.6$7,178.8$
TotalEnergy 1,428,850.941,234,421.471,217,841.851,168,470.811,353,816.931,602,921.831,927,228.231,763,858.911,373,841.581,218,929.611,251,370.191,476,224.9817,017,777.33
TotalNPSE 57,853.4$35,428.7$40,546.5$31,226.6$34,474.1$51,294.6$66,100.6$67,251.2$42,720.0$38,431.8$51,294.1$66,347.6$584,457.0$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 18 of 76
1989
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 554,645.1642,609.41,043,334.61,199,078.5937,308.5828,375.1738,030.8594,338.5580,406.8461,061.5388,305.5455,772.58,423,266.7
BridgerCoal
Energy(MWh) 125,632.887,336.940,187.445,961.068,255.2103,368.7175,722.0244,235.3239,207.4241,249.1242,570.4250,686.71,864,412.77
Expense($x1000) 3,929.37$2,797.31$1,471.74$1,627.62$2,509.29$3,579.68$5,682.45$7,654.53$7,489.68$7,568.51$7,586.52$7,840.28$59,736.98$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ42,726.843,872.110,046.6684.842,616.553,230.7193,298.9
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,986.22$2,037.61$466.87$31.53$1,980.29$2,455.88$8,964.2$
BridgerGas
Energy(MWh)Ͳ37,815.2 Ͳ1,171.72,557.71,676.423,412.426,772.531,874.627,379.6 Ͳ Ͳ152,660.0
Expense($x1000)Ͳ$1,440.12$ Ͳ$54.31$103.81$75.28$1,156.55$1,346.41$1,466.05$1,248.61$ Ͳ$ Ͳ$6,891.1$
LangleyGulch
Energy(MWh) 198,833.8206,651.4 Ͳ Ͳ Ͳ161,150.3215,488.7215,688.0213,398.1221,458.2177,420.4154,381.11,764,469.9
Expense($x1000) 15,390.29$5,767.62$ Ͳ$ Ͳ$ Ͳ$4,870.56$7,445.89$8,022.25$7,297.51$7,686.76$12,954.00$16,369.55$85,804.4$
Danskin
Energy(MWh) 24,096.9 Ͳ Ͳ Ͳ Ͳ1,897.275,647.569,855.8400.9 Ͳ197.712,154.6184,250.5
Expense($x1000) 3,098.29$ Ͳ$ Ͳ$ Ͳ$ Ͳ$85.24$4,101.31$4,078.81$22.38$ Ͳ$22.91$1,927.24$13,336.2$
BennettMountain
Energy(MWh) 1,997.3 Ͳ Ͳ Ͳ Ͳ1,918.949,527.222,875.6 Ͳ Ͳ243.03,020.579,582.5
Expense($x1000) 252.62$ Ͳ$ Ͳ$ Ͳ$ Ͳ$89.99$2,706.30$1,348.48$ Ͳ$ Ͳ$28.06$470.12$4,895.6$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 248,936.437,893.62,107.3148.525,773.5124,937.8214,778.5179,016.547,375.945,570.7165,462.9297,792.01,389,793.5
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 324,708.6102,122.184,550.885,487.9116,526.6215,024.0309,131.0267,501.9122,972.5117,967.2234,728.9367,592.42,348,313.9
MarketExpense($x1000 11,824.75$1,161.61$53.62$4.31$639.15$3,502.04$7,454.94$7,023.77$1,787.21$1,759.90$6,556.29$13,720.84$55,488.4$
MarketExpenseͲNoWheeling($x1000 9,965.36$878.57$37.88$3.20$446.64$2,568.84$5,850.69$5,686.64$1,433.34$1,419.52$5,320.39$11,496.53$45,107.6$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 15,723.6$5,323.5$5,290.5$4,955.2$5,228.5$7,016.3$10,328.4$10,029.2$5,427.3$5,938.7$10,515.3$16,932.1$102,708.7$
Storage
BlackMesaBatteryEnergy(MWh (1,186.86)(899.72)(1,368.9)(1,235.7)(901.2)(862.6)(875.7)(873.9)(845.7)(1,014.5)(925.0)(1,007.9)(11,997.8)
80MWGridBatteryEnergy(MWh (2,363.50)(1,805.74)(2,775.7)(2,442.0)(1,840.0)(1,711.0)(1,751.0)(1,727.3)(1,711.5)(2,029.0)(1,775.9)(1,979.9)(23,912.5)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 19 of 76
11MWGridBatteryEnergy(MWh (325.13)(243.61)(352.4)(330.9)(249.5)(226.6)(241.1)(233.2)(226.9)(277.9)(225.1)(245.3)(3,177.7)
TotalStorage(MWh (3,875.5)(2,949.1)(4,497.1)(4,008.6)(2,990.7)(2,800.1)(2,867.9)(2,834.4)(2,784.0)(3,321.4)(2,926.0)(3,233.2)(39,088.0)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 107.165,150.5191,951.3447,895.881,526.428,140.33,882.18,353.156,605.769,815.59,737.0498.7963,663.4
Revenue($x1000) 6.4$2,800.1$5,619.7$13,511.9$2,593.0$998.1$203.9$483.0$2,659.9$2,970.1$528.2$30.7$32,405.1$
RevenueͲNoWheeling($x1000) 5.6$2,313.4$4,186.0$10,166.4$1,984.1$787.9$174.9$420.6$2,237.1$2,448.7$455.5$26.9$25,207.1$
TotalEnergy 1,428,850.911,234,421.481,217,841.811,168,470.771,353,816.931,602,921.811,927,228.281,763,858.901,373,841.601,218,929.601,251,370.231,476,225.0117,017,777.33
TotalNPSE 54,889.7$30,947.4$15,970.7$10,238.5$22,690.3$38,337.0$58,570.2$58,497.7$38,010.4$36,569.0$49,589.1$64,330.0$485,837.9$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 20 of 76
1990
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 674,066.3641,743.9717,544.6679,737.8673,218.5757,882.1542,780.4493,669.8521,253.3438,890.0383,395.4441,092.96,965,274.7
BridgerCoal
Energy(MWh) 125,632.991,192.650,671.169,676.658,950.2114,253.1182,376.4248,143.7242,299.3242,997.1242,600.0250,686.71,919,479.59
Expense($x1000) 3,929.37$2,908.21$1,773.28$2,309.73$2,241.46$3,892.99$5,873.98$7,767.07$7,578.71$7,618.84$7,587.37$7,840.28$61,321.29$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ41,835.442,828.918,666.9684.839,587.455,412.1199,137.0
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,943.80$1,988.42$872.64$31.53$1,845.28$2,553.11$9,240.5$
BridgerGas
Energy(MWh)Ͳ36,479.8 Ͳ993.4562.44,267.622,479.729,708.420,014.019,902.1 Ͳ Ͳ134,407.4
Expense($x1000)Ͳ$1,398.12$ Ͳ$46.34$22.91$193.41$1,118.69$1,504.55$926.08$913.05$ Ͳ$ Ͳ$6,123.2$
LangleyGulch
Energy(MWh) 200,284.9208,772.718,159.6768.6224,601.6207,179.0215,986.2215,691.4213,564.6221,650.6178,479.9156,019.32,061,158.3
Expense($x1000) 15,536.09$5,857.90$1,128.37$26.61$6,310.50$6,292.02$7,503.17$8,066.45$7,342.81$7,735.19$13,067.18$16,545.72$95,412.0$
Danskin
Energy(MWh) 865.9 Ͳ Ͳ Ͳ Ͳ7,233.4140,865.3118,376.0 Ͳ1,905.8197.714,516.3283,960.5
Expense($x1000) 111.94$ Ͳ$ Ͳ$ Ͳ$ Ͳ$331.53$7,783.83$7,002.78$ Ͳ$108.83$23.05$2,316.56$17,678.5$
BennettMountain
Energy(MWh) 998.6 Ͳ Ͳ Ͳ Ͳ2,467.296,541.065,676.51,363.7 Ͳ243.02,517.1169,807.0
Expense($x1000) 127.05$ Ͳ$ Ͳ$ Ͳ$ Ͳ$116.36$5,313.64$3,902.70$71.19$ Ͳ$28.23$394.09$9,953.3$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 154,823.533,654.8121,362.471,005.049,694.9124,698.1290,828.0182,897.378,838.053,205.4170,390.5306,999.01,638,396.8
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 230,595.797,883.3203,805.9156,344.4140,448.0214,784.3385,180.5271,382.7154,434.6125,601.9239,656.5376,799.42,596,917.1
MarketExpense($x1000 7,228.68$1,033.09$3,240.65$1,997.16$1,232.47$3,509.86$10,815.01$7,296.07$3,030.22$2,100.38$6,751.44$14,459.47$62,694.5$
MarketExpenseͲNoWheeling($x1000 6,072.25$781.71$2,334.15$1,466.80$861.28$2,578.45$8,642.72$5,929.95$2,441.35$1,702.97$5,478.74$12,166.39$50,456.8$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 11,830.5$5,226.6$7,586.8$6,418.8$5,643.1$7,025.9$13,120.4$10,272.5$6,435.3$6,222.2$10,673.7$17,601.9$108,057.9$
Storage
BlackMesaBatteryEnergy(MWh (1,236.10)(951.08)(1,054.4)(1,064.0)(924.2)(853.8)(872.5)(866.7)(827.1)(924.4)(879.3)(1,069.9)(11,523.5)
80MWGridBatteryEnergy(MWh (2,436.03)(1,865.05)(2,091.7)(2,098.7)(1,829.6)(1,716.3)(1,750.9)(1,731.0)(1,671.2)(1,900.0)(1,717.1)(2,175.0)(22,982.5)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 21 of 76
11MWGridBatteryEnergy(MWh (339.74)(254.74)(265.3)(278.4)(242.7)(228.7)(239.2)(233.2)(219.4)(252.1)(223.4)(268.8)(3,045.3)
TotalStorage(MWh (4,011.9)(3,070.9)(3,411.4)(3,441.1)(2,996.5)(2,798.8)(2,862.5)(2,830.9)(2,717.7)(3,076.5)(2,819.8)(3,513.6)(37,551.3)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 2,500.664,566.015,145.224,285.154,653.422,797.72,246.28,694.429,961.651,892.37,920.8423.5285,086.8
Revenue($x1000) 159.9$2,771.4$562.8$957.7$1,719.2$842.5$117.0$489.1$1,386.2$2,105.7$421.3$26.0$11,558.6$
RevenueͲNoWheeling($x1000) 141.2$2,289.1$449.7$776.3$1,311.0$672.2$100.2$424.1$1,162.4$1,718.1$362.1$22.9$9,429.2$
TotalEnergy 1,428,850.951,234,421.471,217,841.821,168,470.771,353,816.901,602,921.811,927,228.241,763,858.881,373,841.601,218,929.611,251,370.201,476,224.9817,017,777.23
TotalNPSE 47,877.1$31,038.4$24,753.7$24,957.2$29,940.6$40,627.7$67,907.6$64,478.8$40,341.1$37,588.9$49,833.6$65,591.2$527,065.3$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 22 of 76
1991
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 497,530.1470,410.1401,941.8452,086.4593,144.5597,331.5663,446.4537,861.9509,034.1448,522.6370,598.5437,953.15,979,860.9
BridgerCoal
Energy(MWh) 125,632.9105,247.970,300.074,821.072,703.9130,988.0180,927.0248,124.7242,226.6247,199.9242,600.0250,686.71,991,458.37
Expense($x1000) 3,929.37$3,312.48$2,337.85$2,457.70$2,637.29$4,374.68$5,832.20$7,766.53$7,576.61$7,739.87$7,587.37$7,840.28$63,392.23$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ162.040,089.942,934.227,973.6674.541,123.460,203.8213,282.9
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$7.67$1,868.69$1,995.81$1,306.08$31.07$1,913.74$2,766.70$9,895.5$
BridgerGas
Energy(MWh)Ͳ42,394.4 Ͳ2,377.1614.75,208.012,736.615,197.714,589.321,106.9 Ͳ Ͳ114,224.8
Expense($x1000)Ͳ$1,670.81$ Ͳ$113.93$25.68$242.53$651.22$790.80$693.85$995.72$ Ͳ$ Ͳ$5,184.5$
LangleyGulch
Energy(MWh) 199,094.3209,024.9168,140.2212,228.3228,755.4207,881.7215,510.1215,164.5213,172.4221,382.8178,732.6156,335.22,425,422.1
Expense($x1000) 15,873.97$5,999.16$10,258.20$7,076.69$6,572.12$6,458.27$7,663.07$8,237.81$7,501.92$7,907.84$13,400.47$16,975.61$113,925.1$
Danskin
Energy(MWh) 43,240.9759.7784.4493.0 Ͳ54,002.2120,712.0100,347.0 Ͳ Ͳ634.216,317.6337,291.0
Expense($x1000) 5,718.50$35.77$73.69$27.83$ Ͳ$2,602.14$6,813.65$6,102.17$ Ͳ$ Ͳ$77.05$2,674.57$24,125.4$
BennettMountain
Energy(MWh) 7,240.11,736.23,971.4225.6 Ͳ24,333.166,085.635,022.11,363.7 Ͳ243.04,027.4144,248.3
Expense($x1000) 944.55$78.07$365.89$12.60$ Ͳ$1,188.21$3,736.68$2,128.37$72.96$ Ͳ$28.94$646.64$9,202.9$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 281,241.6137,741.3254,025.789,961.398,375.4183,656.1234,984.2197,083.584,332.747,777.3179,513.8301,818.02,090,510.9
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 357,013.8201,969.8336,469.2175,300.7189,128.5273,742.3329,336.7285,568.9159,929.3120,173.8248,779.8371,618.43,049,031.3
MarketExpense($x1000 13,912.68$4,802.65$7,548.21$2,760.42$2,533.24$5,504.42$8,468.48$7,889.17$3,284.84$1,926.79$7,381.00$14,623.95$80,635.9$
MarketExpenseͲNoWheeling($x1000 11,811.99$3,773.81$5,650.81$2,088.47$1,798.44$4,132.63$6,713.30$6,417.09$2,654.93$1,569.93$6,040.15$12,369.57$65,021.1$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 17,570.2$8,218.7$10,903.4$7,040.5$6,580.3$8,580.1$11,191.0$10,759.7$6,648.9$6,089.1$11,235.1$17,805.1$122,622.2$
Storage
BlackMesaBatteryEnergy(MWh (1,188.59)(844.56)(1,165.2)(1,064.1)(985.7)(861.3)(875.6)(868.2)(803.8)(934.1)(848.6)(1,110.3)(11,549.9)
80MWGridBatteryEnergy(MWh (2,320.77)(1,704.55)(2,256.5)(2,093.5)(1,950.3)(1,719.6)(1,750.9)(1,736.5)(1,645.6)(1,853.5)(1,738.1)(2,211.7)(22,981.4)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 23 of 76
11MWGridBatteryEnergy(MWh (310.86)(220.59)(292.8)(274.7)(260.8)(226.3)(241.0)(235.0)(220.5)(254.6)(215.9)(284.6)(3,037.6)
TotalStorage(MWh (3,820.2)(2,769.7)(3,714.4)(3,432.2)(3,196.8)(2,807.2)(2,867.5)(2,839.6)(2,669.9)(3,042.2)(2,802.6)(3,606.6)(37,569.0)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh)Ͳ20,337.76,267.934,305.341,019.48,371.63,040.63,429.326,702.259,354.76,489.5428.9209,746.9
Revenue($x1000)Ͳ$987.4$248.7$1,304.0$1,372.5$327.4$169.3$171.5$1,227.3$2,463.3$354.0$27.0$8,652.4$
RevenueͲNoWheeling($x1000)Ͳ$835.5$201.9$1,047.8$1,066.1$264.9$146.6$145.8$1,027.8$2,020.0$305.5$23.8$7,085.7$
TotalEnergy 1,428,850.961,234,421.491,217,841.851,168,470.771,353,816.901,602,921.821,927,228.251,763,858.891,373,841.571,218,929.601,251,370.181,476,224.9817,017,777.26
TotalNPSE 60,538.6$36,746.5$38,518.5$32,538.6$31,884.7$46,744.2$62,954.2$62,073.1$41,073.6$37,365.3$50,918.8$67,047.5$569,970.2$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 24 of 76
1992
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 567,350.4598,175.8466,006.8464,625.5447,567.3493,021.3491,130.2380,378.8345,001.1388,447.4372,879.0413,738.05,428,321.3
BridgerCoal
Energy(MWh) 125,632.9104,507.968,944.272,570.585,839.9135,834.5217,757.1250,532.5242,600.0249,998.5242,600.0250,686.72,047,504.78
Expense($x1000) 3,929.37$3,291.20$2,298.86$2,392.97$3,015.38$4,514.20$6,892.31$7,835.84$7,587.37$7,820.47$7,587.37$7,840.28$65,005.62$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ2,228.045,484.747,659.537,180.512,026.844,062.065,642.3254,405.3
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$105.48$2,109.49$2,206.43$1,737.99$558.50$2,044.73$3,009.23$11,777.6$
BridgerGas
Energy(MWh)Ͳ44,197.3 Ͳ1,369.01,268.58,019.128,835.739,684.615,991.318,392.7 Ͳ Ͳ157,758.2
Expense($x1000)Ͳ$1,782.18$ Ͳ$67.15$54.45$382.22$1,510.17$2,115.02$778.66$887.62$ Ͳ$ Ͳ$7,577.5$
LangleyGulch
Energy(MWh) 200,832.4208,721.8166,054.5211,919.7230,404.8207,973.1215,441.5215,410.0213,875.1221,881.6183,296.3155,172.52,430,983.1
Expense($x1000) 16,304.33$6,114.85$10,420.20$7,215.28$6,753.76$6,595.69$7,823.00$8,423.02$7,685.28$8,093.19$13,873.25$17,297.56$116,599.4$
Danskin
Energy(MWh) 14,722.8 Ͳ63.8 Ͳ3,384.284,729.6148,180.3136,060.328,161.0394.3197.721,827.6437,721.6
Expense($x1000) 1,987.47$ Ͳ$5.99$ Ͳ$152.52$4,254.88$8,616.72$8,543.47$1,536.86$23.65$24.21$3,651.19$28,797.0$
BennettMountain
Energy(MWh)8,488.4 Ͳ1,401.7 Ͳ2,129.943,324.396,235.193,615.327,878.0 Ͳ486.14,782.5278,341.2
Expense($x1000) 1,132.73$ Ͳ$132.06$ Ͳ$99.82$2,153.48$5,554.81$5,860.08$1,585.05$ Ͳ$59.20$785.54$17,362.8$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 237,229.151,130.3202,031.078,661.4193,212.9225,424.0290,552.1230,485.2166,927.577,264.9171,218.0315,090.32,239,226.5
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 313,001.3115,358.8284,474.5164,000.8283,966.0315,510.2384,904.6318,970.6242,524.1149,661.4240,484.0384,890.73,197,746.9
MarketExpense($x1000 12,017.16$1,719.28$5,981.26$2,407.60$5,404.74$7,092.64$11,720.36$9,743.25$6,641.21$3,227.88$7,277.39$15,478.23$88,711.0$
MarketExpenseͲNoWheeling($x1000 10,245.22$1,337.37$4,472.22$1,820.05$3,961.57$5,408.87$9,550.13$8,021.68$5,394.37$2,650.76$5,998.51$13,124.71$71,985.5$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 16,003.5$5,782.3$9,724.9$6,772.1$8,743.4$9,856.4$14,027.8$12,364.2$9,388.4$7,170.0$11,193.4$18,560.3$129,586.6$
