20250625APPLICATION.pdf

RECEIVED
June 25, 2025
IDAHO PUBLIC
UTILITIES COMMISSION
_ ROCKY MOUNTAIN 1407 W.North Temple,Suite 330
POWER. Salt Lake City,UT 84116
A DIVISION OF PACIFICORP
June 25, 2025
VIA ELECTRONIC DELIVERY
Idaho Public Utilities Commission
11331 W. Chinden Blvd.
Building 8 Suite 201A
Boise, ID 83714
Attn: Commission Secretary
RE: CASE NO. PAC-E-25-13
IN THE MATTER OF THE APPLICATION OF ROCKY MOUNTAIN POWER
FOR AUTHORITY TO DECREASE ELECTRIC SERVICE SCHEDULE 191 -
CUSTOMER EFFICIENCY SERVICES RATE
Please find enclosed for filing in the above captioned matter Rocky Mountain Power's Application
requesting authority to decrease Electric Service Schedule 191 — Customer Efficiency Services
Rate.
Informal questions related to this matter may be directed to me at(801) 220-4214.
Sincerely,
Michael S. Snow
Manager, Regulatory Affairs
Enclosures

Joseph M. Dallas, (ISB# 10330)
Senior Attorney
PacifiCorp
825 NE Multnomah, Suite 2000
Portland, Oregon 97232
Telephone: [phone]
Email: joseph.dallaskpacificorp.com
Attorney for Rocky Mountain Power
BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION
IN THE MATTER OF THE APPLICATION )
OF ROCKY MOUNTAIN POWER FOR ) CASE NO. PAC-E-25-13
AUTHORITY TO DECREASE ELECTRIC )
SERVICE SCHEDULE 191 - CUSTOMER ) APPLICATION
EFFICIENCY SERVICES RATE )
COMES NOW, Rocky Mountain Power, a division of PacifiCorp (the "Company"),
and in accordance with RP 052, hereby petitions the Idaho Public Utilities Commission (the
"Commission") for authority to decrease Electric Service Schedule No. 191 - Customer
Efficiency Services Rate Adjustment, ("Schedule 191") from 2.50 percent to 1.92 percent to
better align revenue collections with demand-side management ("DSM") expenditures while
gradually balancing the deferred account associated with acquiring and administering DSM
programs in Idaho over the next three years. The Company requests this application be
processed under modified procedures pursuant to RP 201-204.
In support of this Application, Rocky Mountain Power states:
1. Rocky Mountain Power is authorized to do business in the state of Idaho as a
public utility providing retail electric service to approximately 91,000 customers. Rocky
Mountain Power is a public utility subject to the jurisdiction of the Commission pursuant to
Idaho Code § 61-129.
APPLICATION OF Page 1
ROCKY MOUNTAIN POWER

2. This Application is filed pursuant to Idaho Code §§ 61-301, 61-307, 61-622,
and 61-623. In particular, Idaho Code § 61-623 empowers the Commission to determine the
propriety of proposed rate schedules, §§ 61-307 and 61-622 require Commission approval
prior to any change in rates, and § 61-301 requires Idaho retail electric rates to be just and
reasonable.
BACKGROUND
3. The Company has offered a variety of demand side management programs to
its customers since the 1970s. DSM programs offered by Rocky Mountain Power are designed
with the goal to be cost-effective. On March 2, 2006, the Commission approved cost recovery
of DSM programs through Schedule 191 applied to customers' bills effective May 1, 2006.
Schedule 191 was approved so Idaho customers can participate in cost-effective DSM
programs while providing the Company the ability to recover the costs of providing these
programs.
4. To monitor Schedule 191 collections and DSM program expenses the
Commission implemented an annual reporting process to review balances and cost-
effectiveness. As of May 31, 2025, the balance for Schedule 191 is over-collected by
$4,658,434. Absent a decrease to current rates, the Company expects future DSM revenue
collections to increasingly exceed expenditures.
ADJUSTMENT TO SCHEDULE 191
5. The Company is committed to delivering cost effective energy efficiency
measures at the lowest cost possible. To continue to deliver cost effective programs and to
better align Schedule 191 revenues with projected expenditures, the Company proposes to
decrease the collection rate from 2.50 percent to 1.92 percent, effective November 1, 2025.
APPLICATION OF Page 2
ROCKY MOUNTAIN POWER

