20230831Quarterly Report.pdf

 
August 31, 2023
VIA ELECTRONIC DELIVERY
Jan Noriyuki
Idaho Public Utilities Commission
11331 W. Chinden Blvd.
Building 8 Suite 201A
Boise, ID 83714
Re: Rocky Mountain Power’s
Quarterly Energy Cost Adjustment Mechanism (ECAM) Report
Q2 2023 (January 2023 through June 2023)
Ms. Noriyuki:
Please find enclosed for review Rocky Mountain Power’s (RMP) Q2 2023 (January 2023
through June 2023) energy cost adjustment mechanism (ECAM) report and a confidential zip
folder containing the ECAM work papers. The Idaho Public Utilities Commission (IPUC)
authorized implementation of an ECAM in Order 30904 to track and defer the difference
between base net power costs (NPC), established in a general rate case (GRC), and actual NPC
incurred by RMP to serve its Idaho customers.

This report contains confidential information and is being provided to those that have executed
the confidentiality agreement to receive this quarterly ECAM report.
Informal inquiries may be directed to Mark Alder, Idaho Regulatory Manager at [phone].
Sincerely,

Joelle Steward
Senior Vice President, Regulation and Customer & Community Solutions
Enclosures
cc: Terri Carlock
Mike Louis (C)
TJ Budge (C)
Brian Collings (C)
Maurice Brubaker (C)
Eric Olsen (C)
Jim Smith
RECEIVED
2023 AUGUST 31, 2023 4:09PM
IDAHO PUBLIC
UTILITIES COMMISSION

Idaho
Energy Cost Adjustment Mechanism (ECAM)
Q2 2023
(January 1, 2023 through June 30, 2023)