Storage
BlackMesaBatteryEnergy(MWh (1,221.57)(1,015.92)(1,192.9)(966.2)(827.7)(852.0)(882.7)(882.3)(813.1)(900.8)(922.3)(1,038.2)(11,515.6)
80MWGridBatteryEnergy(MWh (2,457.27)(1,994.49)(2,317.0)(1,940.7)(1,683.7)(1,711.0)(1,765.0)(1,764.7)(1,637.0)(1,817.7)(1,811.8)(2,013.1)(22,913.5)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 25 of 76
11MWGridBatteryEnergy(MWh (333.42)(268.32)(299.6)(261.8)(210.9)(225.4)(243.0)(238.9)(211.8)(240.9)(242.4)(253.8)(3,030.2)
TotalStorage(MWh (4,012.3)(3,278.7)(3,809.5)(3,168.7)(2,722.3)(2,788.4)(2,890.7)(2,885.8)(2,661.9)(2,959.4)(2,976.6)(3,305.2)(37,459.3)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 84.059,247.411,511.431,522.311,707.45,381.52,142.45,473.611,632.341,179.77,609.0328.4187,819.3
Revenue($x1000) 5.9$2,744.4$488.5$1,162.4$405.0$229.3$112.1$340.2$603.4$1,713.4$415.1$19.3$8,239.0$
RevenueͲNoWheeling($x1000) 5.3$2,301.8$402.5$926.9$317.6$189.1$96.1$299.3$516.5$1,405.8$358.3$16.9$6,836.1$
TotalEnergy 1,428,850.921,234,421.471,217,841.831,168,470.791,353,816.911,602,921.811,927,228.261,763,858.901,373,841.611,218,929.601,251,370.191,476,224.9917,017,777.28
TotalNPSE 55,853.4$32,645.0$36,921.6$32,398.4$35,856.1$51,250.9$71,789.2$71,471.3$48,196.7$39,905.0$51,397.2$69,490.3$598,578.3$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 26 of 76
1993
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 471,058.7511,285.8820,399.11,002,773.41,095,890.31,071,254.0761,464.4591,165.2547,779.4458,643.4375,618.4491,635.48,198,967.4
BridgerCoal
Energy(MWh) 125,632.9100,134.953,856.842,944.847,089.2100,140.4174,039.0248,542.0242,588.7238,771.2242,553.8250,686.71,866,980.37
Expense($x1000) 3,929.37$3,165.42$1,864.91$1,540.86$1,900.13$3,486.79$5,633.99$7,778.53$7,587.04$7,497.12$7,586.04$7,840.28$59,810.48$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ40,803.544,801.818,375.0684.841,208.554,015.0200,010.2
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,900.49$2,077.71$859.52$31.53$1,917.54$2,490.84$9,283.4$
BridgerGas
Energy(MWh)Ͳ48,539.0 Ͳ171.0 Ͳ2,812.918,026.130,853.617,152.334,225.3 Ͳ Ͳ151,780.2
Expense($x1000)Ͳ$1,848.24$ Ͳ$7.90$ Ͳ$126.70$890.60$1,551.93$788.89$1,561.19$ Ͳ$ Ͳ$6,775.5$
LangleyGulch
Energy(MWh) 202,181.6208,970.8 Ͳ Ͳ Ͳ39,615.8215,269.3215,964.2213,006.8220,774.9175,879.8155,035.71,646,699.0
Expense($x1000) 15,559.67$5,842.50$ Ͳ$ Ͳ$ Ͳ$1,209.51$7,452.09$8,046.93$7,297.82$7,677.77$12,925.58$16,433.53$82,445.4$
Danskin
Energy(MWh) 57,250.81,109.0 Ͳ Ͳ Ͳ Ͳ80,781.057,858.0 Ͳ Ͳ65.12,823.8199,887.8
Expense($x1000) 7,335.42$49.77$ Ͳ$ Ͳ$ Ͳ$ Ͳ$4,396.48$3,381.16$ Ͳ$ Ͳ$7.87$450.46$15,621.2$
BennettMountain
Energy(MWh) 11,609.1 Ͳ Ͳ Ͳ Ͳ774.031,882.931,506.5811.7 Ͳ1,579.72,265.480,429.3
Expense($x1000) 1,471.23$ Ͳ$ Ͳ$ Ͳ$ Ͳ$37.15$1,748.88$1,854.79$41.32$ Ͳ$182.75$353.29$5,689.4$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 286,657.9108,197.567,498.31,725.89,068.849,884.5216,324.4176,392.357,810.540,582.1177,977.5271,564.81,463,684.5
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 362,430.1172,426.0149,941.887,065.299,821.9139,970.7310,676.9264,877.6133,407.2112,978.6247,243.5341,365.32,422,204.9
MarketExpense($x1000 14,158.00$3,603.20$1,795.58$49.63$235.36$1,440.08$7,402.06$7,004.30$2,197.14$1,566.97$7,147.15$12,563.52$59,163.0$
MarketExpenseͲNoWheeling($x1000 12,016.86$2,795.04$1,291.41$36.74$167.62$1,067.48$5,786.26$5,686.77$1,765.33$1,263.85$5,817.78$10,535.11$48,230.2$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 17,775.1$7,240.0$6,544.0$4,988.8$4,949.5$5,515.0$10,263.9$10,029.3$5,759.3$5,783.0$11,012.7$15,970.7$105,831.3$
Storage
BlackMesaBatteryEnergy(MWh (1,304.52)(923.93)(1,212.7)(1,204.3)(894.4)(845.7)(875.2)(863.9)(787.0)(912.5)(894.1)(1,080.3)(11,798.7)
80MWGridBatteryEnergy(MWh (2,579.22)(1,893.00)(2,417.2)(2,440.9)(1,794.5)(1,694.4)(1,750.6)(1,741.4)(1,605.1)(1,838.5)(1,779.9)(2,123.0)(23,657.7)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 27 of 76
11MWGridBatteryEnergy(MWh (347.60)(246.35)(314.5)(321.3)(233.1)(219.6)(240.8)(238.9)(215.7)(248.5)(227.8)(276.5)(3,130.5)
TotalStorage(MWh (4,231.3)(3,063.3)(3,944.4)(3,966.4)(2,922.0)(2,759.7)(2,866.7)(2,844.2)(2,607.8)(2,999.5)(2,901.8)(3,479.9)(38,586.9)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh)Ͳ30,966.948,628.8249,193.3199,748.669,338.17,140.28,772.731,596.466,415.17,827.71,240.8720,868.5
Revenue($x1000)Ͳ$1,406.7$1,669.6$7,496.4$5,346.5$2,194.8$384.0$501.4$1,428.3$2,982.6$428.8$78.1$23,917.3$
RevenueͲNoWheeling($x1000)Ͳ$1,175.4$1,306.3$5,635.1$3,854.5$1,676.9$330.7$435.9$1,192.3$2,486.5$370.4$68.8$18,532.8$
TotalEnergy 1,428,850.941,234,421.471,217,841.811,168,470.811,353,816.911,602,921.811,927,228.241,763,858.881,373,841.601,218,929.601,251,370.191,476,224.9817,017,777.24
TotalNPSE 62,572.8$35,158.1$21,567.5$16,154.4$18,944.8$31,798.3$57,269.5$58,682.4$39,406.1$36,633.0$50,233.8$61,826.6$495,631.7$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 28 of 76
1994
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 958,118.7815,981.8638,515.2573,505.8599,491.0586,018.3599,142.7451,620.7441,352.9418,703.9374,381.1455,211.16,912,043.2
BridgerCoal
Energy(MWh) 125,632.995,420.658,899.468,423.275,820.0119,579.4187,037.3249,142.5242,600.0243,466.9242,600.0250,686.71,959,308.91
Expense($x1000) 3,929.37$3,029.82$2,009.94$2,273.69$2,727.01$4,046.31$6,008.09$7,795.82$7,587.37$7,632.35$7,587.37$7,840.28$62,467.42$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ243.144,710.648,224.043,518.011,614.243,763.458,829.0251,023.7
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$11.51$2,076.33$2,232.93$2,020.48$540.11$2,031.42$2,705.42$11,624.0$
BridgerGas
Energy(MWh)Ͳ23,126.1 Ͳ4,413.6463.13,068.523,591.843,012.337,344.627,305.5 Ͳ Ͳ162,325.5
Expense($x1000)Ͳ$907.61$ Ͳ$210.80$19.32$142.25$1,201.70$2,230.16$1,770.39$1,283.35$ Ͳ$ Ͳ$7,765.6$
LangleyGulch
Energy(MWh) 27,139.333,124.3115,076.9160,655.6229,487.2207,232.8215,682.8216,068.5214,614.3221,497.2183,000.2157,899.21,981,478.3
Expense($x1000) 2,232.82$950.52$7,180.13$5,342.95$6,569.45$6,416.60$7,641.93$8,242.04$7,524.35$7,883.83$13,509.90$16,991.02$90,485.5$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ56,837.3130,208.8129,192.59,406.1 Ͳ263.713,304.1339,212.4
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,730.78$7,340.94$7,812.88$495.56$ Ͳ$31.41$2,168.25$20,579.8$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ27,622.786,480.565,712.54,784.4 Ͳ486.13,272.2188,358.3
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,362.52$4,858.35$3,967.11$263.77$ Ͳ$57.66$523.39$11,032.8$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 63,219.232,469.0110,100.144,546.192,737.6200,999.7248,168.8195,050.4110,046.658,296.8170,714.9288,229.21,614,578.3
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 138,991.496,697.5192,543.7129,885.5183,490.6291,085.9342,521.3283,535.8185,643.3130,693.3239,980.9358,029.62,573,098.7
MarketExpense($x1000 2,852.12$1,021.06$2,960.55$1,312.32$2,398.12$5,940.16$9,213.81$8,152.15$4,358.07$2,324.63$7,062.12$13,745.40$61,340.5$
MarketExpenseͲNoWheeling($x1000 2,379.91$778.54$2,138.17$979.59$1,705.43$4,438.83$7,360.15$6,695.25$3,536.09$1,889.19$5,786.99$11,592.52$49,280.7$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 8,138.2$5,223.5$7,390.8$5,931.6$6,487.3$8,886.3$11,837.8$11,037.8$7,530.1$6,408.4$10,981.9$17,028.1$106,881.8$
Storage
BlackMesaBatteryEnergy(MWh (1,247.47)(834.87)(1,133.4)(1,093.8)(989.0)(825.0)(875.6)(882.7)(840.9)(939.6)(941.1)(1,099.9)(11,703.1)
80MWGridBatteryEnergy(MWh (2,508.98)(1,622.99)(2,286.0)(2,119.3)(1,958.2)(1,672.9)(1,750.9)(1,764.7)(1,661.7)(1,896.3)(1,920.1)(2,174.9)(23,336.9)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 29 of 76
11MWGridBatteryEnergy(MWh (334.28)(231.99)(278.5)(293.8)(268.3)(219.5)(239.1)(238.9)(223.8)(258.0)(247.5)(277.4)(3,110.9)
TotalStorage(MWh (4,090.7)(2,689.9)(3,697.8)(3,506.9)(3,215.4)(2,717.4)(2,865.6)(2,886.2)(2,726.4)(3,093.9)(3,108.7)(3,552.2)(38,150.9)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 19,859.753,225.029,712.853,582.345,405.76,500.53,574.09,670.537,620.253,523.67,947.2573.1321,194.5
Revenue($x1000) 1,148.3$2,199.4$1,174.8$2,177.8$1,531.5$263.8$174.3$578.1$1,933.6$2,386.7$431.1$36.9$14,036.4$
RevenueͲNoWheeling($x1000) 999.9$1,801.9$952.9$1,777.6$1,192.3$215.2$147.6$505.9$1,652.6$1,986.9$371.8$32.6$11,637.3$
TotalEnergy 1,428,850.931,234,421.471,217,841.831,168,470.791,353,816.911,602,921.801,927,228.271,763,858.881,373,841.591,218,929.581,251,370.201,476,224.9717,017,777.22
TotalNPSE 29,654.1$26,330.9$30,234.2$28,694.5$31,713.4$46,950.4$66,157.9$67,204.1$43,759.0$38,426.3$50,798.7$65,585.1$527,907.5$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 30 of 76
1995
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 629,205.8740,356.2872,859.41,083,299.81,180,796.01,091,883.4852,501.1773,838.5679,112.0439,483.2374,410.0937,105.39,654,850.7
BridgerCoal
Energy(MWh) 125,632.959,086.139,493.838,241.854,178.080,210.6154,969.3216,543.0188,485.0219,823.9237,133.3250,638.21,664,435.73
Expense($x1000) 3,929.37$1,984.75$1,451.79$1,405.59$2,104.15$2,913.16$5,085.14$6,857.38$6,029.21$6,951.70$7,429.97$7,838.89$53,981.10$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ39,019.0 Ͳ162.041,731.622,096.0103,130.1
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,818.26$ Ͳ$7.67$1,940.85$1,024.25$4,796.8$
BridgerGas
Energy(MWh)Ͳ38,532.9 Ͳ2,431.7877.81,450.217,104.132,285.317,561.943,204.1 Ͳ Ͳ153,448.1
Expense($x1000)Ͳ$1,342.66$ Ͳ$103.40$32.53$59.49$773.52$1,485.58$738.61$1,802.89$ Ͳ$ Ͳ$6,338.7$
LangleyGulch
Energy(MWh) 191,482.2202,785.4 Ͳ Ͳ Ͳ42,889.1215,290.8216,212.6209,125.1221,412.7181,688.612,005.31,492,891.8
Expense($x1000) 13,997.29$5,280.46$ Ͳ$ Ͳ$ Ͳ$1,216.21$6,925.74$7,481.51$6,663.17$7,154.08$11,953.75$1,145.58$61,817.8$
Danskin
Energy(MWh) 10,632.4 Ͳ Ͳ Ͳ Ͳ60.938,288.5463.0246.7 Ͳ1,018.9 Ͳ50,710.4
Expense($x1000) 1,254.44$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2.84$1,912.08$26.62$12.72$ Ͳ$110.00$ Ͳ$3,318.7$
BennettMountain
Energy(MWh) 2,246.9 Ͳ Ͳ Ͳ Ͳ1,241.756,340.73,111.8 Ͳ Ͳ972.1 Ͳ63,913.3
Expense($x1000)262.96$ Ͳ$ Ͳ$ Ͳ$ Ͳ$51.84$2,890.79$163.75$ Ͳ$ Ͳ$103.88$ Ͳ$3,473.2$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 196,664.38,619.343,414.3139.05,495.151,651.2203,039.1128,868.027,931.061,201.2178,345.251,709.0957,076.6
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 272,436.572,847.8125,857.885,478.496,248.2141,737.4297,391.6217,353.4103,527.6133,597.7247,611.2121,509.41,915,596.9
MarketExpense($x1000 8,225.46$242.24$1,069.25$3.92$139.14$1,420.74$6,256.14$4,540.50$899.30$2,137.66$6,788.08$2,105.88$33,828.3$
MarketExpenseͲNoWheeling($x1000 6,756.51$177.86$744.97$2.88$98.10$1,034.94$4,739.57$3,577.94$690.67$1,680.53$5,455.96$1,719.65$26,679.6$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 12,514.8$4,622.8$5,997.6$4,954.9$4,879.9$5,482.4$9,217.3$7,920.5$4,684.7$6,199.7$10,650.9$7,155.2$84,280.7$
Storage
BlackMesaBatteryEnergy(MWh (1,106.23)(1,009.51)(1,292.8)(1,187.5)(1,011.9)(854.5)(897.6)(875.6)(791.9)(902.0)(932.7)(1,191.3)(12,053.5)
80MWGridBatteryEnergy(MWh (2,187.82)(2,024.87)(2,585.8)(2,393.3)(2,038.7)(1,720.6)(1,779.4)(1,738.0)(1,616.7)(1,786.5)(1,823.6)(2,426.0)(24,121.2)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 31 of 76
11MWGridBatteryEnergy(MWh (307.03)(272.57)(338.2)(321.8)(268.5)(228.0)(245.6)(236.9)(224.7)(248.3)(242.9)(312.2)(3,246.8)
TotalStorage(MWh (3,601.1)(3,307.0)(4,216.9)(3,902.7)(3,319.1)(2,803.2)(2,922.6)(2,850.5)(2,633.3)(2,936.7)(2,999.1)(3,929.6)(39,421.5)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 2,103.7101,866.162,369.5325,754.4288,650.174,200.06,027.422,023.856,508.058,083.48,147.246,318.11,052,051.7
Revenue($x1000) 124.9$3,894.0$1,957.1$9,220.4$7,689.8$2,124.2$294.2$1,107.5$2,317.8$2,570.9$422.9$2,146.3$33,869.8$
RevenueͲNoWheeling($x1000) 109.2$3,133.1$1,491.2$6,787.2$5,533.8$1,569.9$249.2$943.0$1,895.7$2,137.0$362.0$1,800.3$26,011.6$
TotalEnergy 1,428,850.951,234,421.481,217,841.841,168,470.801,353,816.941,602,921.831,927,228.241,763,858.911,373,841.591,218,929.581,251,370.221,476,224.9817,017,777.36
TotalNPSE 48,335.9$27,755.6$20,320.4$14,356.8$16,768.6$31,219.8$51,877.4$49,109.5$34,311.2$36,610.2$48,796.6$33,383.2$420,703.3$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 32 of 76
1996
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,250,147.61,050,397.21,097,538.91,040,497.61,113,862.51,211,285.7831,576.1796,940.8673,648.9505,588.0417,966.8841,480.610,830,930.5
BridgerCoal
Energy(MWh) 107,324.536,762.129,523.434,083.239,635.767,466.5126,275.0165,447.1149,456.8165,957.3212,121.2247,567.91,381,620.54
Expense($x1000) 3,402.77$1,342.65$1,165.02$1,285.98$1,685.61$2,546.36$4,259.18$5,386.74$4,905.90$5,401.18$6,709.99$7,750.47$45,841.85$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ10,505.15,620.8 Ͳ40.535,745.230,373.882,406.9
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$495.94$263.32$ Ͳ$1.92$1,674.01$1,411.38$3,852.3$
BridgerGas
Energy(MWh)Ͳ34,025.5 Ͳ4,398.72,650.54,028.817,535.142,079.913,367.216,449.2 Ͳ Ͳ134,534.8
Expense($x1000)Ͳ$1,067.26$ Ͳ$168.31$88.59$149.38$713.25$1,742.09$505.48$617.05$ Ͳ$ Ͳ$5,051.4$
LangleyGulch
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ23,882.9216,216.5216,676.4214,936.2223,602.6177,596.741,890.41,114,801.7
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$622.35$6,370.63$6,862.29$6,266.57$6,614.90$10,759.34$3,669.72$41,165.8$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ82,001.41,337.31,688.81,948.6197.7 Ͳ87,173.8