6. On behalf of its customers,the Company invested$4.5 million in DSM resource
acquisitions during the 2024 calendar year,which yielded 16,000 megawatt hours at generator
in first-year savings. The net benefits over the life of the individual energy efficiency measures
from 2024 is estimated at $1.6 million. The 2024 DSM portfolio was cost effective overall
from a Utility Cost Test perspective with a result of 1.49.Additional details on the Company's
2024 DSM portfolio can be found in the 2024 Annual DSM Report submitted May 1, 2025 in
Case No. PAC-E-05-10.
7. Attachment A to the Company's Application summarizes the projected monthly
DSM expenditures and Schedule 191 revenues collected through December 31, 2028, using
the current authorized collection rate of 2.50 percent. Based on these projections for
expenditures and revenues,by the end of 2028 the DSM balancing account will be$7.4 million
over-collected.
8. Attachment B to the Company's Application summarizes the same data as
Attachment A, but uses the proposed Schedule 191 rate of 1.92 percent effective
November 1, 2025. Assuming a 1.92 percent collection rate for Schedule 191 effective
November 1, 2025, and an assumed level of DSM expenditures each year, the balance in the
deferred account is projected to be over-collected by $10,352 as of December 31, 2028.
9. The proposed gradual alignment of the DSM balancing account over a 3-year
period through 2028 mirrors the Company's previous Schedule 191 rate adjustments approved
in Case Nos. PAC-E-18-12 and PAC-E-22-10, which gradually balanced the DSM account
over the 2018-2021 and 2022-2024 periods,respectively. Attachment C shows the rate impact
by customer class for the proposed rate from 2.50 percent to 1.92 percent in this Application.
APPLICATION OF Page 3
ROCKY MOUNTAIN POWER

10. At 1.92 percent annual revenue collection will be approximately$7.24 million.
This rate adjustment will result in an approximate $8.40 per year decrease for the average
residential customer using 836 kWh per month. Attachment D contains a clean and legislative
copy of the Company's revised tariff sheets for Schedule 191.
COMMUNICATIONS
11. Communications regarding this Application should be addressed to:
Mark Alder
Michael Snow
1407 W.North Temple, Suite 330
Salt Lake City, Utah 84116
Telephone: [phone]
[phone]
Email: mark.alder&pacificorp.com
michael.snowgpacificorp.com
Joseph Dallas
825 NE Multnomah, Suite 2000
Portland, Oregon 97232
Telephone: [phone]
Email:joseph.dallaskpacificorp.com
In addition, the Company respectfully requests that all data requests regarding this matter be
addressed to one or more of the following:
By e-mail (preferred): datarequestkpacificorp.com
By regular mail: Data Request Response Center
PacifiCorp
825 NE Multnomah, Suite 2000
Portland, OR 97232
12. Pursuant to Idaho Code § 61-307 and the Commission's Rule of Procedure 123,
regarding the Company's statutory requirement to provide a customer notice prior to any rate
change, Attachments E and F to the Application include copies of the press release and
customer bill insert, respectively. The Company anticipates these bill inserts will be included
in the July 2025 billing cycle.
APPLICATION OF Page 4
ROCKY MOUNTAIN POWER

MODIFIED PROCEDURE
13. The Company believes that consideration of the proposals contained in this
Application do not require an evidentiary proceeding, and accordingly requests that this
Application be processed under modified procedure pursuant to RP 201-204,which allows for
consideration of these issues by written submissions rather than by an evidentiary hearing. If,
however,the Commission determines that an evidentiary proceeding is required the Company
stands ready to provide supporting testimony.
CONCLUSION
WHEREFORE, Rocky Mountain Power respectfully requests that the Commission
issue an Order: (1) authorizing that this proceeding be processed under modified procedure,
and (2) approving this Application to decrease the Electric Service Schedule 191 - Customer
Efficiency Services Rate, to 1.92 percent as described herein with a November 1, 2025,
effective date.
DATED this 25th day of June 2025.
Respectfully submitted,
By
Joseph M. Dallas
Senior Attorney
PacifiCorp
825 NE Multnomah, Suite 2000
Portland, Oregon 97232
Telephone: [phone]
Email:joseph.dallas&pacificorp.com
APPLICATION OF Page 5
ROCKY MOUNTAIN POWER

