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Home My WebLink About20240918IPC to Staff 62-63 -Supplemental.pdf -UIQAW POWER, LISA D. NORDSTROM Lead Counsel Inordstrom(WJdahopower.com RECEIVED Wednesday, September 18 2024 IDAHO PUBLIC September 18, 2024 UTILITIES COMMISSION VIA ELECTRONIC FILING 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-24-07 Application of Idaho Power Company for Authority to Increase Rates for Electric Service to Recover Costs Associated with Incremental Capital Investments and Certain Ongoing Operations and Maintenance Expenses Dear Commission Secretary: Attached for electronic filing, please find Idaho Power Company's First Supplemental Response to the Eighth Production Request of the Commission Staff to Idaho Power Company. Due to the collectively voluminous confidential and non-confidential information provided in response to data requests in this case, the Company is posting the attachments to these requests to the secure FTP site to allow parties to view the requested information remotely unless otherwise noted in the response. Because certain attachments contain confidential information, the FTP site is divided between confidential and non-confidential information. The login information for the non-confidential portion of the FTP site has been provided to all parties that have intervened to date. The login information for the confidential portion of the FTP site will be provided to the parties that execute the Protective Agreement in this matter. If you have any questions about the attached filing, please do not hesitate to contact me. Sincerely, OL ►� Lisa D. Nordstrom LDN:sg Attachments CERTIFICATE OF ATTORNEY ASSERTION THAT INFORMATION CONTAINED IN AN IDAHO PUBLIC UTILITIES COMMISSION FILING IS PROTECTED FROM PUBLIC INSPECTION Case No. IPC-E-24-07 Idaho Power Company's Application for Authority to Increase Rates for Electric Service to Recover Costs Associated with Incremental Capital Investments and Certain Ongoing Operations and Maintenance Expenses The undersigned attorney, in accordance with Commission Rules of Procedure 67, believes that the attachments in response to Request Nos. 62 and 63 to Idaho Power Company's First Supplemental Response to the Eighth Production Request of the Commission Staff dated September 18, 2024, contains information that Idaho Power Company claims are confidential public records exempt from disclosure by state or federal law (material nonpublic information under U.S. Securities and Exchange Commission Regulation FD) as described in Idaho Code § 74-101, et seq., and/or § 48- 801, et seq. As such, it is protected from public disclosure and exempt from public inspection, examination, or copying. DATED this 18th day of September 2024. 62�ramL eo Lisa D. Nordstrom Attorney for Idaho Power Company LISA D. NORDSTROM (ISB No. 5733) DONOVAN E. WALKER (ISB No. 5921) MEGAN GOICOECHEA ALLEN (ISB No. 7623) Idaho Power Company 1221 West Idaho Street (83702) P.O. Box 70 Boise, Idaho 83707 Telephone: (208) 388-5825 Facsimile: (208) 388-6936 Inordstrom(aMdahopower.com dwalker idahopower.com mgoicoecheaallenCabidahopower.com Attorneys for Idaho Power Company BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION IN THE MATTER OF THE ) APPLICATION OF IDAHO POWER ) CASE NO. IPC-E-24-07 COMPANY TO INCREASE RATES FOR ) ELECTRIC SERVICE TO RECOVER ) IDAHO POWER COMPANY'S COSTS ASSOCIATED WITH ) FIRST SUPPLEMENTAL INCREMENTAL CAPITAL ) RESPONSE TO THE EIGHTH INVESTMENTS AND CERTAIN ) PRODUCTION REQUEST OF THE ONGOING OPERATIONS AND ) COMMISSION STAFF TO IDAHO MAINTENANCE EXPENSES. ) POWER COMES NOW, Idaho Power Company ("Idaho Power" or "Company"), and in response to the Eighth Production Request of the Commission Staff ("Commission" or "Staff")to Idaho Power Company dated July 31, 2024, herewith supplements the following information: IDAHO POWER COMPANY'S FIRST SUPPLEMENTAL RESPONSE TO THE EIGHTH PRODUCTION REQUEST OF THE COMMISSION STAFF TO IDAHO POWER- 1 REQUEST FOR PRODUCTION NO. 62: Please provide updates for the Larkin workpaper "Incremental Plant Determination" sections "Incremental Plant" and "Elec Plant In Service", which includes the latest actuals through the most current month available. Please provide calculations for the 13-month average of monthly averages using actuals for the latest 13 months. Please supplement this request as additional monthly ending balances become known. FIRST SUPPLEMENTAL RESPONSE TO REQUEST FOR PRODUCTION NO. 62: Please see the file labeled "First Supplemental Response to Staff Request No. 62 — Confidential Attachment" for actual Electric Plant In Service balances