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$3,742.56$63.06$82.10$96.30$19.16$ Ͳ$4,003.2$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ9,039.44,037.4 Ͳ Ͳ486.1 Ͳ13,562.9
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$420.84$195.16$ Ͳ$ Ͳ$47.21$ Ͳ$663.2$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 1,353.93,034.2391.7384.55,550.641,735.0241,638.8175,610.155,903.857,038.9173,258.581,401.8837,301.8
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 77,126.067,262.882,835.285,723.996,303.7131,821.2335,991.3264,095.5131,500.5129,435.4242,524.6151,202.21,795,822.2
MarketExpense($x1000 53.43$87.47$9.24$10.40$129.34$1,134.70$6,938.17$5,538.24$1,627.21$1,778.83$5,874.53$2,986.84$26,168.4$
MarketExpenseͲNoWheeling($x1000 43.32$64.81$6.31$7.53$87.88$822.97$5,133.29$4,226.55$1,209.65$1,352.79$4,580.40$2,378.82$19,914.3$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 5,801.6$4,509.7$5,258.9$4,959.5$4,869.7$5,270.5$9,611.0$8,569.1$5,203.6$5,872.0$9,775.3$7,814.4$77,515.4$
Storage
BlackMesaBatteryEnergy(MWh (1,175.63)(1,139.91)(1,436.8)(1,265.2)(1,065.1)(842.4)(882.3)(872.7)(777.3)(839.2)(890.7)(1,053.5)(12,240.9)
80MWGridBatteryEnergy(MWh (2,351.24)(2,343.56)(2,914.1)(2,518.3)(2,162.9)(1,682.7)(1,751.1)(1,736.5)(1,560.1)(1,695.2)(1,793.7)(2,087.5)(24,596.9)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 33 of 76
11MWGridBatteryEnergy(MWh (333.07)(304.37)(363.1)(341.1)(274.5)(218.9)(241.4)(236.9)(205.7)(233.2)(227.1)(259.2)(3,238.6)
TotalStorage(MWh (3,859.9)(3,787.8)(4,713.9)(4,124.6)(3,502.5)(2,744.0)(2,874.9)(2,846.1)(2,543.2)(2,767.7)(2,911.6)(3,400.3)(40,076.5)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 204,806.3176,224.2233,559.0280,784.1208,819.1153,270.93,328.819,437.043,138.343,590.410,307.316,007.91,393,273.2
Revenue($x1000) 7,471.0$5,477.1$5,894.5$7,517.1$5,095.4$3,928.9$151.2$933.5$1,676.2$1,612.1$466.9$774.8$40,998.6$
RevenueͲNoWheeling($x1000) 5,941.2$4,160.8$4,150.0$5,419.8$3,535.7$2,784.1$126.3$788.3$1,354.0$1,286.5$389.9$655.2$30,591.8$
TotalEnergy 1,428,850.941,234,421.471,217,841.831,168,470.781,353,816.911,602,921.861,927,228.271,763,858.861,373,841.591,218,929.591,251,370.211,476,224.9817,017,777.29
TotalNPSE 18,235.3$19,861.4$15,357.6$16,010.1$18,990.3$28,277.6$50,829.2$46,611.7$33,788.0$34,056.2$45,548.3$38,236.8$376,209.3$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 34 of 76
1997
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,300,991.31,093,940.31,071,701.81,018,577.91,118,426.11,192,855.51,041,480.5866,665.1730,894.9561,326.0677,594.2873,137.511,547,591.0
BridgerCoal
Energy(MWh) 100,183.335,338.534,686.132,018.438,048.569,662.3120,325.1154,997.0121,645.8150,778.1193,448.3244,918.81,296,050.08
Expense($x1000) 3,197.37$1,301.71$1,313.51$1,226.59$1,639.88$2,609.55$4,087.93$5,085.89$4,105.45$4,964.22$6,172.49$7,674.20$43,378.79$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ5,602.1 Ͳ40.533,122.430,763.969,650.4
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$263.72$ Ͳ$1.92$1,553.18$1,434.61$3,259.2$
BridgerGas
Energy(MWh)Ͳ35,312.0 Ͳ3,740.82,612.42,679.716,145.436,424.823,622.817,730.9 Ͳ Ͳ138,268.8
Expense($x1000)Ͳ$1,095.74$ Ͳ$141.48$86.30$98.26$649.48$1,491.84$884.43$657.88$ Ͳ$ Ͳ$5,105.4$
LangleyGulch
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ20,118.2216,119.2215,625.4214,201.5223,445.7 Ͳ21,858.0911,368.0
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$519.68$6,313.62$6,771.61$6,192.91$6,554.02$ Ͳ$1,926.88$28,278.7$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ61.63,049.3308.7 Ͳ Ͳ Ͳ Ͳ3,419.5
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2.48$143.40$15.92$ Ͳ$ Ͳ$ Ͳ$ Ͳ$161.8$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ3,698.42,090.5 Ͳ Ͳ Ͳ Ͳ5,788.9
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$162.14$99.00$ Ͳ$ Ͳ$ Ͳ$ Ͳ$261.1$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 1,515.92,080.6973.6654.35,741.847,425.9145,409.6132,703.243,689.335,713.6115,222.673,733.9604,864.3
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 77,288.166,309.283,417.185,993.796,494.9137,512.1239,762.0221,188.6119,286.0108,110.1184,488.6143,534.31,563,384.6
MarketExpense($x1000 57.53$58.88$22.57$17.34$132.72$1,277.95$4,284.35$4,052.95$1,233.26$1,077.74$3,760.76$2,656.67$18,632.7$
MarketExpenseͲNoWheeling($x1000 46.21$43.34$15.30$12.45$89.83$923.71$3,198.24$3,061.74$906.93$810.98$2,900.12$2,105.93$14,114.8$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 5,804.5$4,488.3$5,267.9$4,964.5$4,871.7$5,371.2$7,675.9$7,404.3$4,900.9$5,330.2$8,095.1$7,541.5$71,715.9$
Storage
BlackMesaBatteryEnergy(MWh (1,266.83)(1,147.74)(1,450.9)(1,193.4)(1,090.7)(873.1)(877.0)(875.2)(828.2)(873.0)(876.8)(1,041.7)(12,394.4)
80MWGridBatteryEnergy(MWh (2,549.15)(2,393.16)(2,962.6)(2,458.1)(2,236.4)(1,758.6)(1,751.2)(1,755.0)(1,656.3)(1,750.0)(1,731.4)(1,933.6)(24,935.5)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 35 of 76
11MWGridBatteryEnergy(MWh (336.24)(299.22)(377.1)(322.4)(289.1)(232.5)(243.3)(244.7)(221.2)(236.7)(221.6)(256.2)(3,280.1)
TotalStorage(MWh (4,152.2)(3,840.1)(4,790.5)(3,973.8)(3,616.3)(2,864.2)(2,871.5)(2,874.9)(2,705.6)(2,859.7)(2,829.8)(3,231.5)(40,610.0)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 248,378.6218,624.3213,389.9256,562.3211,834.9137,555.014,772.226,075.368,028.461,908.112,404.217,874.41,487,407.6
Revenue($x1000) 9,010.1$6,544.1$5,600.0$6,735.0$5,177.3$3,638.4$559.5$1,222.5$2,672.6$2,228.2$535.2$878.2$44,801.0$
RevenueͲNoWheeling($x1000) 7,154.9$4,911.1$4,006.1$4,818.7$3,595.0$2,610.9$449.2$1,027.7$2,164.5$1,765.8$442.6$744.7$33,691.1$
TotalEnergy 1,428,850.931,234,421.461,217,841.821,168,470.801,353,816.931,602,921.841,927,228.251,763,858.891,373,841.581,218,929.591,251,370.211,476,224.9817,017,777.28
TotalNPSE 16,493.7$18,760.5$15,809.6$16,710.8$18,862.4$28,580.7$43,840.0$44,373.2$31,911.6$32,345.0$32,315.6$36,064.5$347,177.8$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 36 of 76
1998
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,223,780.91,079,596.81,112,674.91,160,395.91,238,229.91,218,531.6955,932.7778,483.5711,680.5501,927.8379,696.0655,686.411,016,616.8
BridgerCoal
Energy(MWh) 124,435.843,914.633,756.733,694.745,915.669,735.1136,009.6191,684.5163,580.5186,052.0219,003.6250,589.51,498,372.16
Expense($x1000) 3,894.94$1,548.38$1,286.78$1,274.80$1,866.32$2,611.63$4,539.40$6,141.87$5,312.42$5,979.59$6,908.08$7,837.48$49,201.69$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ2,462.026,842.1 Ͳ40.538,900.844,637.7113,004.7
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$115.79$1,253.29$ Ͳ$1.92$1,814.67$2,070.39$5,261.8$
BridgerGas
Energy(MWh)Ͳ36,495.7 Ͳ1,777.72,117.31,519.924,087.848,537.018,449.219,617.7 Ͳ Ͳ152,602.2
Expense($x1000)Ͳ$1,211.01$ Ͳ$71.89$74.83$59.59$1,037.56$2,127.59$738.45$778.80$ Ͳ$ Ͳ$6,099.7$
LangleyGulch
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ17,340.8215,269.7217,103.4209,978.0220,264.1185,732.5120,963.21,186,651.7
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$474.50$6,641.31$7,200.68$6,415.49$6,826.46$11,768.14$11,100.85$50,427.4$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ61.620,607.84,498.4 Ͳ Ͳ131.8 Ͳ25,299.6
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2.63$986.16$234.42$ Ͳ$ Ͳ$13.45$ Ͳ$1,236.7$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ7,917.41,755.4 Ͳ Ͳ2,430.3251.712,354.8
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$384.34$86.32$ Ͳ$ Ͳ$248.14$34.61$753.4$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 3,315.41,591.9419.744.22,996.941,017.7177,300.5142,092.728,450.850,884.8190,590.6162,538.4801,243.5
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 79,087.565,820.482,863.385,383.693,750.0131,104.0271,653.0230,578.1104,047.4123,281.3259,856.6232,338.81,759,763.9
MarketExpense($x1000 138.36$46.93$10.53$1.09$73.31$1,119.27$5,283.01$4,811.03$861.30$1,653.99$6,819.26$6,503.58$27,321.7$
MarketExpenseͲNoWheeling($x1000 113.60$35.04$7.39$0.76$50.92$812.89$3,958.69$3,749.69$648.79$1,273.91$5,395.67$5,289.53$21,336.9$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 5,871.8$4,480.0$5,260.0$4,952.8$4,832.8$5,260.4$8,436.4$8,092.3$4,642.8$5,793.1$10,590.6$10,725.1$78,938.0$
Storage
BlackMesaBatteryEnergy(MWh (1,162.21)(1,163.82)(1,456.9)(1,196.7)(1,138.8)(886.4)(869.3)(863.9)(819.1)(900.1)(917.3)(1,225.8)(12,600.2)
80MWGridBatteryEnergy(MWh (2,306.91)(2,271.20)(2,895.2)(2,406.4)(2,313.0)(1,772.8)(1,751.3)(1,736.3)(1,678.4)(1,829.2)(1,809.3)(2,318.0)(25,088.0)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 37 of 76
11MWGridBatteryEnergy(MWh (316.07)(311.63)(368.3)(315.9)(300.5)(233.2)(241.8)(237.2)(218.8)(251.6)(222.5)(303.6)(3,321.1)
TotalStorage(MWh (3,785.2)(3,746.7)(4,720.5)(3,919.0)(3,752.2)(2,892.4)(2,862.4)(2,837.4)(2,716.4)(2,980.8)(2,949.0)(3,847.4)(41,009.3)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 197,587.2213,645.3252,949.8397,538.2336,129.8152,930.48,141.322,692.966,102.251,539.19,383.27,513.51,716,152.8
Revenue($x1000) 7,648.0$6,809.7$6,630.2$10,668.4$8,478.7$3,963.3$380.7$1,173.5$2,617.4$1,991.3$450.5$409.7$51,221.3$
RevenueͲNoWheeling($x1000) 6,172.1$5,213.9$4,740.8$7,699.0$5,968.0$2,821.0$319.9$1,004.0$2,123.6$1,606.3$380.4$353.6$38,402.7$
TotalEnergy 1,428,850.941,234,421.501,217,841.831,168,470.771,353,816.921,602,921.821,927,228.211,763,858.901,373,841.601,218,929.601,251,370.171,476,224.9617,017,777.22
TotalNPSE 18,620.8$18,848.5$14,744.8$12,744.4$15,737.0$28,063.4$47,127.3$48,426.4$32,992.3$34,453.6$47,922.7$49,724.2$382,223.9$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 38 of 76
1999
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,235,081.91,071,591.91,085,508.71,042,566.21,141,955.71,270,802.0919,773.7777,180.6664,018.2475,023.2378,146.6705,067.610,766,716.3
BridgerCoal
Energy(MWh) 124,183.343,755.237,860.136,001.142,140.866,328.6136,109.1185,686.3165,871.6191,179.6222,108.5250,589.51,501,813.38
Expense($x1000) 3,887.67$1,543.79$1,404.80$1,341.14$1,757.71$2,513.58$4,542.25$5,969.25$5,378.43$6,127.10$6,997.45$7,837.48$49,300.65$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ12,002.325,133.0 Ͳ40.540,427.543,906.4121,631.2
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$564.58$1,175.09$ Ͳ$1.92$1,882.72$2,037.79$5,667.9$
BridgerGas
Energy(MWh)Ͳ33,802.5 Ͳ3,556.01,039.5710.421,422.540,615.211,149.618,956.9 Ͳ Ͳ131,252.6
Expense($x1000)Ͳ$1,124.36$ Ͳ$144.40$36.84$27.91$924.65$1,784.38$447.53$754.11$ Ͳ$ Ͳ$5,244.2$
LangleyGulch
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ13,722.1215,336.4216,229.0209,433.7220,596.4181,284.0103,928.51,160,530.1
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$376.92$6,670.31$7,202.21$6,425.59$6,864.17$11,506.76$9,579.74$48,625.7$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ60.925,742.11,799.61,110.0 Ͳ2,093.666.030,872.1
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2.72$1,227.43$91.88$54.85$ Ͳ$213.61$9.19$1,599.7$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ5,452.12,361.8 Ͳ Ͳ243.0 Ͳ8,056.9
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$265.79$119.52$ Ͳ$ Ͳ$24.92$ Ͳ$410.2$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 2,201.21,890.0760.6231.34,511.439,396.9205,818.1156,614.655,077.259,521.5191,224.3135,571.1852,818.0
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 77,973.366,118.683,204.185,570.695,264.5129,483.1300,170.6245,100.0130,673.9131,918.1260,490.3205,371.51,811,338.4
MarketExpense($x1000 93.24$55.70$18.82$6.44$108.79$1,047.49$6,169.48$5,175.83$1,666.98$1,962.74$6,953.37$5,384.02$28,642.9$
MarketExpenseͲNoWheeling($x1000 76.80$41.58$13.14$4.71$75.09$753.22$4,632.16$4,006.02$1,255.59$1,518.15$5,525.05$4,371.39$22,272.9$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 5,835.0$4,486.5$5,265.8$4,956.7$4,856.9$5,200.7$9,109.8$8,348.6$5,249.6$6,037.3$10,720.0$9,806.9$79,874.0$
Storage
BlackMesaBatteryEnergy(MWh (1,219.97)(1,151.55)(1,377.4)(1,124.2)(1,123.4)(870.1)(882.7)(879.3)(777.9)(852.1)(979.2)(1,162.1)(12,399.9)
80MWGridBatteryEnergy(MWh (2,456.45)(2,331.77)(2,784.8)(2,304.9)(2,237.0)(1,730.2)(1,760.9)(1,754.8)(1,564.3)(1,724.9)(1,948.4)(2,278.7)(24,877.3)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 39 of 76
11MWGridBatteryEnergy(MWh (336.18)(301.75)(359.7)(300.7)(303.1)(230.4)(241.2)(237.0)(212.7)(237.1)(251.9)(293.5)(3,305.3)
TotalStorage(MWh (4,012.6)(3,785.1)(4,521.9)(3,729.8)(3,663.5)(2,830.7)(2,884.8)(2,871.1)(2,554.8)(2,814.1)(3,179.5)(3,734.4)(40,582.4)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 207,294.0203,047.6230,426.4284,169.7236,606.1195,806.210,187.817,282.340,785.238,237.08,194.512,088.31,484,125.1
Revenue($x1000) 7,938.5$6,526.5$6,347.8$7,926.3$6,041.0$4,983.2$462.3$892.7$1,634.2$1,471.8$411.0$664.9$45,300.3$
RevenueͲNoWheeling($x1000) 6,390.2$5,009.8$4,626.7$5,803.7$4,273.7$3,520.7$386.2$763.6$1,329.6$1,186.2$349.8$574.6$34,214.9$
TotalEnergy 1,428,850.951,234,421.471,217,841.831,168,470.771,353,816.901,602,921.851,927,228.251,763,858.891,373,841.591,218,929.601,251,370.201,476,224.9717,017,777.27
TotalNPSE 18,286.2$19,047.1$15,150.9$15,629.3$18,052.3$26,756.6$48,209.6$48,261.6$34,422.3$35,377.8$47,964.5$46,971.8$385,215.3$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 40 of 76
2000
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,177,062.31,025,758.91,063,824.31,113,599.81,025,771.8922,963.5755,900.8549,604.2611,660.4453,721.2374,657.2462,891.29,537,415.5
BridgerCoal
Energy(MWh) 125,632.946,571.733,862.339,805.953,719.995,960.0162,350.0234,984.8226,160.4222,295.7238,959.6250,685.41,730,988.53
Expense($x1000) 3,929.37$1,624.80$1,289.81$1,450.58$2,090.94$3,366.45$5,297.60$7,388.26$7,114.00$7,022.82$7,482.55$7,840.25$55,897.43$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ34,679.641,898.6 Ͳ40.540,400.147,845.3164,985.7