ATTACHMENT A

Attachment A
Page 1 of 1
Attachment A
Idaho Demand-Side Management Balance Account Analysis
Using current rate of 2.50%
Monthly Program Costs- Accrued Costs Cash Basis Accrual Basis Customer
Fixed Assets Balance Rate Recovery Carrying Charge Accumulated Balance Accumulated Balance Deposit Rate
2011 totals $ 2,669,984 $ 380,980 $ (5,356,975) $ 24,350 $ 1,183,202 $ 1,564,182
2012 totals $ 3,371,757 $ (61,566) $ (5,245,005) $ (121) $ (690,167) $ (370,753)
2013 totals $ 3,815,666 $ (36,097) $ (4,024,339) $ (10,042) $ (908,882) $ (625,566)
2014 totals $ 3,160,823 $ 219,529 $ (2,406,315) $ (498) $ (154,871) $ 347,975
2015 totals $ 4,395,370 $ (195,090) $ (3,835,750) $ 2,182 $ 406,931 $ 714,687
2016 totals $ 4,509,400 $ (35,969) $ (4,995,153) $ 1,977 $ (76,845) $ 194,942
2017 totals $ 3,969,555 $ (72,689) $ (5,210,303) $ (8,756) $ (1,326,350) $ (1,127,251)
2018 totals $ 4,629,012 $ 118,050 $ (5,142,442) $ (18,433) $ (1,858,213) $ (1,541,064)
2019 totals $ 4,766,994 $ 221,867 $ (4,481,050) $ (33,527)
2020 totals $ 5,750,656 $ (54,655) $ (4,594,645) $ (27,712)
2021 totals $ 4,671,716 $ (140,457) $ (4,713,416) $ (5,429)
2022 totals $ 4,214,323 $ (67,871) $ (5,165,493) $ (9,983)
2023 totals $ 4,776,667 $ 2,630,350 $ (5,604,868) $ (41,060)
2024 totals $ 4,674,042 $ (2,588,775) $ (6,179,918) $ (152,424)
January $ 353,477.82 $ (14,904.50) $ (472,732.97) $ (16,971.00) $ (4,149,565.04) $ (3,846,861.18) 5.00%
February $ 257,491.68 $ (23,562.19) $ (467,953.93) $ (17,728.00) $ (4,377,755.29) $ (4,098,613.62) 5.00%
March $ 437,004.79 $ 8,246.58 $ (427,441.76) $ (18,221.00) $ (4,386,413.26) $ (4,099,025.01) 5.00%
April $ 379,944.60 $ 73,436.34 $ (385,994.19) $ (18,289.00) $ (4,410,751.85) $ (4,049,927.26) 5.00%
May $ 256,223.23 $ 98,403.81 $ (485,050.42) $ (18,855.00) $ (4,658,434.04) $ (4,199,205.64) 5.00%
June $ 535,635.47 $ (944,821.99) $ (20,263.00) $ (5,087,883.56) $ (4,628,655.16) 5.00%
July $ 860,001.08 $ (1,526,177.27)$ (22,587.00) $ (5,776,646.75) $ (5,317,418.35) 5.00%
August $ 665,440.38 $ (1,221,348.18)$ (25,228.00) $ (6,357,782.54) $ (5,898,554.14) 5.00%
September $ 995,599.35 $ (1,008,929.16)$ (26,519.00) $ (6,397,631.35) $ (5,938,402.95) 5.00%
October $ 841,938.68 $ (678,186.42) $ (26,316.00) $ (6,260,195.09) $ (5,800,966.69) 5.00%
November $ 850,589.35 $ (616,810.27) $ (25,597.00) $ (6,052,013.01) $ (5,592,784.61) 5.00%
December $ 877,558.84 $ (675,252.81) $ (24,795.00) $ (5,874,501.98) $ (5,415,273.58) 5.00%
2025 totals $ 7,310,905.28 $ 141,620.04 $ (8,910,699.37)$ (261,369.00)
January $ 740,526.82 $ (622,816.76) $ (24,232.00) $ (5,781,023.92) $ (5,321,795.52) 5.00%
February $ 778,777.90 $ (575,346.04) $ (23,664.00) $ (5,601,256.06) $ (5,142,027.66) 5.00%
March $ 677,061.08 $ (525,607.57) $ (23,023.00) $ (5,472,825.54) $ (5,013,597.14) 5.00%
April $ 557,132.21 $ (500,924.49) $ (22,686.00) $ (5,439,303.82) $ (4,980,075.42) 5.00%
May $ 674,960.18 $ (526,054.05) $ (22,354.00) $ (5,312,751.69) $ (4,853,523.29) 5.00%
June $ 494,338.94 $ (944,821.99) $ (23,075.00) $ (5,786,309.74) $ (5,327,081.34) 5.00%
July $ 793,696.54 $ (1,526,177.27)$ (25,636.00) $ (6,544,426.47) $ (6,085,198.07) 5.00%
August $ 614,136.12 $ (1,221,348.18)$ (28,533.00) $ (7,180,171.53) $ (6,720,943.13) 5.00%