through the most current month available, August 2024. The response to this Request is sponsored by Matthew Larkin, Revenue Requirement Senior Manager, Idaho Power Company. IDAHO POWER COMPANY'S FIRST SUPPLEMENTAL RESPONSE TO THE EIGHTH PRODUCTION REQUEST OF THE COMMISSION STAFF TO IDAHO POWER- 2 REQUEST FOR PRODUCTION NO. 63: Please provide updates for the Larkin workpaper "Depreciation and Amortization Expense" sections "Expense" and "Incremental", which includes the latest actuals through the most current month available. Please supplement this request as additional monthly ending balances become known. FIRST SUPPLEMENTAL RESPONSE TO REQUEST FOR PRODUCTION NO. 63: Please see the file labeled "First Supplemental Response to Staff Request No. 63 — Confidential Attachment" for actual 2024 Depreciation Expense and Accumulated Reserve balances through the most current month available, August 2024. The response to this Request is sponsored by Matthew Larkin, Revenue Requirement Senior Manager, Idaho Power Company. IDAHO POWER COMPANY'S FIRST SUPPLEMENTAL RESPONSE TO THE EIGHTH PRODUCTION REQUEST OF THE COMMISSION STAFF TO IDAHO POWER- 3 DATED at Boise, Idaho, this 18th day of September 2024. LISA D. NORDSTROM Attorney for Idaho Power Company DONOVAN E. WALKER Attorney for Idaho Power Company MEGAN GOICOECHEA ALLEN Attorney for Idaho Power Company IDAHO POWER COMPANY'S FIRST SUPPLEMENTAL RESPONSE TO THE EIGHTH PRODUCTION REQUEST OF THE COMMISSION STAFF TO IDAHO POWER-4 CERTIFICATE OF SERVICE I HEREBY CERTIFY that on the 18th day of September 2024, 1 served a true and correct copy of Idaho Power Company's First Supplemental Response to the Eighth Production Request of the Commission Staff to Idaho Power upon the following named parties by the method indicated below, and addressed to the following: Commission Staff Hand Delivered Chris Burdin U.S. Mail Deputy Attorney General Overnight Mail Idaho Public Utilities Commission FAX 11331 W. Chinden Blvd., Bldg No. 8 FTP Site Suite 201-A (83714) X Email Chris.Burdin(c�puc.idaho.gov PO Box 83720 Boise, ID 83720-0074 Industrial Customers of Idaho Power Hand Delivered Peter J. Richardson U.S. Mail Richardson Adams, PLLC Overnight Mail 515 N. 27' Street FAX Boise, Idaho 83702 FTP Site X Email peterC@richardsonadams.com Dr. Don Reading Hand Delivered 280 Silverwood Way U.S. Mail Eagle, Idaho 83616 Overnight Mail FAX FTP Site X Email dreading(@mindspring.com Idaho Irrigation Pumpers Association, Hand Delivered Inc. U.S. Mail Eric L. Olsen Overnight Mail ECHO HAWK & OLSEN, PLLC FAX 505 Pershing Avenue, Suite 100 FTP Site P.O. Box 6119 X Email elo _echohawk.com Pocatello, Idaho 83205 Lance Kaufman, Ph.D. Hand Delivered 2623 NW Bluebell Place U.S. Mail Corvallis, OR 97330 Overnight Mail FAX FTP Site X Email lance aegisinsight.com IDAHO POWER COMPANY'S FIRST SUPPLEMENTAL RESPONSE TO THE EIGHTH PRODUCTION REQUEST OF THE COMMISSION STAFF TO IDAHO POWER- 5 Idaho Conservation League Hand Delivered Brad Heusinkveld U.S. Mail 710 N. 6t" Street Overnight Mail Boise, Idaho 83702 FAX FTP Site X Email bheusinkveld(b-idahoconservation.org Micron Technology, Inc. Hand Delivered Austin Rueschhoff U.S. Mail Thorvald A. Nelson Overnight Mail Austin W. Jensen FAX Kristine A.K. Roach FTP Site Holland & Hart LLP X Email 555 17t" Street, Suite 3200 darueschhoff(a-hol land hart.com Denver, CO 80202 tnelson(a)-hol land hart.com awjensen(d0ollandhart.com karoach(cbhol land hart.com aclee(o)-hollandhart.com mamcmillen(a)hol land hart.com Jim Swier Hand Delivered Micron Technology, Inc. U.S. Mail 8000 South Federal Way Overnight Mail Boise, ID 83707 FAX FTP Site X Email jswier(q)_micron.com City of Boise Hand Delivered Ed Jewell U.S. Mail Deputy City Attorney Overnight Mail Boise City Attorney's Office FAX 150 N. Capitol Blvd. FTP Site P.O. Box 500 X Email Boise, Idaho 83701 BoiseCityAttorney(a-).cityofboise.org ejewell(a-)-cityofboise.org IDAHO POWER COMPANY'S FIRST SUPPLEMENTAL RESPONSE TO THE EIGHTH PRODUCTION REQUEST OF THE COMMISSION STAFF TO IDAHO POWER- 6 Steven Hubble Hand Delivered Boise City Dept. of Public Works U.S. Mail 150 N. Capitol Blvd. Overnight Mail P.O. Box 500 FAX Boise, Idaho 83701-0500 FTP Site X Email shubble cityofboise.org Federal Executive Agencies Hand Delivered Peter Meier U.S. Mail Emily W. Medlyn Overnight Mail U.S. Department of Energy FAX 1000 Independence Ave., S.W. FTP Site Washington, DC 20585 X Email Pete r.meier(a�hg.doe.gov emily.medlyn(o)_hg.doe.gov Stacy Gust Regulatory Administrative Assistant IDAHO POWER COMPANY'S FIRST SUPPLEMENTAL RESPONSE TO THE EIGHTH PRODUCTION REQUEST OF THE COMMISSION STAFF TO IDAHO POWER- 7