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,622.15$1,948.30$ Ͳ$1.92$1,881.50$2,213.37$7,673.0$
BridgerGas
Energy(MWh)Ͳ29,625.0 Ͳ550.12,516.64,015.421,797.625,982.913,475.226,999.8 Ͳ Ͳ124,962.4
Expense($x1000)Ͳ$1,044.32$ Ͳ$23.66$94.48$167.18$997.62$1,209.63$573.38$1,139.35$ Ͳ$ Ͳ$5,249.6$
LangleyGulch
Energy(MWh) 4,761.3 Ͳ Ͳ Ͳ Ͳ136,554.2215,900.8216,926.0210,782.0221,742.6183,305.9159,414.31,349,387.1
Expense($x1000) 374.13$ Ͳ$ Ͳ$ Ͳ$ Ͳ$3,875.80$6,998.80$7,564.48$6,766.17$7,220.32$12,315.89$15,523.85$60,639.4$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ84,988.881,533.9 Ͳ Ͳ580.413,372.1180,475.1
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$4,280.98$4,454.00$ Ͳ$ Ͳ$63.40$1,976.71$10,775.1$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,838.334,609.055,706.64,383.7 Ͳ243.02,391.299,171.9
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$77.70$1,757.59$3,056.01$215.19$ Ͳ$26.19$347.17$5,479.9$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 4,987.81,762.62,228.6222.48,676.483,001.4227,048.1189,220.341,544.855,538.8176,667.5291,193.61,082,092.1
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 80,760.065,991.184,672.185,561.899,429.5173,087.6321,400.6277,705.6117,141.4127,935.3245,933.5360,994.02,040,612.4
MarketExpense($x1000 227.24$55.61$58.94$6.32$212.11$2,176.46$7,346.46$7,074.38$1,442.29$1,992.67$6,659.58$12,956.37$40,208.4$
MarketExpenseͲNoWheeling($x1000 189.98$42.44$42.29$4.66$147.30$1,556.49$5,650.56$5,661.03$1,131.98$1,577.83$5,339.99$10,781.35$32,125.9$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 5,948.2$4,487.4$5,294.9$4,956.7$4,929.2$6,004.0$10,128.3$10,003.6$5,126.0$6,097.0$10,534.9$16,216.9$89,727.0$
Storage
BlackMesaBatteryEnergy(MWh (1,273.16)(1,203.42)(1,415.5)(1,221.0)(957.8)(872.3)(883.0)(873.1)(805.2)(916.8)(887.3)(1,144.4)(12,452.9)
80MWGridBatteryEnergy(MWh (2,543.51)(2,523.16)(2,871.4)(2,427.4)(1,969.5)(1,744.6)(1,751.2)(1,741.0)(1,584.1)(1,851.2)(1,743.8)(2,299.7)(25,050.4)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 41 of 76
11MWGridBatteryEnergy(MWh (336.68)(319.39)(364.7)(329.6)(261.4)(228.6)(245.0)(234.8)(213.2)(254.1)(227.3)(289.3)(3,304.0)
TotalStorage(MWh (4,153.4)(4,046.0)(4,651.5)(3,978.1)(3,188.6)(2,845.5)(2,879.2)(2,848.8)(2,602.4)(3,022.0)(2,858.4)(3,733.4)(40,807.3)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 158,131.2155,465.2206,082.6355,744.8138,118.449,103.55,811.87,541.742,083.653,049.67,801.9753.71,179,687.9
Revenue($x1000) 6,661.0$5,206.7$5,566.8$10,113.7$3,966.1$1,611.8$296.5$399.1$1,672.6$2,138.4$416.3$41.9$38,090.9$
RevenueͲNoWheeling($x1000) 5,479.9$4,045.5$4,027.5$7,456.5$2,934.4$1,245.0$253.1$342.7$1,358.3$1,742.2$358.0$36.3$29,279.4$
TotalEnergy 1,428,850.941,234,421.481,217,841.811,168,470.811,353,816.911,602,921.811,927,228.251,763,858.881,373,841.581,218,929.621,251,370.191,476,224.9817,017,777.26
TotalNPSE 20,092.7$20,368.7$15,846.1$13,430.5$20,590.3$35,497.3$56,153.5$59,688.6$36,622.6$36,408.0$48,918.3$62,441.9$434,870.0$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 42 of 76
2001
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 552,748.8538,036.7524,468.4520,027.3569,434.5621,169.1553,042.5451,074.6434,807.6405,936.6371,689.5445,257.45,987,692.9
BridgerCoal
Energy(MWh) 125,632.8107,814.871,617.072,584.873,897.9137,201.8218,306.4250,686.7242,600.0250,038.1242,600.0250,686.72,043,666.96
Expense($x1000) 3,929.37$3,386.31$2,375.73$2,393.38$2,671.63$4,553.55$6,908.19$7,840.28$7,587.37$7,821.61$7,587.37$7,840.28$64,895.07$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ47,085.150,504.242,809.617,324.047,268.869,079.7274,193.0
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,182.17$2,333.23$1,988.91$805.49$2,187.67$3,162.45$12,665.7$
BridgerGas
Energy(MWh)Ͳ30,745.6 Ͳ1,673.5883.44,764.227,513.042,717.728,482.420,118.4 Ͳ Ͳ156,898.1
Expense($x1000)Ͳ$1,260.36$ Ͳ$83.50$38.64$230.48$1,464.07$2,313.96$1,410.24$987.33$ Ͳ$ Ͳ$7,788.6$
LangleyGulch
Energy(MWh) 198,592.6208,685.8159,830.2197,724.8228,936.4207,738.9215,601.9216,018.1214,314.2221,547.0185,059.2156,921.72,410,970.5
Expense($x1000) 16,414.49$6,186.16$10,168.78$6,817.76$6,791.88$6,667.05$7,923.39$8,549.18$7,793.77$8,179.26$14,118.22$17,611.91$117,221.9$
Danskin
Energy(MWh) 22,168.0483.3 Ͳ Ͳ Ͳ43,414.8133,241.9124,265.924,288.4 Ͳ295.813,372.3361,530.5
Expense($x1000) 3,037.96$23.96$ Ͳ$ Ͳ$ Ͳ$2,180.41$7,814.96$7,827.72$1,317.37$ Ͳ$37.03$2,266.03$24,505.4$
BennettMountain
Energy(MWh) 2,621.4 Ͳ Ͳ Ͳ Ͳ21,624.192,068.670,216.11,136.4 Ͳ243.03,272.2191,181.8
Expense($x1000) 354.38$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,091.41$5,387.62$4,420.34$61.63$ Ͳ$29.99$544.52$11,889.9$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 252,238.489,400.7154,902.546,981.2110,088.1168,387.4247,803.7192,688.5107,186.963,926.9169,050.9289,121.01,891,776.0
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 328,010.5153,629.2237,346.0132,320.6200,841.2258,473.6342,156.1281,173.9182,783.5136,323.4238,316.9358,921.52,850,296.4
MarketExpense($x1000 12,774.32$3,127.69$4,389.76$1,366.42$2,930.71$5,271.93$9,868.11$8,405.78$4,386.24$2,690.44$7,283.88$14,434.11$76,929.4$
MarketExpenseͲNoWheeling($x1000 10,890.27$2,459.93$3,232.74$1,015.50$2,108.42$4,014.19$8,017.18$6,966.52$3,585.63$2,212.95$6,021.18$12,274.57$62,799.1$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 16,648.5$6,904.9$8,485.4$5,967.5$6,890.3$8,461.7$12,494.9$11,309.1$7,579.6$6,732.1$11,216.1$17,710.1$120,400.2$
Storage
BlackMesaBatteryEnergy(MWh (1,169.61)(962.05)(1,221.4)(1,003.1)(869.5)(846.2)(875.6)(868.2)(831.4)(913.2)(948.4)(1,128.9)(11,637.4)
80MWGridBatteryEnergy(MWh (2,356.85)(1,828.61)(2,390.3)(1,981.3)(1,772.5)(1,716.0)(1,736.8)(1,736.5)(1,643.5)(1,804.2)(1,921.3)(2,180.2)(23,068.1)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 43 of 76
11MWGridBatteryEnergy(MWh (315.88)(238.99)(319.8)(262.9)(228.2)(225.8)(239.1)(236.9)(218.6)(243.2)(237.9)(280.1)(3,047.3)
TotalStorage(MWh (3,842.3)(3,029.7)(3,931.5)(3,247.2)(2,870.2)(2,788.1)(2,851.5)(2,841.5)(2,693.5)(2,960.6)(3,107.6)(3,589.2)(37,752.9)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh)Ͳ27,930.317,705.441,289.130,992.49,128.13,227.69,863.629,611.751,663.48,946.4815.6231,173.5
Revenue($x1000)Ͳ$1,334.6$727.4$1,681.7$1,072.8$378.3$171.1$622.7$1,555.1$2,211.1$502.0$55.5$10,312.3$
RevenueͲNoWheeling($x1000)Ͳ$1,125.9$595.1$1,373.3$841.3$310.1$147.0$549.0$1,333.9$1,825.2$435.2$49.4$8,585.6$
TotalEnergy 1,428,850.931,234,421.461,217,841.841,168,470.801,353,816.921,602,921.841,927,228.281,763,858.901,373,841.601,218,929.581,251,370.201,476,225.0017,017,777.35
TotalNPSE 56,886.7$34,846.0$35,130.6$30,693.8$32,761.4$46,424.3$69,371.2$68,434.6$44,684.3$39,379.7$51,704.5$67,445.3$579,489.1$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 44 of 76
2002
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 530,478.9500,179.5571,011.9749,779.5690,474.9699,685.9548,521.0449,495.2409,544.9406,703.4372,357.1439,478.26,367,710.4
BridgerCoal
Energy(MWh) 125,632.8106,121.867,469.970,293.857,438.7121,919.4205,507.9250,111.8242,559.3247,328.2242,600.0250,686.71,987,670.33
Expense($x1000) 3,929.37$3,337.62$2,256.45$2,327.49$2,197.97$4,113.68$6,539.74$7,823.73$7,586.20$7,743.57$7,587.37$7,840.28$63,283.47$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ44,125.844,269.040,747.617,089.043,439.060,595.9250,387.9
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,047.24$2,052.61$1,896.99$795.02$2,016.96$2,784.18$11,598.8$
BridgerGas
Energy(MWh)Ͳ46,595.2 Ͳ1,770.349.04,732.928,629.034,181.430,520.529,949.0 Ͳ Ͳ176,427.2
Expense($x1000)Ͳ$1,836.27$ Ͳ$85.25$2.05$220.49$1,464.96$1,779.98$1,453.03$1,413.68$ Ͳ$ Ͳ$8,255.7$
LangleyGulch
Energy(MWh) 199,553.5208,920.8145,532.2 Ͳ213,170.8207,525.2215,823.8215,637.7213,972.9222,117.9181,687.3154,851.52,178,793.5
Expense($x1000) 15,922.82$6,006.65$8,960.18$ Ͳ$6,140.33$6,458.87$7,687.41$8,270.13$7,542.47$7,947.29$13,536.90$16,931.96$105,405.0$
Danskin
Energy(MWh) 27,015.6259.7 Ͳ Ͳ Ͳ20,608.5138,557.1126,681.139,783.9 Ͳ197.714,318.0367,421.6
Expense($x1000) 3,577.78$12.19$ Ͳ$ Ͳ$ Ͳ$991.18$7,864.51$7,732.92$2,210.65$ Ͳ$23.70$2,349.33$24,762.3$
BennettMountain
Energy(MWh) 4,369.0596.3 Ͳ Ͳ Ͳ6,305.096,163.869,970.61,363.7 Ͳ486.12,517.1181,771.5
Expense($x1000) 571.07$26.58$ Ͳ$ Ͳ$ Ͳ$305.23$5,441.20$4,269.93$73.09$ Ͳ$57.99$404.93$11,150.0$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 267,065.2113,525.6131,492.130,707.647,616.2151,375.8257,066.0204,988.7120,273.562,640.6174,663.2304,812.11,866,226.3
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 342,837.3177,754.2213,935.6116,046.9138,369.3241,462.0351,418.4293,474.0195,870.1135,037.1243,929.2374,612.52,824,746.7
MarketExpense($x1000 13,137.04$3,937.31$3,605.01$855.02$1,200.65$4,400.27$9,849.95$8,421.17$4,752.06$2,487.77$7,246.08$14,654.12$74,546.5$
MarketExpenseͲNoWheeling($x1000 11,142.24$3,089.35$2,622.85$625.65$844.99$3,269.59$7,929.84$6,890.04$3,853.70$2,019.89$5,941.46$12,377.38$60,607.0$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 16,900.5$7,534.3$7,875.5$5,577.7$5,626.8$7,717.1$12,407.5$11,232.6$7,847.7$6,539.1$11,136.4$17,812.9$118,208.1$
Storage
BlackMesaBatteryEnergy(MWh (1,228.23)(947.68)(1,159.3)(1,086.0)(913.9)(843.4)(875.6)(882.3)(837.0)(975.0)(931.1)(1,066.2)(11,745.7)
80MWGridBatteryEnergy(MWh (2,407.31)(1,844.47)(2,302.6)(2,180.9)(1,901.9)(1,679.1)(1,736.8)(1,750.6)(1,685.3)(1,967.5)(1,822.8)(2,104.3)(23,383.4)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 45 of 76
11MWGridBatteryEnergy(MWh (319.74)(251.89)(293.1)(296.6)(241.2)(223.3)(239.1)(238.9)(221.5)(263.8)(243.0)(275.9)(3,108.0)
TotalStorage(MWh (3,955.3)(3,044.0)(3,755.1)(3,563.5)(3,057.0)(2,745.8)(2,851.4)(2,871.8)(2,743.8)(3,206.2)(2,996.9)(3,446.3)(38,237.1)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh)Ͳ28,948.022,570.054,532.356,314.917,023.12,959.26,996.932,702.058,354.98,280.1507.0289,188.3
Revenue($x1000)Ͳ$1,368.6$896.8$2,113.7$1,771.6$678.1$154.3$401.3$1,647.2$2,631.5$471.7$31.2$12,166.0$
RevenueͲNoWheeling($x1000)Ͳ$1,152.3$728.2$1,706.4$1,350.9$551.0$132.2$349.1$1,402.9$2,195.6$409.9$27.4$10,005.9$
TotalEnergy 1,428,850.931,234,421.501,217,841.821,168,470.791,353,816.931,602,921.811,927,228.241,763,858.901,373,841.591,218,929.591,251,370.221,476,225.0117,017,777.33
TotalNPSE 57,403.5$35,803.9$33,023.4$22,990.0$29,637.4$42,746.4$68,665.3$67,224.0$45,463.5$38,872.1$50,917.8$66,458.0$561,365.3$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 46 of 76
2003
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 549,352.8566,762.0486,790.1613,989.8878,135.9778,846.8611,808.0477,579.0414,163.9408,111.3374,086.4433,578.36,593,204.4
BridgerCoal
Energy(MWh) 125,632.9101,742.565,841.963,050.976,555.4122,345.1193,840.4247,338.2242,565.5245,553.9242,600.0250,686.71,977,753.47
Expense($x1000) 3,929.37$3,211.66$2,209.63$2,119.16$2,748.14$4,125.91$6,203.94$7,743.87$7,586.37$7,692.46$7,587.37$7,840.28$62,998.16$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ44,736.245,523.438,498.815,928.840,134.463,646.9248,590.0
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,075.79$2,109.87$1,796.75$743.30$1,869.66$2,920.18$11,521.3$
BridgerGas
Energy(MWh)Ͳ29,405.7 Ͳ787.3415.91,506.827,132.632,504.219,514.216,498.1 Ͳ Ͳ127,764.8
Expense($x1000)Ͳ$1,156.45$ Ͳ$37.77$17.36$69.90$1,385.61$1,688.88$926.72$776.38$ Ͳ$ Ͳ$6,059.1$
LangleyGulch
Energy(MWh) 201,500.0208,844.5161,032.1103,988.7 Ͳ203,822.3215,423.6215,429.8213,812.8221,818.3181,722.5159,440.52,086,835.1
Expense($x1000) 15,976.31$5,994.22$9,885.33$3,470.83$ Ͳ$6,333.87$7,660.09$8,247.69$7,523.72$7,922.90$13,512.01$17,133.35$103,660.3$
Danskin
Energy(MWh) 19,018.2 Ͳ367.592.4 Ͳ3,639.0126,807.5110,747.020,187.7 Ͳ197.74,762.7285,819.8
Expense($x1000) 2,506.35$ Ͳ$34.52$5.22$ Ͳ$178.62$7,173.35$6,753.13$1,086.84$ Ͳ$23.65$782.61$18,544.3$
BennettMountain
Energy(MWh) 6,116.6 Ͳ934.5 Ͳ Ͳ7,998.279,783.177,196.71,818.2 Ͳ486.115,606.0189,939.3
Expense($x1000) 797.98$ Ͳ$86.09$ Ͳ$ Ͳ$385.68$4,507.83$4,723.85$99.84$ Ͳ$57.88$2,505.74$13,164.9$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 252,714.774,341.2191,610.251,306.155,844.1111,596.5237,328.9190,599.5135,139.863,302.8173,801.8299,604.01,837,189.6
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 328,486.9138,569.7274,053.7136,645.5146,597.2201,682.7331,681.4279,084.9210,736.5135,699.3243,067.9369,404.52,795,710.0
MarketExpense($x1000 12,522.34$2,445.05$5,460.84$1,440.58$1,442.33$3,228.62$8,738.90$7,686.78$5,238.93$2,537.48$6,985.43$14,538.52$72,265.8$
MarketExpenseͲNoWheeling($x1000 10,634.73$1,889.77$4,029.64$1,057.36$1,025.21$2,395.07$6,966.21$6,263.13$4,229.52$2,064.65$5,687.25$12,300.68$58,543.2$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 16,393.0$6,334.7$9,282.3$6,009.4$5,807.1$6,842.6$11,443.9$10,605.7$8,223.5$6,583.8$10,882.2$17,736.2$116,144.3$
Storage
BlackMesaBatteryEnergy(MWh (1,275.29)(805.48)(1,177.5)(988.1)(878.2)(827.6)(875.7)(875.2)(821.3)(963.8)(844.7)(1,127.2)(11,460.0)
80MWGridBatteryEnergy(MWh (2,520.96)(1,658.70)(2,280.3)(1,962.2)(1,816.3)(1,653.6)(1,751.0)(1,750.6)(1,642.3)(1,838.6)(1,676.0)(2,189.4)(22,739.7)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 47 of 76
11MWGridBatteryEnergy(MWh (337.94)(209.65)(304.4)(266.6)(233.4)(216.1)(241.1)(238.5)(215.7)(255.8)(203.0)(278.9)(3,001.0)
TotalStorage(MWh (4,134.2)(2,673.8)(3,762.1)(3,216.8)(2,927.8)(2,697.3)(2,867.8)(2,864.3)(2,679.3)(3,058.1)(2,723.7)(3,595.5)(37,200.6)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 41.334,215.213,633.135,543.158,645.834,673.55,408.88,586.919,701.243,888.06,151.9423.5260,912.5