September $ 918,840.43 $ (1,008,929.16)$ (30,105.00) $ (7,300,365.26) $ (6,841,136.86) 5.00%
October $ 777,026.72 $ (678,186.42) $ (30,212.00) $ (7,231,736.96) $ (6,772,508.56) 5.00%
November $ 785,010.43 $ (616,810.27) $ (29,782.00) $ (7,093,318.80) $ (6,634,090.40) 5.00%
December $ 809,900.62 $ (675,252.81) $ (29,275.00) $ (6,987,945.98) $ (6,528,717.58) 5.00%
2026 totals $ 8,621,408.00 $ $ (9,422,275.00)$ (312,577.00)
January $ 799,286.27 $ (622,816.76) $ (28,749.00) $ (6,840,225.46) $ (6,380,997.06) 5.00%
February $ 840,572.50 $ (575,346.04) $ (27,948.00) $ (6,602,947.00) $ (6,143,718.60) 5.00%
March $ 730,784.64 $ (525,607.57) $ (27,085.00) $ (6,424,854.92) $ (5,965,626.52) 5.00%
April $ 601,339.64 $ (500,924.49) $ (26,561.00) $ (6,351,000.78) $ (5,891,772.38) 5.00%
May $ 728,517.04 $ (526,054.05) $ (26,041.00) $ (6,174,578.79) $ (5,715,350.39) 5.00%
June $ 533,563.83 $ (944,821.99) $ (26,584.00) $ (6,612,420.94) $ (6,153,192.54) 5.00%
July $ 856,674.92 $ (1,526,177.27)$ (28,947.00) $ (7,310,870.30) $ (6,851,641.90) 5.00%
August $ 662,866.70 $ (1,221,348.18)$ (31,625.00) $ (7,900,976.78) $ (7,441,748.38) 5.00%
September $ 991,748.74 $ (1,008,929.16)$ (32,957.00) $ (7,951,114.19) $ (7,491,885.79) 5.00%
October $ 838,682.37 $ (678,186.42) $ (32,795.00) $ (7,823,413.24) $ (7,364,184.84) 5.00%
November $ 847,299.58 $ (616,810.27) $ (32,117.00) $ (7,625,040.93) $ (7,165,812.53) 5.00%
December $ 874,164.76 $ (675,252.81) $ (31,357.00) $ (7,457,485.98) $ (6,998,257.58) 5.00%
2027 totals $ 9,305,501.00 $ $ (9,422,275.00)$ (352,766.00)
January $ 843,582.47 $ (622,816.76) $ (30,613.00) $ (7,267,333.26) $ (6,808,104.86) 5.00%
February $ 887,156.77 $ (575,346.04) $ (29,631.00) $ (6,985,153.53) $ (6,525,925.13) 5.00%
March $ 771,284.50 $ (525,607.57) $ (28,593.00) $ (6,768,069.59) $ (6,308,841.19) 5.00%
April $ 634,665.70 $ (500,924.49) $ (27,922.00) $ (6,662,250.39) $ (6,203,021.99) 5.00%
May $ 768,891.23 $ (526,054.05) $ (27,253.00) $ (6,446,666.21) $ (5,987,437.81) 5.00%
June $ 563,133.77 $ (944,821.99) $ (27,656.00) $ (6,856,010.42) $ (6,396,782.02) 5.00%
July $ 904,151.58 $ (1,526,177.27)$ (29,863.00) $ (7,507,899.12) $ (7,048,670.72) 5.00%
August $ 699,602.57 $ (1,221,348.18)$ (32,370.00) $ (8,062,014.73) $ (7,602,786.33) 5.00%
September $ 1,046,711.15 $ (1,008,929.16)$ (33,513.00) $ (8,057,745.74) $ (7,598,517.34) 5.00%
October $ 885,161.89 $ (678,186.42) $ (33,143.00) $ (7,883,913.27) $ (7,424,684.87) 5.00%
November $ 894,256.66 $ (616,810.27) $ (32,272.00) $ (7,638,738.87) $ (7,179,510.47) 5.00%
December $ 922,610.70 $ (675,252.81) $ (31,313.00) $ (7,422,693.98) $ (6,963,465.58) 5.00%
2028 totals $ 9,821,209.00 $ $ (9,422,275.00)$ (364,142.00)
Pgm FA Totals$ 116,795,593.74 $ 459,228.40 $ (122,792,937.72)$ (1,425,350.00) $ (6,963,465.58)
DSM balancing account as of May 31,2025(cash basis) $ (4,658,434.04)
Forecast DSM expenses through December 2028 $ 33,374,881.16
Forecast carrying charges through December 2028 $ (1,200,790.00)
Total expenses through December 2028 $ 32,174,091.16
Total DSM surcharge collections through December 2028 $ (34,938,351.10)
Forecast DSM balancing account as of December 31,2028(cash basis) $ (7,422,693.98)
Notes:
Figures provided through May 2025 are actuals.

