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HomeMy WebLinkAbout20060515Comments.pdfDONALD L. HOWELL, II DEPUTY ATTORNEY GENERAL IDAHO PUBLIC UTILITIES COMMISSION PO BOX 83720 BOISE, IDAHO 83720-0074 (208) 334-0312 IDAHO BAR NO. 3366 I.! n . .... " . !' c Street Address for Express Mail: 472 W. WASHINGTON BOISE, IDAHO 83702-5983 Attorney for the Commission Staff BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION IN THE MATTER OF THE APPLICATION OF IDAHO POWER COMPANY FOR AUTHORITY) TO IMPLEMENT POWER COST ADJUST- MENT (PCA) RATES FOR ELECTRIC SERVICE FROM MAY 31, 2006 THROUGH MAY 31, 2007 CASE NO. IPC-06- 7 COMMENTS OF THE COMMISSION STAFF The Staff of the Idaho Public Utilities Commission, by and through its Attorney of record, Donald L. Howell, II, Deputy Attorney General, submits the following comments in response to Order No. 30022, the Notice of Application and Notice of Modified Procedure issued on April 18, 2006. BACKGROUND On April 12, 2006, Idaho Power Company filed its annual power cost adjustment (PCA) Application. Since 1993 the PCA mechanism has permitted Idaho Power to adjust its rates upward or downward to reflect the Company s annual "power supply costs." Because of its predominant reliance on hydroelectric generation, Idaho Power s actual cost of providing electricity (its power supply cost) varies from year-to-year depending on changes in Snake River STAFF COMMENTS MAY 12 2006 streamflow and the market price of power. The annual PCA surcharge or credit is combined with the Company s "base rates ! to produce a customer s overall energy rate. In this Application Idaho Power proposes a PCA rate adjustment that reduces annual revenue $46.8 million below what would be collected under base rates. The Company represents this as a $123.5 million decrease in revenues from existing PCA rates, or an average reduction in the PCA rates of 19.34%. Exhibit 8. Attachment A to these comments is a graphic that shows the history of Idaho Power s residential energy rates and identifies the PCA component. STAFF AUDIT AND ANALYSIS The PCA has three components: 1) a projection component; 2) a true-up component that corrects for the previous years projection error; and 3) a true-up ofthe previous year s true-up that is a final correction. Set out below are the Staff s comments on the three PCA components. A. The PCA Projection The National Weather Service Northwest River Forecast Center in Portland, Oregon forecasts the April through July Brownlee Reservoir inflow this year to be 8.38 million acre-feet (mat). This is one hundred and thirty-three percent (133%) of the average inflow. A regression equation developed from the results of a power supply model run is used to project "Net Power Supply Costs.See Order No. 24806. Using the forecasted 8.38 maf and the regression equation, Staff calculates Net Power Supply Costs for April 2006 through March 2007, to be 579 741. As authorized by Commission Order, Staff increased the calculated Net Power Supply Costs by expected PURP A qualifying facility purchases of $54 632 157 and reduced the amount by the expected net benefit of cloud seeding $895 462 ($1 004 538-900 000) to generate an expected PCA expense of$63 316 436. See Staff Attachment B.. This is $37. million below normal on a total company basis. Staff found that its calculation agreed with Idaho Power s calculation. The calculation of the projection rate component is shown on lines 1 through 6 of Attachment C, where the projection rate component is calculated to be 0.2507 ~/kWh. Staffs calculation of the projection rate component agrees