Summary
Summary Table of Deferred ECAM Balance
NPC Differential for Deferral 30,386,801$
EITF 04-6 Adjustment (225,823)
LCAR 543,121
Total Deferral Before Sharing 30,704,100
Sharing Band 90%
Customer Responsibility 27,633,690
Production Tax Credits (324,558)
REP QF Adjustment -
Wind Liquidated Damages -
REC Deferral (376,143)
Interest on Deferral 476,119
Annual Deferral (Jan - Dec 2023) 27,409,107
Unamortized Previous Balance 41,941,478
ECAM Rider Revenues (12,000,864)
Total Company Recover 57,349,722$
-
Idaho
Energy Cost Adjustment Mechanism (ECAM)
Q2 2023
(January 1, 2023 through June 30, 2023)
Exhibit 1
Idaho Energy Cost Adjustment Mechanism Deferral
January 1, 2023 - December 31, 2023
LineNo.CY 2021PAC-E-21-07 86,534,565$ PAC-E-21-07 3,526,3591 ID Base NPC Embedded in Rates ($)2 Annual Idaho Base Load @ meter (MWh)
3 NPC Rate Embedded in Base Rates ($/MWh)Line 1 / Line 2 24.54$
Jan-23 Feb-23 Mar-23 Apr-23 May-23 Jun-23 Jul-23 Aug-23 Sep-23 Oct-23 Nov-23 Dec-23 TotalLine 3 $ 24.54 $ 24.54 $ 24.54 $ 24.54 $ 24.54 24.54 $ 299,332 266,756 287,605 267,422 266,927 312,9924 NPC Rate Embedded in Base Rates ($/MWh)5 ID Actual Sales @ Meter (MWh)6 ID NPC Collected in Rates ($)Line 4 x Line 5 $ 7,345,407 $ 6,546,028 $ 7,057,643 $ 6,562,371 $ 7,680,628 6,550,208 $ 41,742,285$
Adjusted Actual NPC $ 199,956,830 $ 217,193,758 $ 182,034,465 163,970,849 $ $ 1,142,211,613 5,391,997 4,739,803 214,249,766 $ 164,805,945 $ 4,840,508 4,575,977 4,647,513 4,993,203 29,189,000Line 7 / Line 8 $ 37.08 $ 45.82 $ 44.26 $ 36.02 $ 36.46 35.28 $ 39.13$309,600 255,102 273,360 267,595 342,454 415,263
7 Total Company Adjusted Actual NPC ($)8 Total Company Load @ Input (MWh)9 Actual NPC ($/MWh)10 ID Actual Load @ Input (MWh)
11 Actual ID NPC Line 9 x Line 10 $ 11,481,208 $ 11,689,639 $ 12,099,401 $ 9,637,575 $ 15,139,001 12,082,262 $ 72,129,086$
12 NPC Differential Line 11 - Line 6 $ 4,135,801 $ 5,143,611 $ 5,041,759 $ 3,075,203 $ 7,458,373 5,532,054 $ 30,386,801$
EITF 04-6 Adjustment
13 Idaho Allocated EITF 04-6 Deferral Adjustment ($)$ 57,959 $ (40,638) $ (82,041) $ (115,519) $ 65,081 (110,664) $ (225,823)$
LCAR14 Actual Idaho Jurisdictional ECPC minus NPC (Assume Actual = BaPAC-E-21-07 $ 2,568,242 $ 2,568,242 $ 2,568,242 $ 2,568,242 $ 2,568,242 2,568,242 $ 15,409,454$
PAC-E-21-07 $ 8.74 $ 8.74 $ 8.74 $ 8.74 $ 8.74 8.74 $Line 5 299,332 266,756 287,605 267,422 266,927 312,99215 LCAR Rate @ Meter ($/MWh)16 ID Actual Sales @ Meter (MWh)17 LCAR Revenue Collected through Base Rates ($)Line 15 x Line 16 $ 2,616,035 $ 2,331,339 $ 2,513,549 $ 2,337,160 $ 2,735,422 2,332,828 $ 14,866,333$
18 LCAR Adjustment Line 14 - Line 17 $ (47,792) $ 236,903 $ 54,694 $ 231,082 $ (167,180) 235,414 $ 543,121$
4,145,968 5,339,876 5,014,411 3,190,767 5,656,804 7,356,274 30,704,100ECAM Deferral19 Total ECAM Deferral (NPC Deferral, EITF 04-6 Adjustment, LCAR Sum of Lines: 12, 13, 1820Total ECAM Deferral after 90% Sharing Line 19 x 90%$ 3,731,371 $ 4,805,889 $ 4,512,970 $ 2,871,690 $ 6,620,646 5,091,124 $ 27,633,690$
Idaho Energy Cost Adjustment Mechanism Deferral
January 1, 2023 - December 31, 2023
LineNo.CY 2021
PAC-E-21-07 $ (4.16) $ (4.16) $ (4.16) $ (4.16) $ (4.16) (4.16) $Line 5 299,332 266,756 287,605 267,422 266,927 312,992Line 21 x Line 22 $ (1,246,393) $ (1,110,752) $ (1,197,565) $ (1,113,525) $ (1,303,275) (1,111,461) $ (1,506,351) (1,527,575) (1,349,209) (1,300,860) (898,278) (825,256)
Production Tax Credits (PTCs)
21 ID Allocated PTCs in Rates ($/MWh)22 ID Actual Sales @ Meter (MWh)23 ID PTCs in Rates ($)24 ID Allocated Actual PTCs ($)25 ID PTCs Deferral ($)Line 24 - Line 23 $ (259,958) $ (416,823) $ (151,644) $ (187,335) $ 478,018 213,183 $ (324,558)$
Situs Assigned REP QF Adjustment26 ID REP QF Adjustment ($)$ - $ - $ - $ - $ - - $ -$
Wind Liquidated Damages
27 ID Allocated Wind Liquidated Damages ($)$ - $ - $ - $ - $ - - $ -$
PAC-E-21-07 $ (0.07) $ (0.07) $ (0.07) $ (0.07) $ (0.07) (0.07) $Line 5 299,332 266,756 287,605 267,422 266,927 312,992
Renewable Energy Credits (REC) Revenue28 ID REC Revenue in Rates ($/MWh)29 ID Actual Sales @ Meter (MWh)
30 ID REC Revenue in Rates ($)Line 28 x Line 29 $ (20,489) $ (18,260) $ (19,687) $ (18,305) $ (21,424) (18,271) $
(5,402) (118,766) (228,071) (97,144) (39,468) (3,729)31 ID Allocated Actual REC Revenue ($)32 REC Revenue Adjustment ($)$ 15,087 $ (100,506) $ (208,384) $ (78,838) $ 17,696 (21,197) $ (376,143)$
33 Total Deferral $ 3,486,500 $ 4,288,559 $ 4,152,942 $ 2,605,517 $ 7,116,360 5,283,110 $ 26,932,989$
34 Interest Rate
Line 31 - Line 30
Sum of Lines 20, 25, 26, 27, 32
Order No. 35621 2.00%2.00%2.00%2.00%2.00%2.00%2.00%2.00%2.00%2.00%2.00%2.00%
$ 41,941,478 $ 43,422,487 $ 44,795,997 $ 47,914,574 $ 52,278,598 47,851,919 $ Line 20 3,731,371 4,805,889 4,512,970 2,871,690 5,091,124 6,620,646Line 25 (259,958) (416,823) (187,335) 213,183 478,018Line 26 -- -- -Line 27 -- -- -
Line 32 15,087 (100,506) (78,838) (21,197) 17,696 (2,076,569) (2,988,503) (2,747,911) (939,804) (2,136,517)
ECAM Balancing Account ($)
35 Beginning Balance36 ECAM Deferral After Sharing37 PTCs Deferral38 REP Situs Adjustment39 Wind Liquidated Damages
40 REC Revenue Adjustment41 Less: Monthly ECAM Rider Revenues allocated to ECAM42 Interest 71,077 73,454
(151,644) --
(208,384) (1,111,559) 77,194 79,739 83,373 91,281
43 Total ECAM Deferral Balance ($)$ 43,422,487 $ 44,795,997 $ 47,914,574 $ 47,851,919 $ 52,278,598 $ 57,349,722 $ - $ - $ - $ - $ - $ 57,349,722 - $