Revenue($x1000) 2.9$1,553.6$542.3$1,381.8$1,951.5$1,210.2$288.6$506.6$959.0$1,802.6$304.0$27.2$10,530.3$
RevenueͲNoWheeling($x1000) 2.6$1,298.0$440.5$1,116.3$1,513.5$951.2$248.2$442.5$811.8$1,474.8$258.0$24.0$8,581.4$
TotalEnergy 1,428,850.931,234,421.471,217,841.841,168,470.781,353,816.931,602,921.831,927,228.261,763,858.871,373,841.581,218,929.591,251,370.181,476,224.9817,017,777.24
TotalNPSE 56,102.1$33,562.3$35,783.6$27,373.9$24,062.8$40,344.3$65,529.0$65,829.8$44,785.3$38,981.3$50,658.9$67,256.8$552,218.8$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 48 of 76
2004
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 502,582.4556,777.9616,274.4635,197.8746,862.3660,396.6569,674.6485,210.3475,454.6419,509.1358,416.2451,797.66,478,153.8
BridgerCoal
Energy(MWh) 125,632.9107,633.570,610.582,767.687,011.1123,533.3199,898.2250,015.4242,600.0250,165.5242,600.0250,686.72,033,154.78
Expense($x1000) 3,929.37$3,381.10$2,346.79$2,686.27$3,048.90$4,160.11$6,378.29$7,820.95$7,587.37$7,825.27$7,587.37$7,840.28$64,592.07$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ40,201.746,008.840,611.512,067.845,883.666,537.6251,432.5
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,873.67$2,130.16$1,890.93$560.33$2,125.92$3,049.14$11,635.9$
BridgerGas
Energy(MWh)Ͳ28,859.9 Ͳ3,831.74,086.85,254.316,047.422,977.721,374.733,958.6 Ͳ Ͳ136,391.1
Expense($x1000)Ͳ$1,170.91$ Ͳ$189.60$176.89$251.95$845.09$1,231.48$1,047.10$1,650.61$ Ͳ$ Ͳ$6,563.6$
LangleyGulch
Energy(MWh) 199,287.8208,772.7133,355.450,821.445,408.0206,689.2214,989.1216,602.1214,267.9221,181.0182,476.9161,077.92,054,929.5
Expense($x1000) 16,295.31$6,136.95$8,475.54$1,744.57$1,338.30$6,578.94$7,834.07$8,497.93$7,725.58$8,096.33$13,897.17$17,669.08$104,289.8$
Danskin
Energy(MWh) 39,928.0 Ͳ Ͳ Ͳ Ͳ38,762.5130,704.9123,229.61,679.5 Ͳ1,994.713,268.3349,567.5
Expense($x1000) 5,437.39$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,929.58$7,597.06$7,648.92$89.61$ Ͳ$242.50$2,229.26$25,174.3$
BennettMountain
Energy(MWh) 7,739.4 Ͳ Ͳ Ͳ Ͳ12,851.988,858.862,086.54,220.9 Ͳ486.12,139.5178,383.0
Expense($x1000) 1,036.63$ Ͳ$ Ͳ$ Ͳ$ Ͳ$646.87$5,189.01$3,863.85$234.71$ Ͳ$59.42$352.74$11,383.2$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 278,970.377,098.9102,543.656,809.0105,430.6159,938.7273,274.9186,512.596,897.054,499.9182,224.2282,819.81,857,019.5
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 354,742.5141,327.5184,987.1142,148.4196,183.7250,024.9367,627.4274,997.9172,493.6126,896.4251,490.3352,620.22,815,539.9
MarketExpense($x1000 14,301.12$2,663.53$2,826.46$1,672.57$2,846.10$4,769.28$10,410.15$7,923.44$3,980.18$2,203.18$7,884.64$14,190.62$75,671.3$
MarketExpenseͲNoWheeling($x1000 12,217.40$2,087.65$2,060.53$1,248.24$2,058.60$3,574.64$8,368.97$6,530.32$3,256.42$1,796.10$6,523.55$12,078.14$61,800.6$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 17,975.6$6,532.6$7,313.2$6,200.3$6,840.5$8,022.1$12,846.7$10,872.9$7,250.4$6,315.3$11,718.5$17,513.7$119,401.7$
Storage
BlackMesaBatteryEnergy(MWh (1,211.84)(831.79)(1,093.8)(1,037.7)(837.3)(763.8)(868.2)(882.0)(819.7)(892.2)(943.1)(1,200.3)(11,381.5)
80MWGridBatteryEnergy(MWh (2,367.42)(1,647.23)(2,148.2)(2,059.2)(1,702.0)(1,548.4)(1,750.6)(1,730.9)(1,676.9)(1,810.1)(1,802.2)(2,406.7)(22,649.8)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 49 of 76
11MWGridBatteryEnergy(MWh (323.57)(221.74)(276.9)(279.5)(225.5)(205.9)(242.8)(238.2)(215.7)(242.6)(233.4)(306.4)(3,012.2)
TotalStorage(MWh (3,902.8)(2,700.8)(3,518.8)(3,376.4)(2,764.8)(2,518.1)(2,861.7)(2,851.0)(2,712.2)(2,944.9)(2,978.6)(3,913.4)(37,043.5)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 78.332,235.230,084.031,596.036,656.412,524.62,204.34,325.231,073.564,169.96,949.71,107.9253,005.0
Revenue($x1000) 5.1$1,492.7$1,207.2$1,300.7$1,368.2$476.0$115.8$253.8$1,550.5$2,943.4$403.6$72.6$11,189.5$
RevenueͲNoWheeling($x1000) 4.5$1,251.9$982.5$1,064.7$1,094.4$382.4$99.3$221.5$1,318.4$2,464.1$351.7$64.4$9,299.7$
TotalEnergy 1,428,850.921,234,421.481,217,841.841,168,470.801,353,816.911,602,921.831,927,228.231,763,858.911,373,841.601,218,929.601,251,370.191,476,224.9717,017,777.28
TotalNPSE 61,171.2$34,147.8$31,756.4$26,633.3$27,478.1$44,731.5$67,815.1$66,275.8$42,775.7$38,569.4$52,257.4$66,947.1$562,448.8$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 50 of 76
2005
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 535,163.9489,349.9482,191.3576,436.7855,261.5645,856.0709,742.8537,194.7482,049.6418,609.5370,787.5580,443.26,683,086.4
BridgerCoal
Energy(MWh) 125,632.9104,566.067,573.672,683.264,139.3129,881.0184,854.4246,352.5242,600.0245,981.4242,600.0250,686.71,977,551.02
Expense($x1000) 3,929.37$3,292.87$2,259.44$2,396.21$2,390.74$4,342.84$5,945.28$7,715.52$7,587.37$7,704.78$7,587.37$7,840.28$62,992.07$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ41,158.544,743.837,450.217,464.743,288.458,585.0242,812.2
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,916.32$2,073.78$1,750.01$811.76$2,010.25$2,694.54$11,262.4$
BridgerGas
Energy(MWh)Ͳ48,811.2 Ͳ8,777.8100.62,560.319,739.828,359.618,883.731,511.6 Ͳ Ͳ158,744.6
Expense($x1000)Ͳ$1,923.68$ Ͳ$421.64$4.20$119.17$1,009.78$1,476.00$898.58$1,487.38$ Ͳ$ Ͳ$7,340.4$
LangleyGulch
Energy(MWh) 199,501.3208,976.4161,084.6156,146.622,581.1208,276.8214,999.7215,745.5213,661.5221,544.4180,831.7148,959.52,152,308.9
Expense($x1000) 15,892.09$5,997.83$9,879.67$5,210.76$652.83$6,470.03$7,645.50$8,259.45$7,518.57$7,913.42$13,479.02$16,249.61$105,168.8$
Danskin
Energy(MWh) 24,095.6647.3372.0 Ͳ Ͳ41,926.9108,535.7106,277.292.5 Ͳ349.3 Ͳ282,296.5
Expense($x1000) 3,175.92$30.57$34.91$ Ͳ$ Ͳ$1,997.85$6,122.31$6,418.74$5.33$ Ͳ$42.70$ Ͳ$17,828.3$
BennettMountain
Energy(MWh) 4,743.51,385.4700.8 Ͳ Ͳ12,070.836,295.543,128.71,477.3 Ͳ729.1 Ͳ100,531.2
Expense($x1000) 618.84$63.27$64.57$ Ͳ$ Ͳ$578.60$2,045.32$2,606.46$79.68$ Ͳ$86.82$ Ͳ$6,143.6$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 265,039.1120,810.8194,078.943,892.762,985.8168,126.1221,350.2173,614.995,253.353,332.0177,887.4193,948.51,770,319.4
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 340,811.2185,039.4276,522.4129,232.1153,738.8258,212.3315,702.7262,100.2170,849.9125,728.5247,153.4263,748.92,728,839.8
MarketExpense($x1000 13,200.17$4,177.49$5,531.14$1,252.51$1,637.17$4,996.25$7,822.13$6,984.55$3,712.79$2,131.81$7,301.04$8,876.66$67,623.7$
MarketExpenseͲNoWheeling($x1000 11,220.50$3,275.11$4,081.50$924.66$1,166.71$3,740.46$6,168.79$5,687.76$3,001.31$1,733.46$5,972.34$7,427.99$54,400.6$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 16,978.8$7,720.0$9,334.1$5,876.7$5,948.6$8,188.0$10,646.5$10,030.3$6,995.3$6,252.6$11,167.3$12,863.5$112,001.7$
Storage
BlackMesaBatteryEnergy(MWh (1,226.90)(901.46)(1,143.5)(1,146.6)(989.6)(880.1)(882.7)(863.9)(832.1)(954.2)(938.6)(1,084.7)(11,844.3)
80MWGridBatteryEnergy(MWh (2,452.20)(1,824.33)(2,299.2)(2,329.8)(1,967.5)(1,722.7)(1,765.1)(1,730.9)(1,616.4)(1,868.3)(1,850.9)(2,083.8)(23,511.0)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 51 of 76
11MWGridBatteryEnergy(MWh (333.95)(234.48)(285.5)(299.0)(266.6)(229.3)(241.2)(234.9)(210.3)(253.5)(244.9)(268.1)(3,101.6)
TotalStorage(MWh (4,013.1)(2,960.3)(3,728.2)(3,775.4)(3,223.7)(2,832.1)(2,889.0)(2,829.6)(2,658.8)(3,076.0)(3,034.3)(3,436.5)(38,456.8)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 3.427,379.913,092.059,706.352,466.813,481.95,203.87,120.725,488.961,100.59,285.75,880.1280,209.9
Revenue($x1000) 0.3$1,296.8$526.0$2,532.6$1,679.2$519.7$264.3$428.6$1,213.9$2,726.9$536.6$370.3$12,095.2$
RevenueͲNoWheeling($x1000) 0.2$1,092.3$428.2$2,086.6$1,287.3$419.0$225.5$375.4$1,023.5$2,270.5$467.3$326.3$10,002.2$
TotalEnergy 1,428,850.921,234,421.461,217,841.831,168,470.781,353,816.911,602,921.811,927,228.251,763,858.901,373,841.601,218,929.601,251,370.221,476,224.9917,017,777.27
TotalNPSE 57,096.7$36,150.4$35,874.8$28,486.0$24,758.9$44,794.7$60,433.7$62,615.1$42,121.5$38,508.1$50,866.9$57,643.3$541,443.0$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 52 of 76
2006
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 965,495.3838,056.2983,174.41,109,570.61,213,641.11,101,975.6767,329.9576,398.7572,030.2442,225.4367,035.5480,507.99,417,440.8
BridgerCoal
Energy(MWh) 125,632.973,901.034,245.238,101.648,873.289,393.9157,355.1229,303.9220,699.3226,723.7234,123.9250,686.71,729,040.25
Expense($x1000) 3,929.37$2,410.86$1,300.83$1,401.56$1,951.46$3,177.48$5,153.80$7,224.72$6,956.82$7,150.35$7,343.36$7,840.28$55,840.89$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ27,813.437,198.2 Ͳ162.039,481.145,810.2150,586.6
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,302.64$1,738.78$ Ͳ$7.67$1,840.54$2,122.66$7,018.0$
BridgerGas
Energy(MWh)Ͳ40,938.9 Ͳ2,043.71,399.02,144.216,509.121,323.712,214.522,745.1 Ͳ Ͳ119,318.1
Expense($x1000)Ͳ$1,422.64$ Ͳ$86.76$51.78$88.11$744.75$978.30$512.07$945.76$ Ͳ$ Ͳ$4,830.2$
LangleyGulch
Energy(MWh) 41,948.546,566.0 Ͳ Ͳ Ͳ37,530.9215,104.9216,433.6212,369.7221,791.6185,895.6157,792.41,335,433.3
Expense($x1000) 3,169.71$1,215.60$ Ͳ$ Ͳ$ Ͳ$1,063.14$6,906.49$7,474.16$6,749.17$7,151.85$12,278.54$15,289.31$61,298.0$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ61.686,587.270,887.01,461.1 Ͳ328.012,320.1171,645.0
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2.75$4,338.92$3,830.32$69.10$ Ͳ$35.58$1,801.96$10,078.6$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ33,001.927,655.44,334.5 Ͳ2,308.83,020.570,321.1
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,668.24$1,507.68$211.37$ Ͳ$246.19$433.89$4,067.4$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 44,081.926,134.38,071.4128.23,773.047,653.6231,834.9214,263.770,070.659,358.1185,092.6277,593.11,168,055.3
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 119,854.190,362.890,514.985,467.694,526.1137,739.8326,187.3302,749.0145,667.2131,754.7254,358.6347,393.62,126,575.7
MarketExpense($x1000 1,902.13$796.42$208.15$3.66$91.64$1,296.84$7,280.27$7,721.20$2,362.29$2,098.51$6,854.52$11,984.10$42,599.7$
MarketExpenseͲNoWheeling($x1000 1,572.87$601.21$147.86$2.70$63.46$940.90$5,548.62$6,120.79$1,838.91$1,655.14$5,472.00$9,910.66$33,875.1$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 7,331.1$5,046.1$5,400.5$4,954.7$4,845.3$5,388.4$10,026.3$10,463.4$5,832.9$6,174.3$10,666.9$15,346.2$91,476.2$
Storage
BlackMesaBatteryEnergy(MWh (1,223.19)(1,040.06)(1,311.4)(1,195.4)(993.8)(872.3)(889.7)(853.2)(779.3)(916.7)(897.6)(1,074.1)(12,046.8)
80MWGridBatteryEnergy(MWh (2,443.54)(2,057.61)(2,640.7)(2,351.7)(1,970.8)(1,756.5)(1,752.3)(1,713.8)(1,548.6)(1,817.3)(1,746.5)(2,085.9)(23,885.3)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 53 of 76
11MWGridBatteryEnergy(MWh (342.26)(280.79)(337.9)(305.4)(267.0)(232.3)(245.0)(230.9)(206.5)(248.8)(226.9)(266.8)(3,190.5)
TotalStorage(MWh (4,009.0)(3,378.5)(4,290.0)(3,852.5)(3,231.6)(2,861.1)(2,887.0)(2,797.9)(2,534.4)(2,982.8)(2,871.0)(3,426.8)(39,122.6)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 22,989.878,011.0132,019.9351,536.4315,076.983,514.94,065.55,199.727,325.245,756.17,241.1998.11,073,734.6
Revenue($x1000) 1,111.6$3,034.6$3,706.3$10,010.9$8,220.4$2,540.0$205.5$271.1$1,129.0$1,798.2$370.1$57.7$32,455.3$
RevenueͲNoWheeling($x1000) 939.8$2,451.9$2,720.2$7,385.2$5,866.9$1,916.2$175.1$232.3$924.9$1,456.5$316.0$50.2$24,435.2$
TotalEnergy 1,428,850.961,234,421.461,217,841.841,168,470.781,353,816.911,602,921.841,927,228.241,763,858.891,373,841.591,218,929.581,251,370.201,476,224.9817,017,777.27
TotalNPSE 29,820.6$25,479.5$17,823.2$13,545.4$16,070.0$30,797.8$55,302.7$57,409.6$37,703.0$36,696.7$49,071.2$61,142.2$438,882.1$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 54 of 76
2007
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 627,408.0652,046.7712,213.4636,254.8663,358.6627,434.1560,698.2467,516.9514,749.6417,003.2364,336.8434,099.56,677,119.9
BridgerCoal
Energy(MWh) 125,632.989,010.559,748.357,629.959,518.4117,084.8187,608.0247,436.1242,600.0246,751.7242,600.0250,686.71,926,307.35
Expense($x1000) 3,929.37$2,845.45$2,034.36$1,963.24$2,257.86$3,974.50$6,024.52$7,746.71$7,587.37$7,726.95$7,587.37$7,840.28$61,517.98$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ42,200.045,610.520,101.5684.843,601.058,084.8210,404.0
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,964.42$2,113.75$937.37$31.53$2,024.18$2,672.25$9,749.3$
BridgerGas
Energy(MWh)Ͳ22,500.6 Ͳ951.51,379.24,270.418,690.129,621.324,561.438,502.7 Ͳ Ͳ140,477.3
Expense($x1000)Ͳ$871.75$ Ͳ$45.03$56.95$195.48$939.95$1,516.29$1,149.25$1,787.02$ Ͳ$ Ͳ$6,561.7$
LangleyGulch
Energy(MWh) 198,975.1208,835.629,857.8101,253.7228,250.5207,400.3215,730.5215,807.2214,269.0222,349.4180,460.4156,763.32,179,952.8
Expense($x1000) 15,662.07$5,921.61$1,889.90$3,341.55$6,479.43$6,365.60$7,575.85$8,158.85$7,446.08$7,843.00$13,295.57$16,774.01$100,753.5$
Danskin
Energy(MWh) 642.7 Ͳ Ͳ Ͳ Ͳ45,454.1134,575.8124,888.11,679.51,905.8758.019,380.0329,284.0
Expense($x1000) 83.96$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,148.19$7,517.86$7,478.66$86.20$110.14$89.42$3,129.59$20,644.0$
BennettMountain
Energy(MWh) 4,119.4 Ͳ Ͳ Ͳ Ͳ22,762.689,994.868,130.62,987.1 Ͳ850.62,013.7190,858.7
Expense($x1000) 530.24$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,103.48$5,028.44$4,082.31$163.52$ Ͳ$99.95$318.99$11,326.9$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 198,013.528,439.7108,830.347,885.454,629.3179,236.3284,764.6194,617.578,484.361,247.9182,641.5306,351.81,725,142.2
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 273,785.792,668.2191,273.8133,224.8145,382.4269,322.6379,117.1283,102.9154,080.9133,644.4251,907.6376,152.32,683,662.6