with Idaho Power calculation. I Base rates are to be established by the Commission in Idaho Power s pending general rate case (Case No. IPC-O5-28). All parties in the pending general rate case have urged the Commission to approve a settlement Stipulation to increase base rates by an average of3.2%. STAFF COMMENTS MAY 12, 2006 B. The PCA True-up Exhibit No.3 to Idaho Power witness Schwendiman s testimony illustrates the calculation of the true-up deferral amount. Attachment D is Staffs calculation of true-up deferral amounts. Staff found no differences in methodology or amounts from those presented by the Company. As shown on Attachment D, line 62 in the "Totals" column, the true-up amount with interest is a minus $39 513 704. In rounded numbers it is composed as follows: ITEM Revenues from Last Year s Projection 90 % of Last Year s Above Normal Power Supply Costs Last Year s Above Normal PURPA Facilities Costs Miscellaneous Adjustments (Lines 45 , 46, 47, 48) Interest ($57 730) MILLIONS $(48. $ 21.0 $ (0. $(11.2) $ 0. --------- Total True-up Expense $(39. To verify revenues and costs associated with Idaho Power s true-up deferrals, Staff conducted an audit of all actual revenues and expenses that occurred during the PCA year. These revenues and costs included the cloud seeding program, fuel expenses for coal, fuel expenses for gas, and power purchases and sales. Staff also examined Settlement Agreement Credits for Order No. 29600, IDACORP Energy credits, and the Risk Management operating plans. The following items were significant: a. Cloud Seeding Program. Idaho Power spent $1 108 094 in total on the cloud seeding program costs during the prior PCA year. This expense item is subject to the 90/10 sharing. b. Fuel Expense - Coal.A large portion of Idaho Powers electricity comes from thermal power produced from its coal plants. The three coal plants in operation for Idaho Power are Bridger, Valmy, and Boardman. For the audit period of April 2004 to March 2005, the total coal expense for all plants in operation was $100 632 189. This is $5 482 789 higher than the base. This expense item differential is subject to the 90/10 sharing. c. Fuel Expense - Gas. Idaho Power owns two gas-fired combustion turbine generating plants. The Danskin and Bennett Mountain Power Plants are both located near Mountain Home and account for 100% of gas usage. The total variable gas and gas transportation expense STAFF COMMENTS MAY 12, 2006 amounted to $3 987 581 for the PCA period. This expense item is $730 981 over the base and the difference is subject to the 90/10 sharing. d. Power Purchases and Sales. During the PCA year ending March 31 , 2006, the Company sold surplus power totaling $211 248 247 , while total power purchases (excluding PURPA contracts) were $188 243 754. When applying the 90% sharing percentages to the net sales of $23 004,493 , customers will receive a benefit of $20 704 044 over the next 12 months. Staff reviewed the power purchases and sales in conjunction with the Company s Risk Management Operating Plans. Our analysis did not find any transaction that was not reasonable or did not follow the Risk Management Committee s recommendations. These transactions were made with an assortment of credit-worthy partners on a timely basis, and there were no transactions conducted with an Idaho Power affiliate. e. IdaCorp Energy Credit.In Order No. 29446, Case No. IPC-01-16 (PHASE II), the Commission accepted the terms of a stipulation between Commission Staff, Idaho Power, and various customer groups, including the Industrial Customers of Idaho Power, J.R. Simplot