ATTACHMENT B

Attachment B
Page 1 of 1
Attachment B
Idaho Demand-Side Management Balance Account Analysis
Using proposed rate of 1.92%,effective November 1,2025
Monthly Program Costs- Accrued Costs Cash Basis Accrual Basis Customer
Fixed Assets Balance Rate Recovery Carrying Charge Accumulated Balance Accumulated Balance Deposit Rate
2011 totals $ 2,669,984 $ 380,980 $ (5,356,975) $ 24,350 $ 1,183,202 $ 1,564,182
2012 totals $ 3,371,757 $ (61,566) $ (5,245,005) $ (121) $ (690,167) $ (370,753)
2013 totals $ 3,815,666 $ (36,097) $ (4,024,339) $ (10,042) $ (908,882) $ (625,566)
2014 totals $ 3,160,823 $ 219,529 $ (2,406,315) $ (498) $ (154,871) $ 347,975
2015 totals $ 4,395,370 $ (195,090) $ (3,835,750) $ 2,182 $ 406,931 $ 714,687
2016 totals $ 4,509,400 $ (35,969) $ (4,995,153) $ 1,977 $ (76,845) $ 194,942
2017 totals $ 3,969,555 $ (72,689) $ (5,210,303) $ (8,756) $ (1,326,350) $ (1,127,251)
2018 totals $ 4,629,012 $ 118,050 $ (5,142,442) $ (18,433) $ (1,858,213) $ (1,541,064)
2019 totals $ 4,766,994 $ 221,867 $ (4,481,050) $ (33,527)
2020 totals $ 5,750,656 $ (54,655) $ (4,594,645) $ (27,712)
2021 totals $ 4,671,716 $ (140,457) $ (4,713,416) $ (5,429)
2022 totals $ 4,214,323 $ (67,871) $ (5,165,493) $ (9,983)
2023 totals $ 4,776,667 $ 2,630,350 $ (5,604,868) $ (41,060)
2024 totals $ 4,674,042 $ (2,588,775) $ (6,179,918) $ (152,424)
January $ 353,477.82 $ (14,904.50) $ (472,732.97) $ (16,971.00) $ (4,149,565.04) $ (3,846,861.18) 5.00%
February $ 257,491.68 $ (23,562.19) $ (467,953.93) $ (17,728.00) $ (4,377,755.29) $ (4,098,613.62) 5.00%
March $ 437,004.79 $ 8,246.58 $ (427,441.76) $ (18,221.00) $ (4,386,413.26) $ (4,099,025.01) 5.00%
April $ 379,944.60 $ 73,436.34 $ (385,994.19) $ (18,289.00) $ (4,410,751.85) $ (4,049,927.26) 5.00%
May $ 256,223.23 $ 98,403.81 $ (485,050.42) $ (18,855.00) $ (4,658,434.04) $ (4,199,205.64) 5.00%
June $ 535,635.47 $ (944,821.99) $ (20,263.00) $ (5,087,883.56) $ (4,628,655.16) 5.00%
July $ 860,001.08 $ (1,526,177.27)$ (22,587.00) $ (5,776,646.75) $ (5,317,418.35) 5.00%
August $ 665,440.38 $ (1,221,348.18)$ (25,228.00) $ (6,357,782.54) $ (5,898,554.14) 5.00%
September $ 995,599.35 $ (1,008,929.16)$ (26,519.00) $ (6,397,631.35) $ (5,938,402.95) 5.00%
October $ 841,938.68 $ (678,186.42) $ (26,316.00) $ (6,260,195.09) $ (5,800,966.69) 5.00%
November $ 850,589.35 $ (473,710.28) $ (25,299.00) $ (5,908,615.03) $ (5,449,386.63) 5.00%
December $ 877,558.84 $ (518,594.16) $ (23,871.00) $ (5,573,521.35) $ (5,114,292.95) 5.00%
2025 totals $ 7,310,905.28 $ 141,620.04 $ (8,610,940.73)$ (260,147.00)
January $ 740,526.82 $ (478,323.27) $ (22,677.00) $ (5,333,994.80) $ (4,874,766.40) 5.00%
February $ 778,777.90 $ (441,865.76) $ (21,523.00) $ (5,018,605.66) $ (4,559,377.26) 5.00%
March $ 677,061.08 $ (403,666.61) $ (20,341.00) $ (4,765,552.19) $ (4,306,323.79) 5.00%
April $ 557,132.21 $ (384,710.01) $ (19,497.00) $ (4,612,626.98) $ (4,153,398.58) 5.00%
May $ 674,960.18 $ (404,009.51) $ (18,655.00) $ (4,360,331.31) $ (3,901,102.91) 5.00%
June $ 494,338.94 $ (725,623.29) $ (18,650.00) $ (4,610,265.66) $ (4,151,037.26) 5.00%
July $ 793,696.54 $ (1,172,104.15)$ (19,998.00) $ (5,008,671.27) $ (4,549,442.87) 5.00%
August $ 614,136.12 $ (937,995.40) $ (21,544.00) $ (5,354,074.54) $ (4,894,846.14) 5.00%
September $ 918,840.43 $ (774,857.59) $ (22,009.00) $ (5,232,100.71) $ (4,772,872.31) 5.00%
October $ 777,026.72 $ (520,847.17) $ (21,267.00) $ (4,997,188.16) $ (4,537,959.76) 5.00%
November $ 785,010.43 $ (473,710.28) $ (20,173.00) $ (4,706,061.01) $ (4,246,832.61) 5.00%
December $ 809,900.62 $ (518,594.16) $ (19,002.00) $ (4,433,756.55)$ (3,974,528.15) 5.00%
2026 totals $ 8,621,408.00 $ $ (7,236,307.20)$ (245,336.00)
January $ 799,286.27 $ (478,323.27) $ (17,805.00) $ (4,130,598.54) $ (3,671,370.14) 5.00%
February $ 840,572.50 $ (441,865.76) $ (16,380.00) $ (3,748,271.80) $ (3,289,043.40) 5.00%
March $ 730,784.64 $ (403,666.61) $ (14,936.00) $ (3,436,089.77)$ (2,976,861.37) 5.00%
April $ 601,339.64 $ (384,710.01) $ (13,866.00) $ (3,233,326.14)$ (2,774,097.74) 5.00%
May $ 728,517.04 $ (404,009.51) $ (12,796.00) $ (2,921,614.61)$ (2,462,386.21) 5.00%
June $ 533,563.83 $ (725,623.29) $ (12,574.00) $ (3,126,248.06)$ (2,667,019.66) 5.00%
July $ 856,674.92 $ (1,172,104.15)$ (13,683.00) $ (3,455,360.30)$ (2,996,131.90) 5.00%
August $ 662,866.70 $ (937,995.40) $ (14,971.00) $ (3,745,459.99) $ (3,286,231.59) 5.00%
September $ 991,748.74 $ (774,857.59) $ (15,154.00) $ (3,543,722.84) $ (3,084,494.44) 5.00%
October $ 838,682.37 $ (520,847.17) $ (14,103.00) $ (3,239,990.64) $ (2,780,762.24) 5.00%
November $ 847,299.58 $ (473,710.28) $ (12,722.00) $ (2,879,123.35) $ (2,419,894.95) 5.00%
December $ 874,164.76 $ (518,594.16) $ (11,256.00) $ (2,534,808.75) $ (2,075,580.35) 5.00%
2027 totals $ 9,305,501.00 $ $ (7,236,307.20)$ (170,246.00)
January $ 843,582.47 $ (478,323.27) $ (9,801.00) $ (2,179,350.54) $ (1,720,122.14) 5.00%
February $ 887,156.77 $ (441,865.76) $ (8,153.00) $ (1,742,212.53) $ (1,282,984.13) 5.00%
March $ 771,284.50 $ (403,666.61) $ (6,493.00) $ (1,381,087.64) $ (921,859.24) 5.00%
April $ 634,665.70 $ (384,710.01) $ (5,234.00) $ (1,136,365.95) $ (677,137.55) 5.00%
May $ 768,891.23 $ (404,009.51) $ (3,975.00) $ (775,459.23) $ (316,230.83) 5.00%
June $ 563,133.77 $ (725,623.29) $ (3,570.00) $ (941,518.74) $ (482,290.34) 5.00%
July $ 904,151.58 $ (1,172,104.15)$ (4,481.00) $ (1,213,952.32) $ (754,723.92) 5.00%
August $ 699,602.57 $ (937,995.40) $ (5,555.00) $ (1,457,900.14) $ (998,671.74) 5.00%
September $ 1,046,711.15 $ (774,857.59) $ (5,508.00) $ (1,191,554.59) $ (732,326.19) 5.00%
October $ 885,161.89 $ (520,847.17) $ (4,206.00) $ (831,445.87) $ (372,217.47) 5.00%
November $ 894,256.66 $ (473,710.28) $ (2,588.00) $ (413,487.49) $ 45,740.91 5.00%
December $ 922,610.70 $ (518,594.16) $ (881.00) $ (10,351.95) $ 448,876.45 5.00%
2028 totals $ 9,821,209.00 $ $ (7,236,307.20)$ (60,445.00)
Pgm FA Totals$ 116,795,593.74 $ 459,228.40 $ (115,935,275.68)$ (870,670.00) $ 448,876.45
DSM balancing account as of May 31,2025(cash basis) $ (4,658,434.04)
Forecast DSM expenses through December 2028 $ 33,374,881.16
Forecast carrying charges through December 2028 $ (646,110.00)
Total expenses through December 2028 $ 32,728,771.16
Total DSM surcharge collections through December 2028 $ (28,080,689.06)
Forecast DSM balancing account as of December 31,2028(cash basis) $ (10,351.95)
Notes:
Figures provided through May 2025 are actuals.

