20240530Compliance Filing.pdf

-0IQAHO POWER.
RECEIVED
MATT LARKIN Thursday, May 30, 2024
Revenue Requirement Senior Manager IDAHO PUBLIC
miarkin(cDidahopower.com UTILITIES COMMISSION
VIA ELECTRONIC FILING
May 30, 2024
Commission Secretary
Idaho Public Utilities Commission
11331 W. Chinden Blvd., Bldg 8,
Suite 201-A (83714)
PO Box 83720
Boise, Idaho 83720-0074
RE: Case No. IPC-E-03-11
Annual Compliance Filing of Asset Retirement Obligations ("ARO") Accounting
Standards Codification ("ASC") 410
Dear Commission Secretary:
In Order No. 29414, the Idaho Public Utilities Commission directed Idaho Power Company
("Company")to record regulatory assets or liabilities associated with implementation of Statement
of Financial Accounting Standards 143 (now codified as Accounting Standards Codification
("ASC") 410). As a result of the Order, the Company is required to file annually, and as part of
any rate case filing, all journal entries made under the requirements of ASC 410.
On May 17, 2012, Order No. 32549 was issued authorizing the Company to begin recovery
of incremental costs related to the early closure of the Boardman power plant ("Boardman") and
established the Boardman balancing account which tracks the difference between cost and
revenues, including Boardman-related ARO balances. In addition, Order No. 32549 exempted
Boardman-related ARO balances from the deferral treatment required under Order No. 29414.
Pursuant to Order No. 29414, attached please find all journal entries made under the
requirements of ASC 410. If you have any questions regarding this filing, please contact
Regulatory Consultant Courtney Waites at [phone] or cwaites idahopower.com.
Very truly yours,
Matt Larkin
MTL/sg
Enclosures
cc: Terri Carlock

Idaho Power Company
Accounting Standards Codification 410 (previously FAS 143)Accounting
Year Ended December 31,2023
Recorded journal entries
FERC Account Dr. Cr.
December 31,2022 balances
ARO Assets 101/107 28,236,601
Accumulated depreciation-ARO assets 108 - 21,023,468
Accumulated depreciation-removal costs 108 180,087,019 -
Cash 131 - 3,143,126
Regulatory assets 182.3/4/5/6 27,265,891 -
ARO Liabilities 230 - 37,494,839
Regulatory liabilities 254 - 180,087,019
Accretion expense(Boardman only),cumulative 411 2,222,416 -
Depreciation expense(Boardman only),cumulative 403 3,936,524
Calendar year 2023 Accretion,Depreciation,Regulatory Asset Amortization,and Removal Cost Entries
1 Regulatory asset(accretion expense) 182.3 1,162,513
Accretion expense(Boardman only) 411 12,995
ARO liabilities 230 1,175,508
To record accretion expense on the asset retirement
obligations
2 Regulatory asset(depreciation expense) 182.3 6,048,026
Accumulated depreciation-ARO assets 108 6,048,026
To record depreciation on the ARO assets
3 Accumulated depreciation-removal costs 108 4,717,803
Regulatory liabilities 254 4,717,803
To record adjustments to the ARO regulatory liability for the
difference between regulatory-approved removal costs and
the ASC 410 accruals
Calendar year 2023 changes in estimates
4 ARO Assets 107 11,683,135
Regulatory asset 182.3/182.4 335,083
ARO Liabilities 230 11,348,052
To record revision of estimated AROs at Valmy,Bridger,
and Boardman.
Calendar year 2023 retirements
5 Regulatory asset 182.3 385,519
Cash 131 784,006
ARO Liabilities 230 1,169,525
To primarily record retirements at Bridger and retirement
spend at Boardman.
December 31,2023 balances
ARO Assets 101/107 39,919,736 -
Accumulated depreciation-ARO assets 108 - 27,071,494
Accumulated depreciation-removal costs 108 175,369,216 -
Cash 131 - 3,927,132
Regulatory assets 182.3/4/5/6 33,755,829 -
ARO Liabilities 230 - 48,848,874
Regulatory liabilities 254 175,369,216
Accretion expense(Boardman only),cumulative 411 2,235,411 -
Depreciation expense(Boardman only),cumulative 403 3,936,524 -
Balance check: 255,216,715 255,216,715