20250227Effective Date Deferral.pdf

_ ROCKY MOUNTAIN 1407 W.North Temple,Suite 330
POWER® Salt Lake City,UT 84116 4
A DIVISION OF PACIFICORP RECEIVED
February 27, 2025
IDAHO PUBLIC
February 27, 2025 UTILITIES COMMISSION
VIA ELECTRONIC DELIVERY
Commission Secretary
Idaho Public Utilities Commission
11331 W. Chinden Blvd
Building 8 Suite 201A
Boise, ID 83714
RE: CASE NO. PAC-E-24-04
IN THE MATTER OF ROCKY MOUNTAIN POWER'S APPLICATION FOR
AUTHORITY TO INCREASE ITS RATES AND CHARGES IN IDAHO
Attention: Commission Secretary
In response to Notice of Suspension Order No. 36350, Rocky Mountain Power hereby submits for
filing with the Idaho Public Utilities Commission its deferral calculation for the suspension of the
effective date from January 1, 2025 to February 1, 2025.
Informal inquiries may be directed to Mark Alder, Idaho Regulatory Manager at(801) 220-2313.
Very truly yours,
a"_D
Joe Steward 9L
Senior Vice President, Regulation

CERTIFICATE OF SERVICE
I hereby certify that on this day, I caused to be served, via email, a true and correct copy
of Effective Date Suspension Deferral in Case No. PAC-E-24-04 to the following:
Service List
Commission Staff
Adam Triplett(C)
Deputy Attorney General
Idaho Public Utilities Commission
11331 W. Chinden Blvd., Bldg No. 8,
Suite 201-A
Boise, ID 83720-0074
adam.triplettkpuc.idaho.gov
Idaho Irrigation Pumpers Association, Inc
Eric L. Olsen(C) Lance Kaufman, Ph.D. (C)
Echo Hawk& Olsen PLLC 2623 NW Bluebell Place
505 Pershing Ave., Suite 100 Corvallis, OR 97330
PO Box 6119 lance cgae isg insi h
Pocatello, ID 83205
elo&echohawk.com
Idaho Conservation League
Matthew Nykiel Brad Heusinkveld
Idaho Conservation League Idaho Conservation League
710 N. 6tn Street 710 N. 6tn Street
Boise, ID 83702 Boise, ID 83702
matthew.nykielkgmail.com bheusinkveld(&idahoconservation.org
Bayer Corporation
Thomas J. Budge (C) Brian C. Collins (C)
Racine, Olson PLLP Greg Meyer(C)
201 E. Center Brubaker&Associates
Pocatello, ID 83204-1391 16690 Swingley Ridge Rd., #140
tj&racineolson.com Chesterfield, MO 63017
bcollinskconsultbai.com
gme er&consultbai.com
Kevin Higgins (C)
Neal Townsend(C)
Energy Strategies LLC
khi ggins&energystrat.com
ntownsend&energystrat.com
Page 1 of 2

PacifiCorp Idaho Industrial Customers
Ronald L. Williams (C) Bradley Mullins (C)
Brandon Helgeson(C) MW Analytics
Hawley Troxell Ennis &Hawley LLP Teitotie 2, Suite 208
PO Box 1617 Oulunsalo Finland, FI 90460
Boise, ID 83701 brmullins@mwanal . ics.com
rwilliams(aD,hawleytroxell.com
bhel eg [e-mail]
Val Steiner Kyle Williams
Itafos Conda LLC BYU Idaho
val.steiner(a-)itafos.com [e-mail]
PacifiCor , dba Rocky Mountain Power
Mark Alder Joe Dallas
Michael Snow PacifiCorp/dba Rocky Mountain Power
PacifiCorp/dba Rocky Mountain Power 825 NE Multnomah Street, Suite 2000
1407 West North Temple, Suite 330 Portland, OR 97232
Salt Lake City,UT 84116 [e-mail]
mark.alder@pacificoi p.com
[e-mail]
Data Request Response Center
PacifiCorp
[e-mail]
Dated this 271h day of February 2025.
Rick Loy
Coordinator, Regulatory Operations
Page 2 of 2

Idaho General Rate Case
PAC-E-24-04
Rate Effective Delay Deferral Calculation
Base Rates Opening Bal. Amortization Interest Ending Bal.
NPC in Base Rates 86,534,565 2025 January 1,700,426 1,700,426
Ordered NPC 128,240,000 February 1,700,426 1,700,426
Variance 41,705,434 March 1,700,426 1,700,426
90%Recovery through ECAM 37,534,891 April 1,700,426 1,700,426
10%Deferrable 4,170,543 May 1,700,426 1,700,426
June 1,700,426 1,700,426
Total Increase in Base Rates 57,940,000 July 1,700,426 1,700,426
Less:Increase in NPC 41,705,434 August 1,700,426 1,700,426
Total Deferrable Non-NPC Increase 16,234,566 September 1,700,426 1,700,426
October 1,700,426 1,700,426
Grand Total-Annual Deferral 20,405,109 November 1,700,426 1,700,426
Monthly Deferral 1,700,426 December 1,700,426 1,700,426
***Amount will be deferred until next GRC.No interest is authorized.