Company, Idaho Retailers Association, and Micron Technology. The stipulation credited Idaho customers approximately $10 million from May 2003 through December 2005. The credit was a separate line item in the PCA calculation with 100% of the benefit going to Idaho customers. The monthly amount of $166 667 is included in this year s PCA filing for 9 months, ending in December 2005. The total amount of the credit included in this year s PCA filing is $1 500 000. f. Settlement Agreement (Order No. 29600). In a Stipulation involving Idaho Power and the Commission Staff, both parties agreed on a single comprehensive settlement amount to resolve several outstanding issues. Case No. IPC-04-9. The parties proposed that the expense adjustment rate for growth (EARG) component in the PCA would continue at the existing value 16.84 mills per kWh, until the next general revenue requirement case in which the Company resets the base rates for PCA computation purposes. Idaho Power also agreed to provide a $19. million revenue credit to Idaho Power Customers in the Company s PCA. This revenue credit would be a separate $804 167 monthly line item for the months June 2004 through May 2006 in the PCA true-up calculation and includes interest from June 1 , 2004 at the PCA carrying charge rate of one percent (1 %). The Commission approved the Stipulation in Order No. 29600 issued in September 2004. Staff verified that all settlement components of the Stipulation were incorporated in this PCA Application. The Company has included the proper credit for customers in the amount of$9 650 000 through March 2006. STAFF COMMENTS MAY 12 2006 g. Bennett Mountain Credit.In Order No. 29790, Case No. IPC-05-, the Commission approved recovery of Bennett Mountain power plant costs and required that the related reduction in power supply expense be included in the Company s 2006-2007 PCA. The Company has included the proper monthly amount to reflect the reduction in power supply costs resulting from the Bennett Mountain power plant. The credit began in June 2005 and is reflected in the Company s filing for 10 months. This credit totals $39 858 and is not subject to the 90/10 sharing. C. The PCA True-up of the True-up The true-up amount set for recovery in last year s PCA case (IPC-05-15) was $49,472 607 and the rate calculated to recover that amount was 0.3973 ~/kWh. At the Company s request, the overall PCA rate was not increased last year. This resulted in an effective PCA true-up rate of 0.1751 ~/kWh which was expected to under recover the true-up amount by approximately $28.3 million. Including interest considerations, the approved rate under recovered the true-up amount by $24 513 298. As shown on Attachment C, line 13 , this amount is used to calculate the true-up of the true-up PCA rate component of 0.1931 ~/kWh. This is the same rate the Company calculated. PCA RATES The Staffs calculated PCA rate reduction of -3689 ~/kWh is the sum ofthe three components listed above (-0.2507 + -3113 + 0.1931 = -3689). This rate is shown on Attachment C, line 16. These are the same rates included in the Company s filing. Attachment E shows the average reduction from base rates by class and Attachment F shows the average reduction from existing rates by class. In both of these attachments the percentage decrease to larger customers is substantially more than the average decrease. When large power supply costs increase rates, larger customers receive larger than average PCA increases. This results because large customers have lower rates than smaller customers and an equal cents per kWh increase