ATTACHMENT C

Attachment C
Page 1 of 1
ATTACHMENT C
ROCKY MOUNTAIN POWER
ESTIMATED IMPACT OF PROPOSED SCHEDULE 191 ADJUSTMENT
FROM ELECTRIC SALES TO ULTIMATE CONSUMERS
DISTRIBUTED BY RATE SCHEDULES IN IDAHO
ADJUSTED HISTORICAL 12 MONTHS ENDED DECEMBER 2023
Present Sch 191 Revenue
Line Average Base Rev* Present Proposed Net Change
No. Description Sch. Customers MWH ($000) ($000) ($000) % ($000) %
(I) (2) (3) (4) (5) (6) (7) (8) (9) (10)
Residential Sales
1 Residential Service 1 61,756 619,659 $89,877 $2,247 $1,726 1.92% ($521) -0.6%
2 Residential Optional TOD 36 10,176 172,088 $22,408 $560 $430 1.92% ($130) -0.6%
3 AGA Revenue $1
4 Total Residential 71,933 791,748 $112,286 $2,807 $2,156 1.92% ($651) -0.6%
5 Commercial&Industrial
6 General Service-Large Power 6 1,120 305,548 $33,389 $835 $641 1.92% ($194) -0.6%
7 General Svc.-Lg.Power(R&F) 6A 186 22,162 $2,580 $65 $50 1.92% ($15) -0.6%
8 Subtotal-Schedule 6 1,306 327,711 $35,969 $899 $691 1.92% ($209) -0.6%
9 General Service-High Voltage 9 17 221,839 $18,537 $463 $356 1.92% ($108) -0.6%
10 Irrigation 10 5,726 551,496 $67,585 $1,690 $1,298 1.92% ($392) -0.6%
11 General Service 23 8,666 217,574 $26,799 $670 $515 1.92% ($155) -0.6%
12 General Service(R&F) 23A 2,565 42,247 $5,461 $137 $105 1.92% ($32) -0.6%
13 Subtotal-Schedule 23 11,230 259,822 32,259 806 619 1.92% (187) -0.6%
14 General Service Optional TOD 35 3 323 $38 $1 $1 1.92% ($0) -0.6%
15 General Service Optional TOD(R&F) 35A 1 56 $10 $0 $0 1.92% ($0) -0.6%
16 Subtotal-Schedule 35 4 379 48 1 1 1.92% (0) -0.6%
17 Special Contract 1 400 1 1,314,200 $109,130 $2,728 $2,095 1.92% ($633) -0.6%
18 AGA Revenue $520 $0
19 Total Commercial&Industrial 18,284 2,675,446 $264,049 $6,588 $5,060 1.92% ($1,528) -0.6%
20 Public Street Lighting
21 Security Area Lighting 7 174 230 $50 $1 $1 1.92% ($0) -0.6%
22 Security Area Lighting(R&F) 7A 119 93 $24 $1 $0 1.92% ($0) -0.6%
23 Street Lighting-Company 11 61 182 $86 $2 $2 1.92% ($1) -0.6%
24 Street Lighting-Customer 12 266 2,360 $396 $10 $8 1.92% ($2) -0.6%
25 AGA Revenue $0
26 Total Public Street Lighting 620 2,866 $556 $14 $11 1.92% ($3) -0.6%
27 Total Sales to Ultimate Customers 90,837 3,470,059 $376,891 $9,409 $7,226 1.92% ($2,183) -0.6%
*Including 2024 GRC base revenue,ICA revenue and 2025 ECAM revenue. Sch 191 Rate
Present Proposed
2.50% 1.92%