MarketExpense($x1000 9,431.85$867.14$2,950.50$1,346.24$1,347.51$5,281.83$10,542.81$7,944.03$3,075.31$2,454.54$7,526.56$14,502.63$67,271.0$
MarketExpenseͲNoWheeling($x1000 7,952.82$654.71$2,137.61$988.57$939.47$3,943.05$8,415.81$6,490.37$2,489.08$1,997.06$6,162.35$12,214.38$54,385.3$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 13,711.1$5,099.6$7,390.2$5,940.6$5,721.3$8,390.6$12,893.5$10,832.9$6,483.1$6,516.2$11,357.3$17,649.9$111,986.4$
Storage
BlackMesaBatteryEnergy(MWh (1,268.79)(772.27)(1,121.7)(1,038.7)(907.1)(847.4)(868.4)(865.8)(843.0)(945.0)(921.0)(1,120.9)(11,520.1)
80MWGridBatteryEnergy(MWh (2,514.64)(1,524.16)(2,215.4)(2,125.3)(1,788.5)(1,694.4)(1,736.7)(1,708.3)(1,641.8)(1,886.9)(1,767.1)(2,194.7)(22,797.9)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 55 of 76
11MWGridBatteryEnergy(MWh (338.40)(213.57)(282.7)(272.4)(243.3)(221.5)(240.7)(232.9)(221.5)(260.1)(228.4)(286.1)(3,041.4)
TotalStorage(MWh (4,121.8)(2,510.0)(3,619.8)(3,436.4)(2,938.9)(2,763.3)(2,845.8)(2,806.9)(2,706.2)(3,092.0)(2,916.6)(3,601.7)(37,359.4)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 510.154,116.117,849.046,083.754,819.48,495.52,832.55,354.633,405.761,086.58,178.4472.0293,203.6
Revenue($x1000) 29.9$2,188.7$700.9$1,736.6$1,815.9$355.3$149.4$315.8$1,606.4$2,824.1$458.5$30.4$12,211.9$
RevenueͲNoWheeling($x1000) 26.1$1,784.5$567.6$1,392.4$1,406.5$291.9$128.3$275.8$1,356.9$2,367.8$397.4$26.9$10,021.8$
TotalEnergy 1,428,850.931,234,421.471,217,841.831,168,470.801,353,816.911,602,921.821,927,228.241,763,858.891,373,841.601,218,929.591,251,370.201,476,224.9617,017,777.24
TotalNPSE 50,388.8$30,968.7$25,441.7$26,667.1$30,141.4$45,440.4$67,162.1$66,077.2$40,747.0$38,255.8$51,025.4$66,720.2$541,225.9$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 56 of 76
2008
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 497,754.8516,053.1650,723.0847,638.7875,471.5879,557.2666,727.3616,656.0505,170.3438,387.0369,264.7431,758.47,295,162.0
BridgerCoal
Energy(MWh) 125,632.9101,278.351,676.749,365.160,239.9112,064.0173,663.7247,648.4240,087.2240,827.5242,600.0250,686.71,895,770.36
Expense($x1000) 3,929.37$3,198.30$1,802.20$1,725.52$2,278.56$3,829.97$5,623.18$7,752.81$7,515.00$7,556.37$7,587.37$7,840.28$60,638.93$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ43,089.646,995.833,090.68,097.341,076.656,378.5228,850.0
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,002.39$2,178.19$1,555.69$378.08$1,911.66$2,596.19$10,628.0$
BridgerGas
Energy(MWh)Ͳ41,045.1 Ͳ4,140.0 Ͳ2,208.622,239.139,903.09,598.519,642.5 Ͳ Ͳ138,776.7
Expense($x1000)Ͳ$1,569.13$ Ͳ$193.12$ Ͳ$99.74$1,103.58$2,016.44$443.10$899.12$ Ͳ$ Ͳ$6,324.2$
LangleyGulch
Energy(MWh) 200,190.6208,930.1115,625.6 Ͳ Ͳ136,023.0215,594.7215,834.7212,628.7221,203.8180,248.6156,160.91,862,440.8
Expense($x1000) 15,509.05$5,851.76$6,933.10$ Ͳ$ Ͳ$4,125.94$7,476.50$8,056.95$7,298.52$7,706.15$13,112.96$16,520.89$92,591.8$
Danskin
Energy(MWh) 41,926.2128.9 Ͳ Ͳ Ͳ1,688.0112,253.349,091.3 Ͳ Ͳ678.516,588.2222,354.4
Expense($x1000) 5,373.80$5.99$ Ͳ$ Ͳ$ Ͳ$76.94$6,171.58$2,860.30$ Ͳ$ Ͳ$80.00$2,641.75$17,210.4$
BennettMountain
Energy(MWh) 7,739.4 Ͳ Ͳ Ͳ Ͳ4,015.257,699.221,734.01,363.7 Ͳ243.05,034.297,828.7
Expense($x1000) 982.74$ Ͳ$ Ͳ$ Ͳ$ Ͳ$183.93$3,173.03$1,279.80$71.05$ Ͳ$28.17$786.63$6,505.4$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 281,078.3107,593.8103,639.35,641.054,898.6101,979.0244,798.3161,391.281,286.650,510.9180,093.9310,593.41,683,504.3
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 356,850.4171,822.4186,082.890,980.4145,651.7192,065.2339,150.8249,876.6156,883.2122,907.4249,360.0380,393.82,642,024.7
MarketExpense($x1000 13,784.37$3,600.88$2,710.76$149.20$1,369.69$2,803.78$8,578.87$6,421.70$3,019.68$1,967.16$7,347.02$14,637.20$66,390.3$
MarketExpenseͲNoWheeling($x1000 11,684.90$2,797.23$1,936.64$107.07$959.63$2,042.06$6,750.39$5,216.21$2,412.52$1,589.88$6,001.84$12,317.27$53,815.6$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 17,443.2$7,242.2$7,189.3$5,059.1$5,741.5$6,489.6$11,228.1$9,558.8$6,406.5$6,109.1$11,196.8$17,752.8$111,416.8$
Storage
BlackMesaBatteryEnergy(MWh (1,271.44)(918.00)(1,061.3)(1,065.0)(890.5)(868.0)(882.7)(870.5)(807.7)(916.8)(912.1)(1,095.0)(11,559.0)
80MWGridBatteryEnergy(MWh (2,553.44)(1,877.67)(2,100.8)(2,160.1)(1,792.5)(1,730.9)(1,751.0)(1,745.4)(1,619.1)(1,826.2)(1,755.9)(2,190.8)(23,103.8)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 57 of 76
11MWGridBatteryEnergy(MWh (337.14)(240.23)(264.4)(283.6)(235.5)(228.3)(241.1)(238.9)(206.9)(247.7)(230.4)(269.4)(3,023.6)
TotalStorage(MWh (4,162.0)(3,035.9)(3,426.5)(3,508.7)(2,918.5)(2,827.2)(2,874.8)(2,854.8)(2,633.7)(2,990.6)(2,898.5)(3,555.2)(37,686.4)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 0.527,786.629,057.1108,820.938,313.742,324.04,606.710,932.917,271.551,411.37,153.4338.9338,017.6
Revenue($x1000) 0.0$1,285.3$1,101.8$3,982.7$1,235.7$1,469.8$247.7$637.8$746.9$2,108.8$376.7$20.3$13,213.4$
RevenueͲNoWheeling($x1000) 0.0$1,077.7$884.8$3,169.9$949.5$1,153.7$213.3$556.1$617.9$1,724.8$323.2$17.8$10,688.7$
TotalEnergy 1,428,850.941,234,421.471,217,841.821,168,470.791,353,816.921,602,921.841,927,228.231,763,858.851,373,841.591,218,929.611,251,370.201,476,224.9917,017,777.25
TotalNPSE 59,740.1$35,001.0$29,650.9$20,108.3$24,226.2$36,954.2$61,897.7$57,528.9$41,043.5$37,605.0$50,570.4$66,483.8$523,334.7$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 58 of 76
2009
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 632,112.3631,888.0829,949.41,107,615.11,040,748.31,118,188.1734,454.0630,979.7508,909.6442,960.4373,023.8440,438.78,491,267.4
BridgerCoal
Energy(MWh) 125,632.989,328.045,232.942,610.255,051.899,182.1170,866.9239,011.9241,145.2240,402.6242,280.9250,686.71,841,431.99
Expense($x1000) 3,929.37$2,854.58$1,616.86$1,531.24$2,129.22$3,459.23$5,542.71$7,504.19$7,545.48$7,544.16$7,578.18$7,840.28$59,075.50$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ41,809.845,345.637,845.3483.240,269.250,649.3216,523.9
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,945.35$2,104.63$1,767.63$22.21$1,875.67$2,340.71$10,062.0$
BridgerGas
Energy(MWh)Ͳ36,975.0 Ͳ919.41,195.93,315.824,069.730,711.225,373.123,176.2 Ͳ Ͳ145,736.2
Expense($x1000)Ͳ$1,389.58$ Ͳ$42.14$47.85$147.04$1,173.88$1,523.66$1,151.21$1,042.75$ Ͳ$ Ͳ$6,518.1$
LangleyGulch
Energy(MWh) 200,965.1208,920.8 Ͳ Ͳ Ͳ33,423.4215,508.6215,899.6213,899.1221,771.5177,966.8155,183.41,643,538.4
Expense($x1000) 15,302.36$5,768.77$ Ͳ$ Ͳ$ Ͳ$1,006.67$7,365.39$7,941.65$7,234.33$7,613.26$12,826.99$16,218.55$81,278.0$
Danskin
Energy(MWh) 833.7 Ͳ Ͳ Ͳ Ͳ Ͳ84,841.742,119.361.71,248.7678.514,651.6144,435.0
Expense($x1000) 105.88$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$4,552.19$2,411.57$3.40$70.01$78.73$2,295.42$9,517.2$
BennettMountain
Energy(MWh) 2,246.9 Ͳ Ͳ Ͳ Ͳ Ͳ43,097.121,734.91,136.4 Ͳ243.04,404.972,863.3
Expense($x1000) 280.84$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,319.00$1,260.23$57.07$ Ͳ$27.73$677.46$4,622.3$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 193,085.239,474.657,305.0137.110,091.538,876.1222,945.9172,328.175,946.050,420.0180,298.0311,190.21,352,097.6
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 268,857.4103,703.1139,748.585,476.4100,844.6128,962.3317,298.3260,813.5151,542.6122,816.5249,564.0380,990.62,310,617.9
MarketExpense($x1000 9,094.72$1,207.47$1,450.91$3.70$256.19$1,117.19$7,619.24$6,679.39$2,897.67$1,951.07$7,055.91$14,386.25$53,719.7$
MarketExpenseͲNoWheeling($x1000 7,652.50$912.62$1,022.88$2.68$180.81$826.81$5,953.98$5,392.21$2,330.40$1,574.47$5,709.20$12,061.87$43,620.4$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 13,410.8$5,357.6$6,275.5$4,954.7$4,962.7$5,274.3$10,431.7$9,734.8$6,324.4$6,093.7$10,904.1$17,497.4$101,221.5$
Storage
BlackMesaBatteryEnergy(MWh (1,266.41)(944.83)(1,059.0)(1,188.8)(1,029.6)(859.6)(875.7)(875.3)(823.6)(914.8)(873.6)(1,070.1)(11,781.2)
80MWGridBatteryEnergy(MWh (2,512.58)(1,795.76)(2,118.4)(2,412.5)(2,053.1)(1,733.7)(1,751.0)(1,736.9)(1,616.7)(1,832.6)(1,667.7)(2,106.2)(23,337.1)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 59 of 76
11MWGridBatteryEnergy(MWh (338.59)(245.51)(268.5)(318.8)(276.9)(228.6)(241.2)(237.2)(217.3)(255.4)(210.7)(262.9)(3,101.5)
TotalStorage(MWh (4,117.6)(2,986.1)(3,445.8)(3,920.1)(3,359.6)(2,821.9)(2,867.9)(2,849.4)(2,657.6)(3,002.8)(2,751.9)(3,439.2)(38,219.9)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 598.859,393.439,860.4352,906.5154,350.297,779.76,142.09,814.338,338.353,192.77,854.9459.5820,690.7
Revenue($x1000) 37.6$2,566.3$1,347.5$10,493.3$4,477.0$3,067.4$317.3$553.1$1,777.4$2,167.6$417.4$29.1$27,251.0$
RevenueͲNoWheeling($x1000) 33.1$2,122.7$1,049.8$7,857.3$3,324.1$2,337.1$271.4$479.8$1,491.1$1,770.3$358.7$25.6$21,121.0$
TotalEnergy 1,428,850.941,234,421.471,217,841.821,168,470.791,353,816.921,602,921.831,927,228.241,763,858.881,373,841.581,218,929.571,251,370.181,476,224.9717,017,777.19
TotalNPSE 49,493.6$31,223.1$21,373.0$13,148.1$20,104.5$30,437.8$58,379.9$56,391.0$40,806.6$37,283.4$49,904.2$65,206.3$479,881.5$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 60 of 76
2010
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 648,189.0621,083.7657,025.5663,823.6837,985.51,014,381.1594,717.3504,228.0513,470.7442,434.0368,534.7512,325.17,378,198.2
BridgerCoal
Energy(MWh) 125,632.893,350.954,423.563,353.559,318.8109,922.9181,214.9245,312.5240,288.0238,360.1242,600.0250,686.71,904,464.58
Expense($x1000) 3,929.37$2,970.29$1,881.21$2,127.87$2,252.08$3,768.37$5,840.53$7,685.56$7,520.80$7,485.32$7,587.37$7,840.28$60,889.05$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ43,581.946,857.239,918.516,649.943,889.355,526.1246,544.5
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,024.34$2,172.01$1,860.04$775.44$2,037.03$2,558.20$11,432.8$
BridgerGas
Energy(MWh)Ͳ34,988.2 Ͳ25.0 Ͳ11,328.929,086.032,344.228,075.532,276.0 Ͳ Ͳ168,123.8
Expense($x1000)Ͳ$1,338.12$ Ͳ$1.16$ Ͳ$512.44$1,444.21$1,633.88$1,296.71$1,478.49$ Ͳ$ Ͳ$7,705.0$
LangleyGulch
Energy(MWh) 197,416.3208,810.197,343.322,490.39,307.457,578.7215,958.4215,895.6213,585.0221,091.8181,118.0158,172.11,798,767.0
Expense($x1000) 15,393.72$5,848.56$5,852.44$734.64$262.53$1,754.41$7,488.68$8,059.16$7,330.22$7,702.38$13,141.71$16,620.32$90,188.8$
Danskin
Energy(MWh) 129.0 Ͳ63.8 Ͳ Ͳ1,326.4131,125.9107,195.0124.2 Ͳ130.31,741.3241,835.9
Expense($x1000) 16.48$ Ͳ$5.69$ Ͳ$ Ͳ$58.85$7,211.10$6,303.62$7.11$ Ͳ$15.78$277.23$13,895.9$
BennettMountain
Energy(MWh) 2,246.9 Ͳ Ͳ Ͳ Ͳ1,741.582,509.762,586.01,136.4 Ͳ1,822.73,398.1155,441.4
Expense($x1000) 285.31$ Ͳ$ Ͳ$ Ͳ$ Ͳ$80.42$4,535.51$3,702.69$57.96$ Ͳ$211.28$530.97$9,404.1$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 181,979.143,933.2111,046.771,652.776,583.759,902.6259,559.6181,794.575,028.942,159.8178,956.2246,905.51,529,502.3
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 257,751.3108,161.7193,490.2156,992.1167,336.8149,988.8353,912.1270,279.9150,625.5114,556.3248,222.2316,705.92,488,022.7
MarketExpense($x1000 8,452.25$1,373.46$2,983.30$1,961.59$1,928.59$1,761.77$9,435.98$7,290.31$2,872.56$1,611.66$7,311.74$11,489.42$58,472.6$
MarketExpenseͲNoWheeling($x1000 7,092.99$1,045.31$2,153.85$1,426.39$1,356.56$1,314.34$7,497.24$5,932.43$2,312.14$1,296.75$5,975.06$9,645.20$47,048.3$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 12,851.2$5,490.2$7,406.5$6,378.4$6,138.4$5,761.8$11,974.9$10,275.0$6,306.1$5,815.9$11,170.0$15,080.7$104,649.4$
Storage
BlackMesaBatteryEnergy(MWh (1,278.57)(879.54)(1,153.4)(1,025.8)(909.8)(865.1)(882.7)(874.5)(818.4)(944.9)(968.0)(1,101.7)(11,702.2)
80MWGridBatteryEnergy(MWh (2,460.06)(1,848.76)(2,236.1)(2,077.0)(1,775.3)(1,716.8)(1,765.0)(1,755.2)(1,630.0)(1,854.2)(1,886.9)(2,205.6)(23,211.0)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 61 of 76
11MWGridBatteryEnergy(MWh (340.57)(255.78)(293.5)(284.3)(231.1)(227.4)(243.0)(236.9)(214.7)(261.9)(248.8)(275.8)(3,113.7)
TotalStorage(MWh (4,079.2)(2,984.1)(3,683.0)(3,387.1)(2,916.2)(2,809.3)(2,890.7)(2,866.6)(2,663.0)(3,061.0)(3,103.7)(3,583.1)(38,026.9)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 1,354.454,975.027,038.823,502.730,901.660,988.96,279.37,879.745,643.865,643.59,794.11,865.6335,867.4
Revenue($x1000) 87.5$2,429.1$1,046.0$862.4$985.5$2,171.2$348.9$451.2$2,184.5$2,884.4$554.7$117.1$14,122.4$
RevenueͲNoWheeling($x1000) 77.4$2,018.5$844.1$686.9$754.6$1,715.6$302.0$392.3$1,843.6$2,394.0$481.6$103.1$11,613.7$
TotalEnergy 1,428,850.911,234,421.471,217,841.841,168,470.801,353,816.891,602,921.811,927,228.251,763,858.911,373,841.601,218,929.611,251,370.211,476,225.0017,017,777.30
TotalNPSE 48,890.6$31,637.0$28,927.9$25,493.0$25,109.3$33,383.1$65,537.4$63,844.2$40,695.0$37,438.2$50,638.6$61,156.3$515,259.2$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 62 of 76
2011
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 716,216.1809,762.21,040,628.5984,821.51,053,868.51,258,411.01,150,224.9830,461.2635,327.5473,094.5372,615.2762,177.610,087,608.6
BridgerCoal
Energy(MWh) 125,632.953,560.836,393.333,219.139,495.578,775.1118,242.0169,562.6175,893.0189,995.9221,210.5250,259.41,492,239.76
Expense($x1000) 3,929.37$1,825.83$1,362.61$1,261.12$1,681.57$2,871.85$4,027.98$5,505.13$5,667.02$6,093.13$6,971.60$7,827.97$49,025.18$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ18,621.2 Ͳ40.538,922.442,970.2100,675.8
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$876.54$ Ͳ$1.92$1,815.64$1,996.06$4,695.9$
BridgerGas
Energy(MWh)Ͳ34,429.9 Ͳ3,701.61,353.17,839.98,227.327,827.915,867.914,953.8 Ͳ Ͳ114,201.4
Expense($x1000)Ͳ$1,142.07$ Ͳ$149.95$47.85$307.66$354.10$1,219.33$635.46$593.38$ Ͳ$ Ͳ$4,449.8$
LangleyGulch