makes a larger percentage difference to them than it does to smaller customers whose base rates are higher. STAFF COMMENTS MAY 12 2006 CONSUMER ISSUES Idaho Power filed its PCA Application on April 12, 2006. Customers were notified of the Application by bill stuffers and a press release. The bill stuffers were mailed with customers monthly billings beginning on April 26th and ending May 24 Both the customer notice and press release comply with the notice requirements of IDAPA 31.21.02.102. Customers were given until May 1th to file comments regarding the proposed decrease in rates. As of the preparation of these Comments, the Commission had received no comments from customers. PCA RECOMMENDATIONS Staff s review identified no adjustments to the Company s calculations. Staff recommends that the Commission approve the PCA rates as filed by the Company. Staff recommends that these PCA rates become effective June 1 2006. Respectfully submitted this -/,k day of May 2006. Deputy Attorney General Technical Staff:Keith Hessing Donn English Kathy Stockton Marilyn Parker Beverly Barker i :umisc/commen tslipceO6. 7 dhkhklsdempbab STAFF COMMENTS MAY 12, 2006 Ba s e R a t e IH ! ! H i : ; , PC A I n c r e a s e PC A D e c r e a s e AV E R A G E R E S I D E N T I A L E N E R G Y R A T E S FO R I D A H O P O W E R C O M P A N Y 85 ~ - 4 . 93 \ 1 5 . 06 " 47 0 86 i 74 ~ 4 '" 'i' ~ 4 . 90 i 'i ' . ', I : : ' ' ' : 1 . 93 i 0( / ) ( ' ) ) - S- ~ ;: t : ~: : 1 \ (1 ) ~ -- ( ' ) z t r o? ~ .- ::: I "" 0 . . . . g0 ) - fj j t ; d 0'\ -- . J 19 9 4 19 9 5 Uil k h e s s i n l l P C E 0 6 0 7 1 P C A H i s t o r y C h a r t 51 5 1 2 0 0 6 K D H 19 9 6 19 9 7 19 9 8 Ce n t s p e r K i l o w a t t - ho u r 87 ~ 66 ~ 19 i 19 9 9 20 0 0 20 0 1 Ma y 20 0 1 Oc t . 20 0 2 20 0 3 20 0 4 14 ~ 54 i 20 0 5 20 0 6 Pr o p o s e d OC f ) n ~ S' ~ ::: I : "" " : : I i ( 1 ) ~ t: : n Z 2 " ~ S ~ g s ~ ~ (1 ) n :: ! I (f j t ; d -- J ID A H O P O W E R ' S 2 0 0 6 P C A P R O J E C T I O N IP C - O6 - 07 Fo u r t e e n t h A n n u a l P C A 14 0 00 0 00 0 PC A E x p e n s e = N P S C + O F E x p e n s e + C l o u d S e e d i n g E x p e n s e - C l o u d S e e d i n g B e n e f i t = 9 57 9 74 1 + 5 4 63 2 15 7 + 1 00 4 53 8 - 1 90 0 00 0 = 6 3 31 6 , 4 3 6 12 0 00 0 , 00 0 ~ 1 0 0 00 0 00 0 8 8 0 00 0 00 0 :: : - . i5 .g. 6 0 00 0 , 00 0 3: 4 0 00 0 00 0 a. . A I P C - 05 - 10 D a t a Re g r e s s i o n L i n e 20 0 6 F o r e c a s t .. . . .~ 2 0 , 00 0 00 0 (2 0 , 00 0 , 00 0 ) 00 0 00 0 00 0 , 00 0 6 00 0 , 00 0 8 , 00 0 00 0 1 0 , 00 0 , 00 0 Ap r i l t h r o u g h J u l y B r o w n l e e I n f l o w ( A c r e - Fe e t ) 00 0 , 00 0 2006-2007 PCA - Fourteenth Annual IPC-06- Staff Case (a)(b)(c)(d)(e)(f) (g) Line Descri tion Units Base Forecast Difference Rate Projection 2006-2007: PCA Expense ($) 100 916,459 63,316,436 (37 600,023) Normalized System Firm Sales (MWH)13,497 550 13,497 550 Energy Rate (i/kWh)74767 0.46910 27857 Sharing Percentage (%) 90% Energy Rate Difference (ilkWh)25071232 (0.2507) ill (MWh)($/MWh)WkWh) True-Up of 2005-2006:(39,513 704)695 163 112500722 (0.3113) True-Up of the True-Up:513 298 695,163 930916366 1931 PCA Rates: PCA Rate Adj. From Base (ilkWh)(0.3689) PCA Rate Currently in Effect (~/kWh)6039 Difference - Last Year to This Year (i/kWh)(0.9728) Expected PCA Revenues:Rate Energy Revenue /MWh (MWh)ill Forecast Revenue (2.507)695 163 (31 826 774) True Up Revenue (3.113)695 163 (39 513 695) True Up of True Up Revenue 931 695,163 513 090 Total (3.689)(46 827 378) Note: Negative rates and amounts indicate benefits to ratepayers. U:lkhessinllPCE0607lCompany