ATTACHMENT D
PROPOSED TARIFF REVISIONS

ROCKY MOUNTAIN
POWER
A DIVISION OF PACIFICORP
TenthNlnth Revision of Sheet No. 191
I.P.U.C.No. 1 Canceling NinthKigkfh Revision of Sheet No. 191
ROCKY MOUNTAIN POWER
ELECTRIC SERVICE SCHEDULE NO. 191
STATE OF IDAHO
Customer Efficiency Services Rate Adjustment
PURPOSE: The Customer Efficiency Services Rate Adjustment is designed to recover the costs
incurred by the Company associated with Commission-approved demand-side management expenditures.
APPLICATION: This Schedule shall be applicable to all retail tariff Customers taking service under
the Company's electric service schedules.
MONTHLY BILL: In addition to the Monthly Charges contained in the Customer's applicable
schedule, all monthly bills shall have the following percentage increases applied prior to the application of
electric service Schedule 34.
Schedule 1 2-.501.92%
Schedule 6 2.501.92%
Schedule 6A 2-.501.92%
Schedule 7 2401.92%
Schedule 7A 2:501.92%
Schedule 9 2-.501.92%
Schedule 10 2401.92%
Schedule 11 2.501.92%
Schedule 12 2-.501.92%
Schedule 23 2-.501.92%
Schedule 23A 1-501.92%
Schedule 24 2.501.92%
Schedule 35 2:501.92%
Schedule 35A 1-501.92%
Schedule 36 2.501.92%
Submitted Under Case No. PAC-E-25-1322 10
ISSUED: June 25,2025Tuly-8,2022 EFFECTIVE: November 1, 20250eteber4—,2 2-2

ROCKY MOUNTAIN
POWER
A DIVISION OF PACIFICORP
Tenth Revision of Sheet No. 191
I.P.U.C.No. 1 Canceling Ninth Revision of Sheet No. 191
ROCKY MOUNTAIN POWER
ELECTRIC SERVICE SCHEDULE NO. 191
STATE OF IDAHO
Customer Efficiency Services Rate Adjustment
PURPOSE: The Customer Efficiency Services Rate Adjustment is designed to recover the costs
incurred by the Company associated with Commission-approved demand-side management expenditures.
APPLICATION: This Schedule shall be applicable to all retail tariff Customers taking service under
the Company's electric service schedules.
MONTHLY BILL: In addition to the Monthly Charges contained in the Customer's applicable
schedule, all monthly bills shall have the following percentage increases applied prior to the application of
electric service Schedule 34.
Schedule 1 1.92%
Schedule 6 1.92%
Schedule 6A 1.92%
Schedule 7 1.92%
Schedule 7A 1.92%
Schedule 9 1.92%
Schedule 10 1.92%
Schedule 11 1.92%
Schedule 12 1.92%
Schedule 23 1.92%
Schedule 23A 1.92%
Schedule 24 1.92%
Schedule 35 1.92%
Schedule 35A 1.92%
Schedule 36 1.92%
Submitted Under Case No. PAC-E-25-13
ISSUED: June 25,2025 EFFECTIVE: November 1,2025