Energy(MWh) 188,759.4101,344.4 Ͳ Ͳ Ͳ13,764.2203,021.5215,220.0210,191.1220,979.4179,009.155,201.91,387,491.0
Expense($x1000) 13,234.26$2,539.60$ Ͳ$ Ͳ$ Ͳ$376.49$6,268.60$7,140.51$6,421.72$6,847.69$11,390.50$5,115.30$59,334.7$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ61.6396.8185.11,665.11,971.665.1 Ͳ4,345.2
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2.63$20.17$10.12$81.89$98.57$6.92$ Ͳ$220.3$
BennettMountain
Energy(MWh) 249.7 Ͳ Ͳ Ͳ Ͳ Ͳ2,228.31,958.9 Ͳ Ͳ2,673.4 Ͳ7,110.2
Expense($x1000) 27.91$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$103.39$98.05$ Ͳ$ Ͳ$272.96$ Ͳ$502.3$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 130,273.026,373.92,233.6978.89,165.831,395.588,774.2142,414.460,460.562,129.2199,316.6124,351.0877,866.4
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 206,045.290,602.484,677.286,318.299,918.9121,481.7183,126.7230,899.8136,057.2134,525.7268,582.6194,151.41,836,386.8
MarketExpense($x1000 5,080.34$765.15$54.76$26.48$216.99$869.01$2,805.24$4,600.89$1,833.74$1,986.10$7,120.70$4,834.03$30,193.4$
MarketExpenseͲNoWheeling($x1000 4,107.29$568.15$38.08$19.17$148.53$634.51$2,142.16$3,537.15$1,382.14$1,522.04$5,631.94$3,905.21$23,636.3$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 9,865.5$5,013.1$5,290.7$4,971.2$4,930.4$5,082.0$6,619.8$7,879.7$5,376.1$6,041.2$10,826.9$9,340.8$81,237.5$
Storage
BlackMesaBatteryEnergy(MWh (1,077.45)(931.87)(1,426.8)(1,080.9)(990.7)(865.4)(880.1)(869.8)(777.2)(866.9)(892.4)(1,069.3)(11,728.8)
80MWGridBatteryEnergy(MWh (2,100.96)(1,956.82)(2,851.1)(2,145.5)(1,966.9)(1,744.4)(1,759.1)(1,736.4)(1,538.1)(1,689.3)(1,753.7)(2,120.2)(23,362.4)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 63 of 76
11MWGridBatteryEnergy(MWh (290.67)(247.29)(371.7)(287.2)(261.6)(228.5)(243.3)(234.9)(207.5)(232.9)(219.4)(279.6)(3,104.6)
TotalStorage(MWh (3,469.1)(3,136.0)(4,649.5)(3,513.5)(3,219.2)(2,838.3)(2,882.6)(2,841.1)(2,522.8)(2,789.2)(2,865.5)(3,469.1)(38,195.9)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 7,502.278,128.3185,424.8224,752.1151,286.0195,025.139,648.617,943.333,561.936,108.66,793.48,184.9984,359.1
Revenue($x1000) 408.3$2,781.1$5,089.4$6,237.9$3,819.1$5,133.2$1,246.1$879.3$1,389.3$1,405.5$328.5$455.1$29,172.6$
RevenueͲNoWheeling($x1000) 352.2$2,197.6$3,704.3$4,559.1$2,689.1$3,676.5$949.9$745.2$1,138.6$1,135.7$277.8$394.0$21,820.1$
TotalEnergy 1,428,850.961,234,421.481,217,841.831,168,470.801,353,816.911,602,921.841,927,228.241,763,858.871,373,841.601,218,929.601,251,370.201,476,224.9617,017,777.29
TotalNPSE 43,150.8$26,158.3$16,392.1$17,257.7$20,282.5$27,125.4$41,515.0$46,313.6$35,293.4$35,335.5$47,986.1$42,190.6$406,353.4$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 64 of 76
a
2012
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 1,139,742.11,009,320.71,010,613.1970,253.1720,629.3671,525.7736,201.3541,931.2581,497.4428,371.3361,968.2450,863.38,622,916.6
BridgerCoal
Energy(MWh) 125,632.953,303.039,253.539,841.760,076.1103,554.6160,446.9239,992.1232,091.6230,158.8240,565.9250,686.71,775,603.62
Expense($x1000) 3,929.37$1,818.41$1,444.88$1,451.61$2,273.91$3,585.04$5,242.79$7,532.40$7,284.77$7,249.22$7,528.80$7,840.28$57,181.48$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ34,376.642,965.0 Ͳ162.044,697.851,618.7173,941.6
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,613.35$1,995.83$ Ͳ$7.67$2,073.07$2,381.56$8,077.2$
BridgerGas
Energy(MWh)Ͳ31,337.4 Ͳ974.1507.71,871.312,628.432,386.07,906.122,575.0 Ͳ Ͳ110,186.0
Expense($x1000)Ͳ$1,120.40$ Ͳ$42.45$19.29$79.09$586.01$1,529.05$340.96$965.66$ Ͳ$ Ͳ$4,682.9$
LangleyGulch
Energy(MWh) 5,170.7 Ͳ Ͳ Ͳ201,777.5209,101.1215,180.2216,649.0211,339.9221,923.6185,271.6161,693.21,628,106.8
Expense($x1000) 422.59$ Ͳ$ Ͳ$ Ͳ$5,359.01$5,997.88$7,057.39$7,643.69$6,862.11$7,310.06$12,543.84$15,822.85$69,019.4$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ33,968.8103,315.485,430.91,511.51,905.8545.516,810.7243,488.6
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,507.24$5,291.69$4,707.91$72.17$102.05$61.13$2,524.26$14,266.5$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ10,626.635,771.453,218.84,294.0 Ͳ850.61,510.3106,271.7
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$477.03$1,851.17$2,954.50$214.84$ Ͳ$92.82$222.05$5,812.4$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 7,122.92,188.44,231.71,038.336,174.1175,564.8236,925.9183,632.454,301.865,695.0181,946.6294,366.61,243,188.6
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 82,895.166,417.086,675.286,377.7126,927.2265,651.0331,278.4272,117.8129,898.4138,091.6251,212.7364,167.12,201,709.0
MarketExpense($x1000 339.21$68.00$104.72$28.43$882.98$4,846.84$7,681.83$6,911.09$1,889.15$2,401.49$7,214.34$13,406.07$45,774.2$
MarketExpenseͲNoWheeling($x1000 286.01$51.65$73.11$20.67$612.78$3,535.49$5,912.15$5,539.48$1,483.55$1,910.79$5,855.32$11,207.35$36,488.4$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 6,044.3$4,496.6$5,325.7$4,972.7$5,394.6$7,983.0$10,389.8$9,882.0$5,477.5$6,430.0$11,050.3$16,642.9$94,089.5$
Storage
BlackMesaBatteryEnergy(MWh (1,281.67)(1,151.23)(1,312.2)(1,176.4)(955.4)(845.3)(880.4)(866.6)(791.0)(919.3)(986.3)(1,118.7)(12,284.4)
80MWGridBatteryEnergy(MWh (2,616.81)(2,365.76)(2,617.4)(2,344.6)(1,922.5)(1,685.5)(1,762.2)(1,736.8)(1,559.0)(1,889.1)(1,918.5)(2,246.4)(24,664.6)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 65 of 76
11MWGridBatteryEnergy(MWh (344.84)(295.39)(348.4)(315.4)(246.5)(224.3)(241.5)(231.3)(213.2)(252.9)(249.9)(286.7)(3,250.3)
TotalStorage(MWh (4,243.3)(3,812.4)(4,278.0)(3,836.4)(3,124.5)(2,755.1)(2,884.1)(2,834.7)(2,563.1)(3,061.3)(3,154.7)(3,651.9)(40,199.3)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 123,265.7148,130.2160,639.3213,815.566,662.511,073.83,378.37,903.827,058.943,463.48,538.1591.4814,520.9
Revenue($x1000) 5,532.4$5,188.3$4,704.2$6,248.2$2,044.5$385.6$177.4$447.9$1,053.6$1,711.7$471.3$37.8$28,002.7$
RevenueͲNoWheeling($x1000) 4,611.7$4,081.9$3,504.3$4,651.1$1,546.6$302.9$152.1$388.9$851.5$1,387.0$407.5$33.4$21,918.8$
TotalEnergy 1,428,850.931,234,421.471,217,841.831,168,470.811,353,816.911,602,921.811,927,228.241,763,858.891,373,841.601,218,929.611,251,370.201,476,224.9917,017,777.29
TotalNPSE 21,365.8$20,666.0$16,894.6$17,331.9$28,444.1$42,861.6$57,221.9$60,260.9$37,699.3$37,418.0$49,908.8$63,761.7$459,918.5$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 66 of 76
2013
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 478,267.1528,065.9440,890.2493,061.6568,572.6629,598.1522,814.4420,474.8450,038.6422,196.4369,506.5423,562.55,747,048.8
BridgerCoal
Energy(MWh) 125,632.9105,206.163,822.776,356.962,965.3124,458.7195,676.5250,575.7242,600.0247,592.1242,600.0250,686.71,988,173.52
Expense($x1000) 3,929.37$3,311.28$2,151.55$2,501.88$2,357.06$4,186.77$6,256.72$7,837.08$7,587.37$7,751.16$7,587.37$7,840.28$63,297.89$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ44,227.445,612.339,212.210,350.743,274.263,809.5246,607.9
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,052.10$2,115.18$1,828.55$483.79$2,009.61$2,927.53$11,422.5$
BridgerGas
Energy(MWh)Ͳ35,615.6 Ͳ382.9100.62,770.327,650.633,990.921,673.413,899.8 Ͳ Ͳ136,084.3
Expense($x1000)Ͳ$1,403.41$ Ͳ$18.39$4.20$128.91$1,415.45$1,770.42$1,031.55$655.51$ Ͳ$ Ͳ$6,427.8$
LangleyGulch
Energy(MWh) 202,642.6208,931.2165,612.5212,515.7228,507.8207,474.8216,044.6215,835.9214,464.4221,671.4181,957.8159,934.02,435,592.6
Expense($x1000) 16,056.84$6,006.94$10,202.97$7,098.33$6,576.64$6,457.37$7,695.02$8,277.52$7,559.23$7,931.81$13,545.95$17,190.63$114,599.3$
Danskin
Energy(MWh) 48,899.3327.0541.6 Ͳ Ͳ42,768.4141,443.2130,823.710,034.9 Ͳ678.520,450.6395,967.2
Expense($x1000) 6,465.58$15.04$50.03$ Ͳ$ Ͳ$2,050.96$8,023.86$7,983.46$528.30$ Ͳ$82.39$3,345.90$28,545.5$
BennettMountain
Energy(MWh) 14,854.6 Ͳ1,401.7 Ͳ Ͳ21,286.195,405.882,147.72,289.0 Ͳ243.02,643.0220,270.9
Expense($x1000) 1,941.64$ Ͳ$129.38$ Ͳ$ Ͳ$1,052.48$5,377.77$5,010.95$122.42$ Ͳ$29.00$425.17$14,088.8$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 284,039.097,934.5229,268.655,413.2115,819.4174,951.3291,496.4216,048.7112,590.957,134.1176,726.8306,312.12,117,735.1
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 359,811.2162,163.0311,712.2140,752.6206,572.5265,037.5385,848.9304,534.1188,187.5129,530.7245,992.8376,112.53,076,255.5
MarketExpense($x1000 14,413.13$3,335.09$6,648.69$1,595.29$3,008.62$5,197.21$11,239.79$8,973.82$4,422.58$2,286.89$7,297.76$15,039.39$83,458.3$
MarketExpenseͲNoWheeling($x1000 12,291.55$2,603.58$4,936.21$1,181.39$2,143.53$3,890.44$9,062.50$7,360.08$3,581.60$1,860.14$5,977.73$12,751.44$67,640.2$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 18,049.8$7,048.5$10,188.8$6,133.4$6,925.4$8,337.9$13,540.2$11,702.6$7,575.6$6,379.3$11,172.7$18,187.0$125,241.3$
Storage
BlackMesaBatteryEnergy(MWh (1,281.01)(864.70)(1,140.3)(1,121.0)(872.7)(851.2)(873.1)(888.2)(832.5)(902.6)(934.7)(1,119.7)(11,681.6)
80MWGridBatteryEnergy(MWh (2,550.74)(1,790.44)(2,301.9)(2,235.0)(1,774.2)(1,708.5)(1,737.7)(1,778.6)(1,656.4)(1,838.4)(1,880.3)(2,198.3)(23,450.5)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 67 of 76
11MWGridBatteryEnergy(MWh (344.08)(228.96)(295.2)(310.5)(227.5)(222.5)(242.9)(238.7)(212.6)(248.2)(239.2)(288.4)(3,098.8)
TotalStorage(MWh (4,175.8)(2,884.1)(3,737.4)(3,666.4)(2,874.5)(2,782.2)(2,853.7)(2,905.5)(2,701.5)(2,989.2)(3,054.2)(3,606.5)(38,230.9)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh)Ͳ28,989.38,618.939,608.623,713.58,141.53,321.57,137.426,881.745,588.37,779.3485.8200,265.9
Revenue($x1000)Ͳ$1,356.6$332.8$1,424.9$782.5$319.8$184.7$410.2$1,314.7$1,836.3$429.2$33.1$8,424.7$
RevenueͲNoWheeling($x1000)Ͳ$1,140.1$268.4$1,129.1$605.4$259.0$159.9$356.9$1,114.0$1,495.7$371.1$29.4$6,928.9$
TotalEnergy 1,428,850.931,234,421.471,217,841.831,168,470.791,353,816.921,602,921.841,927,228.251,763,858.921,373,841.601,218,929.591,251,370.201,476,225.0017,017,777.34
TotalNPSE 62,945.2$34,847.5$37,218.2$31,440.4$32,522.5$45,512.6$69,543.4$68,750.5$43,418.8$38,430.3$51,028.0$68,249.0$585,402.2$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 68 of 76
2014
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 446,750.2501,595.4629,767.2715,976.8690,263.4589,505.2654,006.7541,110.2470,566.3426,309.4367,074.2499,036.86,531,961.8
BridgerCoal
Energy(MWh) 125,632.899,964.345,472.466,433.160,377.9117,524.2175,881.1250,611.3241,402.1244,528.6242,600.0250,686.71,921,114.59
Expense($x1000) 3,929.37$3,160.51$1,623.75$2,216.44$2,282.54$3,987.15$5,687.03$7,838.11$7,552.88$7,662.93$7,587.37$7,840.28$61,368.36$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ162.042,390.644,561.938,856.79,913.443,191.954,592.3233,790.4
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$7.67$1,971.24$2,067.01$1,812.71$461.72$2,005.94$2,516.57$10,848.6$
BridgerGas
Energy(MWh)Ͳ26,042.6 Ͳ1,258.3899.14,470.321,464.934,175.421,894.233,870.8 Ͳ Ͳ144,075.6
Expense($x1000)Ͳ$997.83$ Ͳ$58.73$36.66$202.34$1,067.85$1,730.69$1,013.08$1,554.80$ Ͳ$ Ͳ$6,662.0$
LangleyGulch
Energy(MWh) 200,769.8209,050.4128,154.3 Ͳ216,534.7207,360.7215,546.8215,740.6214,067.3222,263.7181,748.1158,004.02,169,240.5
Expense($x1000) 15,557.57$5,865.31$7,759.52$ Ͳ$6,086.07$6,297.30$7,488.43$8,068.23$7,359.51$7,755.87$13,191.73$16,644.04$102,073.6$
Danskin
Energy(MWh) 63,186.81,240.8 Ͳ Ͳ Ͳ56,835.4121,891.393,563.0185.0 Ͳ162.91,547.7338,612.7
Expense($x1000) 8,149.55$55.75$ Ͳ$ Ͳ$ Ͳ$2,674.93$6,710.84$5,510.00$10.39$ Ͳ$19.76$246.58$23,377.8$
BennettMountain
Energy(MWh) 24,841.0298.1 Ͳ Ͳ Ͳ24,762.166,561.636,639.81,526.0 Ͳ1,701.21,636.1157,965.9
Expense($x1000) 3,160.47$12.95$ Ͳ$ Ͳ$ Ͳ$1,197.44$3,678.46$2,164.05$79.49$ Ͳ$197.58$256.16$10,746.6$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 293,059.1126,213.6112,612.650,693.243,505.3201,814.8239,228.7181,583.7105,536.552,548.8179,909.7263,686.71,850,392.6
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 368,831.3190,442.2195,056.2136,032.6134,258.4291,901.0333,581.2270,069.1181,133.1124,945.3249,175.7333,487.12,808,913.0
MarketExpense($x1000 14,302.59$4,233.61$2,930.32$1,414.49$1,084.21$5,798.19$8,451.16$7,251.63$4,069.57$2,089.99$7,299.07$12,186.59$71,111.4$
MarketExpenseͲNoWheeling($x1000 12,113.63$3,290.88$2,089.18$1,035.85$759.25$4,290.77$6,664.28$5,895.32$3,281.28$1,697.49$5,955.26$10,217.03$57,290.2$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 17,871.9$7,735.8$7,341.8$5,987.9$5,541.1$8,738.3$11,142.0$10,237.9$7,275.3$6,216.7$11,150.2$15,652.6$114,891.3$
Storage
BlackMesaBatteryEnergy(MWh (1,241.42)(831.36)(927.7)(1,059.4)(992.3)(852.3)(882.8)(868.2)(820.7)(951.0)(940.1)(1,141.7)(11,509.0)
80MWGridBatteryEnergy(MWh (2,504.21)(1,624.58)(1,782.5)(2,123.3)(1,972.8)(1,705.2)(1,765.2)(1,736.5)(1,681.9)(1,928.6)(1,888.1)(2,251.6)(22,964.3)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 69 of 76
11MWGridBatteryEnergy(MWh (334.39)(206.71)(229.1)(279.2)(267.3)(226.4)(243.1)(236.9)(212.8)(265.8)(244.3)(286.9)(3,032.8)
TotalStorage(MWh (4,080.0)(2,662.7)(2,939.3)(3,461.9)(3,232.5)(2,783.9)(2,891.1)(2,841.5)(2,715.4)(3,145.4)(3,072.5)(3,680.2)(37,506.2)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh)Ͳ17,535.723,886.236,444.358,970.27,267.05,496.99,677.827,998.462,022.29,162.02,203.9260,664.6
Revenue($x1000)Ͳ$796.8$886.2$1,454.9$1,903.2$269.5$294.2$577.3$1,334.2$2,777.9$506.2$133.3$10,933.6$
RevenueͲNoWheeling($x1000)Ͳ$665.8$707.7$1,182.7$1,462.7$215.2$253.1$505.1$1,125.0$2,314.7$437.7$116.8$8,986.6$
TotalEnergy 1,428,850.911,234,421.471,217,841.831,168,470.801,353,816.911,602,921.811,927,228.251,763,858.891,373,841.591,218,929.591,251,370.201,476,224.9917,017,777.24