CaselTRUE UPS & RATES 5/5/2006 Attachment C Case No. IPC-06- Staff Comments 05/12/06 DESCRIPTION 3 PCA Revenue 4 Normalized Idaho Jurisd, Sales 5 Forecast Rate 6 Revenue 8 Load Change Adjustment 9 Actual System Firm Load - Adjusted 10 Normalized Firm Load 11 Load Chan 12 Expense Adjustment ((1j)16.84) 14 Non-QF PCA 15 ACTUAL: 16 BPA Water Option Agreement 17 Cloud Seeding Program 18 Fuel Expense - Coal 19 Fuel Expense - Danskin 20 Fuel Expense - Bennett Mountain 21 Non-Firm Purchases 22 Surplus Sales 23 Ex ense Ad usiment (iPJ16,24 Sub-Total 26 BASE: 27 Fuel Expense - Coal 28 Fuel Expense - Danskin 29 Fuel Expense - Bennett Mountain 30 Non-Firm Purchases 31 Surplus Sales 32 Sur lus Sales Adder33 Sub-Total 35 Change From Base 36 Deferral (Shared and Allocated) 38 QF Deferral 39 Actual (includes Net Metering) 40 Base 42 Change From Base 43 Deferral (Allocated) 45 Intervenor Funding 46 Credit From IDACORP Energy 47 Settlement Agreement (ON 29600) 48 Bennett Mtn. Credit (ON 29790) 49 Total Deferral (-6+36+43+45+46+47+48: 51 Principal Balances 52 Beginning Balance 53 Amount Deferred 54 Ending Balance 56 Interest Balances 57 Accrual thru Prior Month 58 Interest (1j) 2% per Year 59 Prior Month's Interest Ad 60 Total Current Month Interest 61 Interest Accrued to Date 62 Balance (True-Up & Interest) 64 True-Up of the True- 65 True-Up Revenues66 True Up Rates67 Actual Idaho Sales68 Total 70 Beginning Baiance 71 Adjustments per ON 2979372 Fuel Expense Adjustment73 Intervenor Funding 74 Irri ation Lost Revenues ON 2966975 Sub-Total 76 Interest (1j) 2% per Year 77 Revenue Applied to Interest 78 Revenue Applied to Balance 79 True-Up of the True-Up Balance MWh mlKWh TRUE-UP CALCULATIONS FOR 2005 - 2006 FOR IDAHO POWER COMPANY PCA CASE NO. IPC-06- Staff Case Units 2005 APR 862 931 2.499 156,465 MWh MWh MWh 002 528 974 066 28,462 (479 300) 788 527 289 333 725 098 341 (5,434 762) 479 300 103 080 108,200 264 800 000 187 500) 786 500) 889 580 528 585 131 025 815 766 (684 741) (644 341) (166 667) (804,167) 756 946 756 946 756 946 757 003 2005 MAY 881 064 2.499 201 779 020 216 142 316 122 100 056 164 256 201 516,168 114 958 169 001 500 338 (18 370 968) 056 164 (758 138) 800 600 278 500 664 100 566 900) 176 300 934,438) 638 276) 605 364 160 399 (555 035) (522 288) (166 667) (804 167) 333 176) 756,946 333 176 576 230) 262 231 287 569 943) 2005 JUN 002 040 4.288 296 748 272 295 258 858 437 (226 279) 878 317 114 108 654 700 234 832 (14 206 066) 226 279 6,449 612 344 900 275 700 931,000 (4,558 900) 992,700 1,456 912 233 859 359 151 508 847 (149 696) (140 864) (166 667) (804 167) 986) 178 571 ) 576 230) 178 571 754 801) 287 (2,627) 627) 660 751 141) 2005 JUL 185 074 288 081 597 641 692 1,491 793 149 899 524 299) 168 717 191 888 1,480 609 198 870 (11 376 337) 524 299 139 448 714 800 279 600 335 100 385,400) 944,100 195 348 9,481 340 810 850 702 897 107,953 101,584 (166 667) (804 167) 986) 526 508 754 801 ) 526 508 (2,228 293) 660 591) 595) 935 234 228) 2005 AUG 303,702 288 590,274 538 801 1,424 633 114 168 (1,922 589) 963 765 274 450 682 146 513 360 602) 922 589 22,368 042 721,300 280,000 842,900 371 000) 8,473 200 894,842 767 542 6,490 347 6,422 258 089 071 (166 667) (804,167) (3,986) 266 520 228 293) 266 520 038 227 935) 714) 145 569) 504 028 722 2005 SEPT 164 116 288 991 729 190 787 179 173 614 (195 580) 093 240 (639 672) (875 540) 710,413 (12,538 689) 195 580 554 171 8,446 500 264 800 480 800 702,300) 3,489 800 064 371 135 916 038,841 081 395 (42 554) (40 043) (166 667) (804 167) 986) (870 676) 038 227 870 676 167,551 (9,504) 064 105 959 545 163 005 ~/kWh kWh 3707 0,3707 0,4024 