ATTACHMENT E
PRESS RELEASE

_ROCKY MOUNTAIN
POWER
POWERING YOUR GREATNESS
For release:June 25, 2025
FOR MORE INFORMATION
Media Hotline: [phone]
Rocky Mountain Power proposes decrease to energy efficiency charge
BOISE, Idaho—In planning to meet the electricity needs of customers, Rocky Mountain Power works
with customers to help them use electricity more efficiently.The utility promotes energy efficiency and
programs that coordinate when electricity is used, as well as reduce overall electrical use to help
customers save money.This also helps the company manage electric grid operations.These programs
are funded by the Customer Efficiency Services charge, which appears as a line item on the customer
bill.
The company filed a proposal June 25, 2025 to decrease the charge for all customer classes (except tariff
contracts)from 2.50 percent to 1.92 percent of each customer's bill. If approved by the Idaho Public
Utilities Commission,the 0.58 percent decrease would lower a typical residential customer's bill by
about$8.40 per year.These revenues do not affect company profits; they allow the company to recover
the investment it has already made on behalf of customers to provide demand side management
programs.The company request includes a proposed effective date of November 1, 2025.
"Customers benefit two ways from these programs," said Tim Solomon, regional business manager in
Rexburg. "First, participating customers benefit from lower bills as they take advantage of these
programs and use electricity more efficiently. Second, all customers benefit whether they participate in
the programs or not because the cost of electricity saved through these programs is about half the cost
of electricity generated by a new power plant. It's part of our balanced approach to use a variety of cost-
effective methods to provide electricity to our customers."
Programs currently provided for residential customers include cash incentives for energy efficient
appliances, improved insulation, batteries, energy efficient windows and weatherization for lower-
income customers. For business customers,the Wattsmart Business program provides services and
incentives to customers who complete energy efficiency projects, and also offers incentives for
participating in custom demand response options. Specific details of these programs are available on the
company's Web site, https://www.rockVmountainpower.net/savings-energy-choices.htm1.
The public can comment on the proposed rate change as the commission reviews the application.The
commission must approve the proposed change before it can take effect.A copy of the company's
application is available for public review on the commission's homepage at www.puc.idaho.gov under
Case No. PAC-E-25-13. Customers may also subscribe to the commission's RSS feed to receive periodic

updates via email. It also is available at the company's offices in Rexburg, Preston, Shelley and
Montpelier as noted below:
Rocky Mountain Power offices
Rexburg—127 East Main
Preston—509 S. 2nd East
Shelley—852 E. 1400 North
Montpelier—24852 U.S. Hwy 89
About Rocky Mountain Power
Rocky Mountain Power provides safe and reliable electric service to 2 million customers in Utah,
Wyoming and Idaho. The company works to meet customers' growing electricity needs while protecting
and enhancing the environment. Rocky Mountain Power is part of PacifiCorp, one of the lowest-cost
electricity providers in the United States. More information is available at:
www.rockymountainpower.net

ATTACHMENT F
BILL INSERT-ONSERT

Energy Efficiency
Charge Decrease
Rocky Mountain Power requests price decrease
for customers
On June 25,2025, Rocky Mountain Power asked the Idaho
Public Utilities Commission to decrease the energy efficiency
charge for all customer classes(except tariff contracts)from
2.50 percent to 1.92 percent of each customers bill.
If the 0.58 percent decrease is approved by the Idaho Public
Utilities Commission,atypical residential customer using
836 kilowatt-hours of electricity would see a bill decrease of
about$8.40 per year.These revenues do not affect company
profits;they allow the company to recover the investment
it has already made on behalf of customers to provide energy
efficiency programs.The company request includes a proposed
effective date of November 1,2025.
The public can comment on the proposed rate change as the
commission reviews the application.The commission must
approve the proposed change before it can take effect.A copy
of the company's application is available for public review
on the commission's homepage at www.puc.idaho.gov,under
Case No.PAC-E-25-13.Customers may also subscribe to the
commission's RSS feed to receive periodic updates via email. It
also is available at the company's offices in Rexburg, Preston,
Shelley and Montpelier as noted below:
Rocky Mountain Power offices
• Rexburg— 127 East Main
• Preston—509 S.2nd E.
• Shelley—852 E. 1400 N.
• Montpelier—24852 U.S.Hwy 89
For more information about your rates and rate schedule,
go to rockymountainpower.net/rates.
_ROCKY MOUNTAIN
POWER
©2025 Rocky Mountain Power

Energy Efficiency Charge Decrease
Rocky Mountain Power requests price decrease for customers
On June 25, 2025, Rocky Mountain The public can comment on the
Power asked the Idaho Public Utilities proposed rate change as the commission
Commission to decrease the energy reviews the application. The commission
efficiency charge for all customer classes must approve the proposed change
(except tariff contracts) from 2.50% to before it can take effect. A copy of
1.92% of each customer's bill. the company's application is available
If the 0.58% decrease is approved by for public review on the commission's
the Idaho Public Utilities Commission, a
homepage at www.puc.idaho.gov, under
typical residential customer using 836
Case No. PAC-E-25-13. Customers may
kilowatt-hours of electricity would see a also subscribe to the commission's RSS
bill decrease of about $8.40 per year. feed to receive periodic updates via
These revenues do not affect company
email. It also is available at the company's
profits; they allow the company to
offices in Rexburg, Preston, Shelley and
recover the investment it has already
Montpelier as noted below:
made on behalf of customers to Rocky Mountain Power offices
provide energy efficiency programs. The • Rexburg — 127 East Main
company request includes a proposed • Preston — 509 S. 2nd E.
effective date of November 1, 2025. • Shelley — 852 E. 1400 N.
• Montpelier — 24852 U.S. Hwy 89
To learn about your rates and rate schedule, go to RockyMountainPower.net/Rates.
For information about energy efficiency programs, visit Wattsmart.com.
_ROCKY MOUNTAIN
N POWER®
©2025 Rocky Mountain Power