TotalNPSE 65,170.8$35,450.3$30,667.1$23,921.4$29,484.9$46,453.5$62,818.7$61,502.1$42,269.7$37,939.0$50,676.5$61,388.5$549,689.5$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 70 of 76
2015
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 644,246.9800,225.5607,459.9538,007.1488,825.2517,665.3643,917.1474,960.9433,859.5411,956.5364,885.7474,432.26,400,441.7
BridgerCoal
Energy(MWh) 125,632.993,983.365,175.377,850.271,178.0136,440.9205,320.9250,253.1242,600.0248,997.9242,600.0250,686.72,010,719.14
Expense($x1000) 3,929.37$2,988.48$2,190.45$2,544.83$2,593.36$4,531.66$6,534.38$7,827.79$7,587.37$7,791.64$7,587.37$7,840.28$63,946.98$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ1,498.943,131.848,359.139,946.416,623.942,407.567,853.1259,942.0
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$70.96$2,005.95$2,237.61$1,861.28$774.29$1,970.98$3,107.77$12,034.6$
BridgerGas
Energy(MWh)Ͳ36,103.4 Ͳ364.8199.87,789.120,344.431,018.518,013.816,581.0 Ͳ Ͳ130,414.7
Expense($x1000)Ͳ$1,459.17$ Ͳ$17.90$8.61$372.02$1,067.49$1,655.98$878.74$801.79$ Ͳ$ Ͳ$6,261.7$
LangleyGulch
Energy(MWh) 202,132.193,322.4134,603.8171,693.1229,360.1207,983.4215,112.8215,880.3213,963.0221,573.1182,877.3157,476.02,245,977.3
Expense($x1000) 16,361.91$2,737.63$8,585.52$5,851.87$6,724.57$6,596.01$7,811.43$8,440.93$7,688.34$8,082.27$13,858.70$17,417.26$110,156.4$
Danskin
Energy(MWh) 2,846.0 Ͳ Ͳ61.6474.373,174.6119,609.1113,971.729,526.54,731.7754.811,760.5356,910.8
Expense($x1000) 386.94$ Ͳ$ Ͳ$3.56$22.50$3,653.96$6,896.92$7,093.05$1,691.85$283.76$93.67$1,967.60$22,093.8$
BennettMountain
Energy(MWh)1,747.6 Ͳ Ͳ Ͳ1,576.842,195.371,644.472,356.82,126.7 Ͳ243.02,139.5194,030.2
Expense($x1000) 233.21$ Ͳ$ Ͳ$ Ͳ$76.93$2,114.43$4,143.41$4,491.51$116.23$ Ͳ$29.60$351.43$11,556.8$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 181,594.517,392.0109,634.749,440.0175,090.7212,327.0218,269.8187,736.5112,983.358,568.2180,435.4264,212.31,767,684.2
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 257,366.681,620.6192,078.2134,779.4265,843.8302,413.2312,622.3276,221.8188,579.9130,964.7249,701.4334,012.72,726,204.6
MarketExpense($x1000 9,288.59$570.60$3,018.42$1,452.18$4,791.30$6,602.81$8,170.50$7,859.90$4,501.79$2,422.19$7,573.99$12,890.86$69,143.1$
MarketExpenseͲNoWheeling($x1000 7,932.20$440.69$2,199.52$1,082.90$3,483.49$5,016.87$6,540.17$6,457.63$3,657.88$1,984.72$6,226.26$10,917.37$55,939.7$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 13,690.4$4,885.6$7,452.2$6,034.9$8,265.3$9,464.4$11,017.9$10,800.2$7,651.9$6,503.9$11,421.2$16,352.9$113,540.8$
Storage
BlackMesaBatteryEnergy(MWh (1,265.32)(1,106.75)(1,066.3)(1,048.2)(794.4)(821.4)(875.6)(877.3)(829.8)(936.2)(926.1)(1,096.3)(11,643.6)
80MWGridBatteryEnergy(MWh (2,509.48)(2,090.23)(1,975.3)(2,054.8)(1,637.0)(1,650.3)(1,750.9)(1,750.6)(1,662.4)(1,892.7)(1,809.0)(2,179.8)(22,962.4)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 71 of 76
11MWGridBatteryEnergy(MWh (344.18)(287.14)(258.8)(276.7)(200.5)(216.8)(241.0)(240.8)(219.4)(248.3)(234.6)(273.7)(3,041.6)
TotalStorage(MWh (4,119.0)(3,484.1)(3,300.4)(3,379.7)(2,631.9)(2,688.5)(2,867.4)(2,868.7)(2,711.6)(3,077.1)(2,969.7)(3,549.7)(37,647.7)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 3,921.393,335.624,392.239,582.014,695.24,002.15,899.26,201.426,987.251,688.07,080.61,704.3279,489.2
Revenue($x1000) 269.6$3,971.6$978.1$1,562.1$501.4$162.7$301.4$376.8$1,339.1$2,169.0$401.8$107.7$12,141.3$
RevenueͲNoWheeling($x1000) 240.4$3,274.4$795.9$1,266.4$391.7$132.8$257.3$330.5$1,137.5$1,782.9$348.9$95.0$10,053.7$
TotalEnergy 1,428,850.931,234,421.471,217,841.831,168,470.791,353,816.921,602,921.801,927,228.251,763,858.911,373,841.591,218,929.591,251,370.221,476,224.9717,017,777.27
TotalNPSE 50,834.2$26,518.2$32,078.2$30,004.3$34,631.6$50,258.7$64,543.1$66,633.7$44,637.2$39,133.7$51,589.9$65,295.1$558,245.3$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 72 of 76
2016
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 536,402.2589,739.9671,951.7781,505.7798,213.2592,262.4643,237.7479,247.2471,804.2421,128.3364,446.4443,054.16,792,992.8
BridgerCoal
Energy(MWh) 125,632.899,558.858,525.255,141.267,136.2122,127.1185,989.9248,509.5242,600.0243,002.4242,600.0250,686.71,941,509.95
Expense($x1000) 3,929.37$3,148.85$1,999.18$1,891.66$2,477.09$4,119.63$5,977.97$7,777.61$7,587.37$7,618.99$7,587.37$7,840.28$61,955.37$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ162.042,753.445,546.935,995.39,386.641,870.558,437.7234,273.9
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$7.67$1,987.41$2,110.92$1,685.16$438.24$1,947.05$2,687.98$10,870.2$
BridgerGas
Energy(MWh)Ͳ41,113.1 Ͳ4,054.51,922.17,852.622,659.728,027.312,645.834,314.6 Ͳ Ͳ152,589.7
Expense($x1000)Ͳ$1,599.97$ Ͳ$192.25$79.66$361.54$1,144.21$1,440.64$594.33$1,599.48$ Ͳ$ Ͳ$7,012.1$
LangleyGulch
Energy(MWh) 199,125.8208,920.871,812.6 Ͳ14,573.9207,562.0215,475.0215,590.2213,776.7221,178.3177,472.0157,748.51,903,235.7
Expense($x1000) 15,729.32$5,944.60$4,499.88$ Ͳ$416.63$6,392.75$7,594.23$8,180.25$7,456.09$7,830.95$13,229.22$16,887.39$94,161.3$
Danskin
Energy(MWh) 20,805.2 Ͳ63.8 Ͳ Ͳ56,378.9120,862.1125,990.7278.4 Ͳ98.93,419.6327,897.6
Expense($x1000) 2,731.79$ Ͳ$5.80$ Ͳ$ Ͳ$2,685.12$6,758.57$7,607.35$16.04$ Ͳ$11.71$553.91$20,370.3$
BennettMountain
Energy(MWh) 9,237.3 Ͳ Ͳ Ͳ Ͳ28,574.977,264.959,992.94,675.5 Ͳ1,093.715,354.3196,193.3
Expense($x1000) 1,193.63$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,380.46$4,321.29$3,595.82$253.26$ Ͳ$129.00$2,441.72$13,315.2$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 262,960.358,550.6110,789.120,886.099,876.9188,688.8228,842.6190,321.3103,302.054,203.7186,504.2298,804.21,803,729.6
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 338,732.5122,779.2193,232.7106,225.4190,630.0278,775.0323,195.0278,806.7178,898.7126,600.2255,770.2368,604.62,762,250.0
MarketExpense($x1000 12,740.49$1,895.37$2,999.70$582.04$2,570.12$5,547.56$8,258.82$7,719.40$3,993.09$2,099.46$7,606.31$14,335.24$70,347.6$
MarketExpenseͲNoWheeling($x1000 10,776.35$1,458.04$2,172.18$426.04$1,824.11$4,138.18$6,549.52$6,297.83$3,221.49$1,694.59$6,213.25$12,103.37$56,874.9$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 16,534.6$5,903.0$7,424.8$5,378.1$6,606.0$8,585.7$11,027.2$10,640.4$7,215.5$6,213.8$11,408.2$17,538.9$114,476.0$
Storage
BlackMesaBatteryEnergy(MWh (1,227.44)(900.47)(1,075.9)(1,047.1)(921.2)(845.0)(875.6)(868.6)(802.0)(917.4)(864.4)(1,131.7)(11,476.8)
80MWGridBatteryEnergy(MWh (2,412.62)(1,794.82)(2,122.2)(2,153.2)(1,819.3)(1,676.2)(1,750.9)(1,726.9)(1,650.3)(1,770.2)(1,704.3)(2,220.7)(22,801.6)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 73 of 76
11MWGridBatteryEnergy(MWh (324.41)(242.61)(271.0)(274.4)(246.2)(220.2)(241.1)(233.0)(215.1)(243.3)(223.2)(272.3)(3,006.6)
TotalStorage(MWh (3,964.5)(2,937.9)(3,469.1)(3,474.7)(2,986.6)(2,741.4)(2,867.6)(2,828.4)(2,667.4)(2,931.0)(2,791.8)(3,624.8)(37,285.0)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 39.650,738.520,492.263,657.629,358.08,483.35,633.94,930.919,090.156,015.87,140.4574.1266,154.3
Revenue($x1000) 3.0$2,267.2$793.3$2,562.8$1,028.8$339.0$279.3$287.6$869.7$2,549.3$395.1$36.5$11,411.6$
RevenueͲNoWheeling($x1000) 2.7$1,888.2$640.3$2,087.3$809.5$275.6$237.2$250.8$727.1$2,130.9$341.7$32.2$9,423.6$
TotalEnergy 1,428,850.931,234,421.481,217,841.851,168,470.771,353,816.911,602,921.831,927,228.261,763,858.881,373,841.601,218,929.601,251,370.201,476,225.0017,017,777.31
TotalNPSE 56,617.6$32,748.1$27,964.5$22,012.4$25,992.3$46,811.8$63,898.6$65,528.8$42,438.6$38,217.1$50,947.6$66,279.2$541,444.8$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 74 of 76
2017
January February March April May June July August September October November December Annual
HydroelectricGeneration(MWh) 778,184.81,022,708.01,079,181.11,061,274.01,204,380.11,166,144.6713,872.3680,956.5619,576.2466,433.4368,689.2467,311.99,628,712.1
BridgerCoal
Energy(MWh) 125,632.938,795.835,298.239,650.639,246.277,683.8140,123.2191,297.6185,950.2202,467.5225,735.4250,686.71,552,567.88
Expense($x1000) 3,929.37$1,401.15$1,331.11$1,446.11$1,674.38$2,840.42$4,657.79$6,130.71$5,956.57$6,452.01$7,101.85$7,840.28$50,761.75$
Valmy
Energy(MWh) 121.5 Ͳ Ͳ Ͳ Ͳ Ͳ22,908.327,299.12,264.640.537,229.843,401.2133,265.0
Expense($x1000) 5.75$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$1,077.72$1,271.64$106.32$1.92$1,740.19$2,015.27$6,218.8$
BridgerGas
Energy(MWh)Ͳ23,737.1 Ͳ8,142.21,831.64,394.922,704.844,428.923,632.019,221.5 Ͳ Ͳ148,092.9
Expense($x1000)Ͳ$789.42$ Ͳ$330.70$64.93$172.76$980.49$1,952.48$948.84$764.93$ Ͳ$ Ͳ$6,004.6$
LangleyGulch
Energy(MWh) 156,070.5 Ͳ Ͳ Ͳ Ͳ33,152.4215,567.2216,268.8211,569.2221,311.8185,432.3158,400.61,397,772.8
Expense($x1000) 11,042.79$ Ͳ$ Ͳ$ Ͳ$ Ͳ$906.54$6,677.16$7,203.48$6,488.26$6,885.50$11,806.10$14,739.78$65,749.6$
Danskin
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ101,468.427,143.6125.1 Ͳ164.83,323.3132,225.2
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$4,892.42$1,409.23$6.43$ Ͳ$16.89$465.85$6,790.8$
BennettMountain
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ Ͳ58,788.19,396.6974.1 Ͳ1,701.210,697.681,557.6
Expense($x1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$2,870.65$493.08$44.06$ Ͳ$174.47$1,477.45$5,059.7$
FixedCapacityChargeͲGasTransportation($x1000 1,207.53$1,111.14$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$1,207.53$1,173.82$1,207.53$1,173.82$1,207.53$14,259.18$
PurchasedPower(ExcludingPURPA)
MarketEnergy(MWh 104,972.74,423.4824.663.83,422.639,253.3260,399.7206,353.265,453.058,768.6194,209.3293,536.91,231,681.1
ElkhornWindEnergy(MWh) 33,655.923,622.425,682.326,290.726,451.824,654.728,961.025,307.919,486.021,189.826,456.030,502.9312,261.4
JackpotSolarEnergy(MWh 9,761.612,439.820,980.225,354.831,549.034,708.536,414.533,679.627,194.719,783.610,259.48,031.8270,157.5
NealHotSpringsEnergy(MWh 20,096.415,853.718,705.215,814.513,671.911,869.08,876.410,296.212,240.416,278.919,852.619,805.0183,360.2
RaftRiverGeothermalEnergy(MWh 8,791.67,114.18,829.87,638.06,890.96,180.36,877.67,094.96,759.67,674.58,509.78,512.990,873.8
BlackMesaSolarEnergy(MWh 3,466.75,198.58,246.010,241.412,189.512,673.813,223.112,106.79,915.97,469.84,188.32,947.8101,867.5
TotalEnergyExcl.PURPA(MWh 180,744.868,651.983,268.185,403.294,175.7129,339.5354,752.2294,838.6141,049.7131,165.2263,475.3363,337.32,190,201.5
MarketExpense($x1000 4,177.37$127.36$21.15$1.86$82.48$1,060.03$7,891.84$6,984.75$2,035.11$1,929.78$6,972.14$12,392.65$43,676.5$
MarketExpenseͲNoWheeling($x1000 3,393.29$94.32$14.99$1.38$56.92$766.83$5,946.83$5,443.43$1,546.22$1,490.82$5,521.53$10,200.12$34,476.7$
ElkhornWindExpense($x1000) 2,451.00$1,720.31$1,870.32$1,914.63$1,926.36$1,795.48$2,109.09$1,843.05$1,419.07$1,543.15$1,926.66$2,221.38$22,740.5$
JackpotSolarExpense($x1000 212.37$270.64$456.44$551.61$686.37$755.10$792.22$732.72$591.64$430.40$223.20$174.74$5,877.5$
NealHotSpringsExpense($x1000) 2,480.08$1,956.49$2,308.39$1,951.65$1,687.23$1,464.73$1,095.43$1,270.65$1,510.57$2,008.96$2,449.99$2,444.11$22,628.3$
RaftRiverGeothermalExpense($x1000 614.80$497.49$617.48$534.13$481.89$432.19$480.95$496.15$472.71$536.68$595.09$595.32$6,354.9$
BlackMesaSolarExpense($x1000 Ͳ$
TotalExpenseExcl.PURPA($x1000 9,151.5$4,539.3$5,267.6$4,953.4$4,838.8$5,214.3$10,424.5$9,786.0$5,540.2$6,010.0$10,716.5$15,635.7$92,077.8$
Storage
BlackMesaBatteryEnergy(MWh (1,155.67)(1,073.31)(1,391.9)(1,200.8)(1,054.6)(858.3)(887.1)(875.2)(811.0)(935.2)(863.7)(1,075.5)(12,182.3)
80MWGridBatteryEnergy(MWh (2,254.15)(2,224.37)(2,852.1)(2,383.6)(2,130.6)(1,708.3)(1,753.7)(1,736.8)(1,614.5)(1,835.9)(1,689.8)(2,135.1)(24,319.0)
IPCONORMALIZEDPOWERSUPPLYEXPENSESFORJANUARY1,2023ͲͲDECEMBER31,2023(MultipleGasPrices/37HydroYearConditions
AURORADevelopedResultsͲ2023GeneralRateCase
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 75 of 76
11MWGridBatteryEnergy(MWh (320.93)(288.66)(363.6)(323.1)(277.6)(227.4)(243.3)(235.2)(221.5)(258.1)(215.0)(274.5)(3,248.8)
TotalStorage(MWh (3,730.8)(3,586.3)(4,607.7)(3,907.5)(3,462.8)(2,794.0)(2,884.2)(2,847.3)(2,646.9)(3,029.1)(2,768.5)(3,485.2)(39,750.1)
BlackMesaBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
80MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
11MWGridBatteryExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
TotalStorageExpense($x1000 Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
DemandResponse
Energy(MWh)Ͳ Ͳ Ͳ Ͳ Ͳ1,653.338,800.008,106.67800.00 Ͳ Ͳ Ͳ19,360.0
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
OregonSola
Energy(MWh) 36.1533.5274.9373.1088.61102.2298.1688.9475.2068.7347.6024.77811.9
Cost($X1000)Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$ Ͳ$
PURPA
Energy(MWh) 202,761.41225,952.50246,142.34288,603.09313,597.50318,696.17295,393.89281,711.20234,049.41222,197.34177,903.16183,093.652,990,101.66
Expense($x1000) 15,288.7$17,307.7$13,620.6$15,939.5$16,234.2$22,444.1$24,159.5$23,255.9$17,326.7$15,857.5$15,856.3$17,158.0$214,448.8$
SurplusSales
Energy(MWh) 10,970.4141,871.0221,515.1310,767.9296,040.0125,451.24,364.214,830.343,577.040,947.16,240.1566.91,217,141.1
Revenue($x1000) 588.9$4,334.3$5,899.8$8,927.3$7,340.2$3,453.8$217.4$776.3$1,824.7$1,622.4$292.5$30.4$35,308.0$
RevenueͲNoWheeling($x1000) 507.0$3,274.6$4,245.3$6,606.1$5,128.9$2,516.7$184.8$665.6$1,499.2$1,316.5$245.9$26.1$26,216.7$
TotalEnergy 1,428,850.921,234,421.501,217,841.851,168,470.801,353,816.891,602,921.791,927,228.261,763,858.901,373,841.581,218,929.601,251,370.211,476,224.9817,017,777.28
TotalNPSE 40,036.8$20,814.4$15,527.0$14,916.2$16,679.7$29,298.2$56,730.4$51,933.7$35,766.5$35,557.0$48,293.6$60,509.5$435,154.3$
Wheeling3ͲYearAverage 7.47$
Exhibit No. 30
Case No. IPC-E-23-11
J. Brady, IPC
Page 76 of 76