0.4024 0.4024 0.4024 840 704 656 939 127 871 1 054,848 703 1 325 929 728 1 309 551 663 1 137 579,165 164 039 3 002 187 2 701 380 2 176 780 2,406 699 2 173,844 921 564 (250 506) 671 058 118 118 102 921 568,138 Note: Negative amounts indicate benefit to ratepayers U:\kh"';o'pcB0607\Comp~y C".ITRUE UPS & RATES 51812006 KDH 568 138 (45 675) 13,482 882 47,005 345 342 342 923 845 081,500 081 500 081,500 73,469 73,469 627,910 41 ,453 589 41,453 589 41,453 589 089 089 107 691 345 898 345 898 345 898 576 576 341 123 004,775 004,775 004,775 675 61,675 112,169 34,892 606 2005 OCT 925 105 4.288 966 850 051 573 055 943 370 591 374 911 285 872 783 7,477 280 (13 902 800) 591 315 636 727,700 272,300 700 982 500) 053 200 737 564) 471 543) 068 572 792,830 (724 258) (681,526) (166 667) (804 167) 986) 094 739) 167 551 094 739 927 189) (4,545) 613 603 943 928 131) 0.4024 975,839 218 723,273 892 606 892,606 154 154 665,118 227,488 Attachment D Case No. IPC-06- Staff Comments 05/12/06 Page 10f2 DESCRIPTION 3 PCA Revenue 4 Normalized Idaho Jurisd, Sales 5 Forecast Rate 6 Revenue 8 Load Change Adjustment 9 Actual System Firm Load - Adjusted 10 Normalized Firm Load 11 Load Chan 12 Expense Adjustment (IID16,84) 14 Non-QF PCA 15 ACTUAL: 16 BPA Water Option Agreement 17 Cloud Seeding Program 18 Fuel Expense - Coal 19 Fuel Expense - Danskin 20 Fuel Expense - Bennett Mountain 21 Non-Firm Purchases 22 Surplus Sales 23 Ex ense Ad ustment 16, 24 Sub-Total 26 BASE: 27 Fuel Expense - Coal 28 Fuel Expense - Danskin 29 Fuel Expense - Bennett Mountain 30 Non-Firm Purchases 31 Surplus Sales 32 Sur lus Sales Adder 33 Sub-Total 35 Change From Base 36 Deferral (Shared and Allocated) 38 QF Deferral 39 Actuai (includes Net Metering) 40 Base 42 Change From Base 43 Deferral (Allocated) 45 Intervenor Funding 46 Credit From iDACORP Energy 47 Settlement Agreement (ON 29600) 48 Bennett Mtn. Credit (ON 29790) 49 Total Deferral (-6+36+43+45+46+47+48) 51 Principal Balances 52 Beginning Balance 53 Amount Deferred 54 Ending Balance 56 Interest Balances 57 Accrual thru Prior Month 58 Interest lID 2% per Year 59 Prior Month's interest Ad 60 Total Current Month Interest 61 Interest Accrued to Date 62 Balance (True-Up & Interest) 64 True-Up of the True- 65 True-Up Revenues66 True Up Rates67 Actual Idaho Sales68 Total 70 Beginning Balance 71 Adjustments per ON 2979372 Fuel Expense Adjustment73 Intervenor Funding 74 Irri ation Lost Revenues ON 29669 75 Sub-Total 76 Interest lID 2% per Year 77 Revenue Applied to Interest 78 Revenue Applied to Balance 79 True-Up of the True-Up Balance TRUE-UP CALCULATIONS FOR 2005 - 2006 FOR IDAHO POWER COMPANY PCA CASE NO. IPC-06- Staff Case Units MWh mlKWh MWh MWh MWh 2005 NOV 885 609 288 797,491 137 344 079 817 527 (968 755) 798 142 377 898 759 196 111 728 267) 968 755 675 887 8,445 200 264 700 610 900 (1,414 700) 906 100 769 787 192 633 095 280 204 739 (109,459) (103 001) (166 667) (804 167) 986) 682 679) 927 189) 682 679 609 867) (943) 212) 212) 155 619 022) 2005 DEC 965 920 288 141 865 354 735 220,489 134 246 260 703) 414 022 902,700 314 726 523 632 754 148 (15 037 170) 260 703 611 354 727 000 272 800 884 100 357 300) 526 600 084 754 315 978 315 598 193 531 122 067 114 865 (166 666) (804 167) 986) 314,159 609 867) 314 159 704 291 155) (11 016) (11,036) 191 684 100 2006 JAN 043 993 288 4,476 642 244 146 207 127 019 (623 400) 140 182 9,468 720 885 790 190 694 (33,421 590) 623,400 175 719) 460 000 272 500 397 900 811 600) 318 800 (5,494 519) 653 308) 792 655 164 012 628 643 591 553 (804 167) 986) 346 550) 704 291 346 550 642 258) (20 191) 174 175 016 656 274) 2006 FEB 968 236 288 151 796 124 755 032 883 91,872 547 124) 137 597 178 162 089 480 292 649 (32,412 950) 547 124 (12 263 097) 371,000 257 500 700 681 800) 35,400 (12 298 497) (10,415 597) 707,472 073 610 633,862 596,464 (804,167) (3,986) (14,779 081) 642,258) 779 081 (20,421,340) (14 016) (9,404) 403) 23,419 (20,444 758) rf,/kWh kWh 0.4024 0.4024 0.4024 0.4024 890,496,444 1 005,408 010 1 078 920 738 1 016 643 093 568 690 1 889 864 1 988 372 1 739 243 227,488 227,488 379 379 513 310 714 178 Note: Negative amounts indicate benefit to ratepayers U,~h",i""",(!607\Comp"'y C",\TRUE UPS & RATES 51812006 KDH 714 178 714 178 857 857 837 007 877 170 29,877 170 877,170 49,795 795 938 577 27,938 593 938 593 938 593 564 564 692 679 245 915 2006 MAR 909 048 288 897 998 139 815 040,475 340 (1,672 886) 102 305 762 059 016 205 921 12,443 565 (37,458 046) 672 886 (17 588 065) 282 200 273,400 700 074 900) (441,600) (17 146,465) (14 521 342) 2,497 723 292 773 204 950 192 858 (804,167) 986) (19,034 634) (20,421 340) 034 634 (39,455 973) (23 419) (34 036) 276 (34 312) 730 (39,513 704) TOTALS 12,096 838 751 234 718,687 107 573 611 114 (10 291 160) 108 094 100 632 189 992 041 995 540 188 243 754 (211,248 247) 10,291 160 432,211 149,400 256 600 12,376 900 (63 094 800) 688 100 744,111 20,955 787 45,912,878 46,413,057 (500 179) (470 669) (1,500 000) 650,000) (39,858) (39,455 973) 39,455,973 (57,488) 242 (57,730) (39,513 704) 0.4024 954 795,701 12 529 844,990 776,360 26 310 731 245 915 245 915 743 743 732 617 513 298 416 271,416 (250 506) (45 675) 13,482 882 429,458 117 715 764 594 967 513 298 Attachment D Case No. IPC-06- Staff Comments 05/12/06 Page 2 of2 Li n e Ta r i f f D e s c r i p t i o n Un i f o r m T a r i f f R a t e s : Re s i d e n t i a l S e r v i c e Sm a l l G e n e r a l S e r v i c e La r g e G e n e r a l S e r v i c e Du s k t o D a w n L i g h t i n g La r g e P o w e r S e r v i c e Ag r i c u l t u r a l I r r i g a t i o n S e r v i c e Un m e t e r e d G e n e r a l S e r v i c e St r e e t L i g h t i n g Tr a f f i c C o n t r o l L i g h t i n g 10 To t a l U n i f o r m T a r i f f s Sp e c i a l C o n t r a c t s : 11 Mi c r o n 12 J R S i m p l o t 13 D O E 14 To t a l S p e c i a l C o n t r a c t s 15 To t a l I d a h o Re t a i l S a l e s IP C - 06 - Id a h o P o w e r C o m p a n y Su m m a r y o f R e v e n u e I m p a c t St a t e o f I d a h o No r m a l i z e d 1 2 - Mo n t h s E n d i n g D e c e m b e r 3 1 , 20 0 5 6/ 1 / 0 6 B a s e t o 6 / 1 / 0 6 P C A r- -P; 1 ~ ~ u ~e : : S O) . S 0 0 \ 0 ZU ~ O) ~ ~ :j j e n (I j " " ' " ~u ( j ) : g (1 ) (2 ) Ra t e 20 0 5 A v g . Sc h . N u m b e r No . Cu s t o m e r s (3 ) 20 0 5 S a l e s No r m a l i z e d (k W h ) (4 ) 06 / 0 1 / 0 6 Ba s e Re v e n u e (5 ) 06 / 0 1 / 0 6 PC A Ad j u s t m e n t (6 ) (7 ) (8 ) To t o l Re v e n u e Av e r a g e Pe r c e n t (t / k W h Ch a n G e 1/ 4 / 5 35 9 , 80 2 50 3 , 86 5 , 23 0 26 6 , 7 2 8 , 02 9 (1 6 , 61 4 , 7 5 9 ) 2 5 0 , 11 3 , 27 0 55 3 23 % 30 , 89 9 21 8 , 60 5 , 82 5 16 , 03 9 , 93 7 (8 0 6 , 4 3 7 ) 15 , 23 3 , 50 0 96 8 03 % 20 , 99 8 22 7 , 11 8 , 62 2 13 0 , 35 4 , 52 2 (1 1 , 9 0 4 , 84 1 ) 1 1 8 , 4 4 9 , 68 1 67 0 13 % 93 3 , 90 6 93 8 , 95 6 (2 1 , 8 9 0 ) 91 7 , 06 6 15 . 4 5 5 - 2 . 33 % 11 5 05 6 , 65 8 , 50 4 63 , 55 1 , 4 5 7 (7 , 58 7 , 01 3 ) 5 5 , 96 4 , 4 4 4 2. 7 2 1 11 . 9 4 % 24 1 2 5 15 , 08 5 57 4 , 10 0 , 11 7 71 , 7 8 7 , 67 2 (5 , 80 6 , 85 5 ) 65 , 98 0 , 81 7 19 2 09 % 31 0 16 , 20 2 , 70 7 87 3 , 38 7 (5 9 , 7 7 2 ) 81 3 , 61 5 02 1 84 % 12 9 18 , 7 0 4 , 63 6 95 4 , 04 3 (6 9 , 00 1 ) 88 5 , 04 2 10 . 07 8 53 % 84 2 , 17 3 27 0 , 08 7 (2 8 , 93 0 ) 24 1 , 1 5 7 07 5 10 . 71 % 42 9 , 4 1 0 11 , 62 9 , 03 1 , 72 0 55 2 , 4 9 8 , 09 0 (4 2 , 89 9 , 4 9 8 ) 5 0 9 , 59 8 , 59 2 38 2 76 % 67 3 , 7 6 0 , 25 0 17 , 91 7 , 7 4 7 (2 , 4 8 5 , 50 2 ) 15 , 4 3 2 , 24 5 29 0 - 1 3 . 87 % 18 7 , 63 2 , 19 9 64 5 , 19 0 (6 9 2 , 17 5 ) 95 3 , 01 5 10 7 - 1 4 . 90 % 20 4 , 7 3 8 , 94 3 16 2 , 16 2 (7 5 5 . 2 8 2 ) 4, 4 0 6 , 88 0 15 2 - 1 4 . 63 % 1 , 06 6 , 13 1 , 39 2 27 , 72 5 , 09 9 (3 , 93 2 , 95 9 ) 23 , 79 2 , 14 0 23 2 14 . 19 % 42 9 , 4 1 3 12 , 69 5 , 16 3 , 11 2 58 0 , 22 3 , 18 9 (4 6 , 83 2 , 4 5 7 ) 5 3 3 , 39 0 , 73 2 20 2 07 % Ba s e R e v e n u e e x c l u d e s a m o u n t a s s o c i a t e d w i t h t h e o n e - ye a r t a x a d j u s t m e n t a u t h o r i z e d b y O r d e r N o . 2 9 7 8 9 . T h e ad j u s t m e n t e x p i r e s M a y 3 1 , 2 0 0 6 . Li n e Ta r i f f D e s c r i g t i o n Un i f o r m T a r i f f R a t e s : Re s i d e n t i a l S e r v i c e Sm a l l G e n e r a l S e r v i c e La r g e G e n e r a l S e r v i c e Du s k t o D a w n L i g h t i n g La r g e P o w e r S e r v i c e Ag r i c u l t u r a l I r r i g a t i o n S e r v i c e Un m e t e r e d G e n e r a l S e r v i c e St r e e t L i g h t i n g Tr a f f i c C o n t r o l L i g h t i n g 10 To t a l U n i f o r m T a r i f f s ~ ~ ~ ~ 1 3 .. . . , P ' tV H i (1 ) 0 on Z e - O'\ o~ ~ -t : S "d . - + (1 ) n 'T j t: S I fj j ~ 0'\ --. 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Cu s t o m e r s (k W h ) Re v e n u e us t m e n t Re v e n u e (t / k W h Ch a n 1/ 4 / 5 35 9 , 80 2 50 3 , 86 5 , 23 0 28 5 , 60 6 , 4 6 1 (4 3 , 84 0 , 62 4 ) 2 4 1 , 7 6 5 , 83 7 36 8 15 . 35 % 34 , 31 0 29 6 , 65 0 , 38 8 22 , 52 2 , 4 8 2 (2 , 88 5 , 81 5 ) 19 , 63 6 , 66 7 61 9 12 . 81 % 17 , 58 7 14 9 , 07 4 , 05 8 14 0 , 09 9 , 97 5 (3 0 , 63 4 , 19 2 ) 1 0 9 , 4 6 5 , 7 8 3 3. 4 7 6 21 . 87 % 93 3 , 90 6 97 4 , 7 9 1 (5 7 , 72 5 ) 91 7 , 06 6 15 . 4 5 5 92 % 11 5 05 6 , 65 8 , 50 4 73 , 98 3 , 62 7 (2 0 , 00 7 , 17 4 ) 53 , 97 6 , 4 5 3 62 4 27 . 04 % 24 / 2 5 15 , 08 5 1, 5 7 4 , 10 0 , 11 7 79 , 06 7 , 33 8 (1 5 , 33 3 , 30 9 ) 63 , 7 3 4 , 02 9 04 9 19 . 39 % 31 0 16 , 20 2 , 70 7 97 1 , 2 3 5 (1 5 7 , 62 0 ) 81 3 , 61 5 02 1 16 . 23 % 12 9 18 , 7 0 4 , 63 6 00 5 , 92 6 (1 8 1 , 9 5 9 ) 82 3 , 96 7 9. 7 5 1 07 % 84 2 , 17 3 30 8 99 2 (7 6 , 28 9 ) 23 2 , 70 3 96 7 24 . 69 % 42 9 , 4 1 0 11 , 6 2 9 , 03 1 , 7 1 9 60 5 , 54 0 , 82 7 (1 1 3 , 17 4 , 7 0 7 ) 4 9 2 , 36 6 , 12 0 23 4 18 . 69 % 67 3 , 7 6 0 , 25 0 21 , 4 2 5 , 92 6 (6 , 55 4 , 34 0 ) 14 , 87 1 , 58 6 20 7 30 . 59 % 18 7 , 63 2 , 19 9 63 3 , 04 1 (1 , 82 5 , 28 6 ) 80 7 , 7 5 5 02 9 32 . 4 0 % 20 4 , 7 3 8 , 94 3 23 7 , 19 5 (1 , 9 9 1 , 7 0 0 ) 24 5 , 4 9 5 07 4 31 . 93 % 06 6 , 13 1 , 39 2 33 , 29 6 , 16 2 (1 0 , 37 1 , 3 2 6 ) 2 2 , 92 4 , 83 6 15 0 31 . 1 5 % 42 9 , 4 1 3 12 , 69 5 , 16 3 , 11 1 63 8 , 83 6 , 98 9 (1 2 3 , 54 6 , 03 3 ) 5 1 5 , 29 0 , 95 6 05 9 19 . 34 % Ba s e R e v e n u e e x c l u d e s a m o u n t a s s o c i a t e d w i t h t h e o n e - ye a r t a x a d j u s t m e n t a u t h o r i z e d b y O r d e r N o . 2 9 7 8 9 . Th e a d j u s t m e n t e x p i r e s M a y 3 1 , 2 0 0 6 . CERTIFICATE OF SERVICE HEREBY CERTIFY THAT I HAVE THIS 12TH DAY OF MAY 2006 SERVED THE FOREGOING COMMENTS OF THE COMMISSION STAFF, IN CASE NO. IPC-06-, BY MAILING A COpy THEREOF, POSTAGE PREPAID, TO THE FOLLOWING: BARTON L KLINE MONICA MOEN IDAHO POWER COMPANY PO BOX 70 BOISE ID 83707-0070 GREGORY W SAID DIRECTOR, REVENUE REQUIREMENT IDAHO POWER COMPANY PO BOX 70 BOISE ID 83707-0070 SECRETAR , CERTIFICATE OF SERVICE