The URL can be used to link to this page

Home My WebLink About20231010IPC to Vote Solar 20-21.pdf MEGAN GOICOECHEA ALLEN Corporate Counsel mgoicoecheaallen@idahopower.com October 10, 2023 Jan Noriyuki, Secretary Idaho Public Utilities Commission 11331 W. Chinden Boulevard Building 8, Suite 201-A Boise, Idaho 83714 Re: Case No. IPC-E-23-14 Application for Authority to Implement Changes to the Compensation Structure Applicable to Customer On-Site Generation Under Schedules 6, 8, and 84 and to Establish an Export Credit Rate Methodology Dear Ms. Noriyuki: Attached for electronic filing is Idaho Power Company’s Response to Vote Solar’s Second Production Request in the above-entitled matter. If you have any questions about the attached documents, please do not hesitate to contact me. Sincerely, Megan Goicoechea Allen MGA:sg Enclosures IDAHO POWER COMPANY’S RESPONSE TO THE SECOND PRODUCTION REQUEST OF VOTE SOLAR - 1 MEGAN GOICOECHEA ALLEN (ISB No. 7623) LISA D. NORDSTROM (ISB No. 5733) Idaho Power Company 1221 West Idaho Street (83702) P.O. Box 70 Boise, Idaho 83707 Telephone: (208) 388-2664 Facsimile: (208) 388-6936 mgoicoecheaallen@idahopower.com lnordstrom@idahopower.com Attorneys for Idaho Power Company BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION IN THE MATTER OF IDAHO POWER COMPANY’S APPLICATION FOR AUTHORITY TO IMPLEMENT CHANGES TO THE COMPENSATION STRUCTURE APPLICABLE TO CUSTOMER ON-SITE GENERATION UNDER SCHEDULES 6, 8, AND 84 AND TO ESTABLISH AN EXPORT CREDIT RATE METHODOLOGY ) ) ) ) ) ) ) ) ) CASE NO. IPC-E-23-14 IDAHO POWER COMPANY’S RESPONSE TO THE SECOND PRODUCTION REQUEST OF VOTE SOLAR TO IDAHO POWER COMPANY COMES NOW, Idaho Power Company (“Idaho Power” or “Company”), and in response to the Second Production Request of Vote Solar dated September 19, 2023, herewith submits the following information: IDAHO POWER COMPANY’S RESPONSE TO THE SECOND PRODUCTION REQUEST OF VOTE SOLAR - 2 VOTE SOLAR’S REQUEST FOR PRODUCTION NO. 20: Regarding Exhibit 2 – Ellsworth DI Testimony filed May 5, 2023: (a) Please explain how Idaho Power derived the “Maximum Output” for 2020, 2021, and 2022 as presented in cells F18, F23, and F28 of the tab “Gen_Capacity.” (b) Do the values in cells F18, F23, and F28 correspond with the nameplate capacity of rooftop solar on Idaho Power’s system each year? If not, what do they represent? (c) Why do the ELCC values presented in cells F19 and F24 differ from the ELCC values presented in Case No. IPC-E-22-22? (See Case No. IPC-E-22-22 “Appendix 4.12 ELCC & NREL Results” tab “Options,” which identifies a real-time ELCC of 4.230% in 2020 and 10.918% in 2021.) RESPONSE TO VOTE SOLAR’S REQUEST FOR PRODUCTION NO. 20: a) The “Maximum Output” values for 2020, 2021, and 2022 as presented in cells F18, F23, and F28 of the tab “Gen_Capacity” from Exhibit 2 – Ellsworth DI Testimony represent the historical maximum export hour from all customers with on-site generation. Please see Attachment – Response to Vote Solar Request No. 20 for the hourly 8,760 customer-generator exports by year and corresponding maximum output values. b) No, the values in cells F18, F23, and F28 do not correspond with the nameplate capacity of rooftop solar on Idaho Power’s system per year. Please see response to Part A of this request for an explanation of the maximum output values. c) The ELCC values presented in cells F19 and F24 differ from the ELCC values in Case No. IPC-E-22-22 primarily due to the methodology update to the calculation’s IDAHO POWER COMPANY’S RESPONSE TO THE SECOND PRODUCTION REQUEST OF VOTE SOLAR - 3 denominator which utilizes maximum output (IPC-E-23-14) instead of nameplate capacity (IPC-E-22-22). Idaho Power implemented this update in recognition that not all customers with on-site generation will be exporting to the system during the identified On-Peak hours. IPC-E-22-22 IPC-E-23-14 2020 2021 2020 2021 ELCC (MW) 2 7 2 5 Nameplate / Maximum Output (MW) 46.2947 64.1144 26.6706 40.2602 Effective Load Carrying Capability 4.32% 10.92% 7.50% 12.42% Inputs to the Company’s Reliability and Capacity Assessment Tool (which is utilized to perform ELCC calculations) were also updated between the timing of the two filings, such as: i. Capacity Benefit Margin (“CBM”) decreased from 330 MW to 200 MW ii. Gas unit monthly capacities iii. Firm transmission monthly capacities iv. Valmy coal seasonal capacity v. Script enhancements vi. 2012 Loss Study factors utilized (IPC-E-22-22), 2022 Loss Study factors utilized (IPC-E-23-14) vii. 0.05 event-days/year LOLE threshold utilized (IPC-E-22-22), 0.1 event- days/year LOLE threshold utilized (IPC-E-23-14) The response to this Request is sponsored by Jared L. Ellsworth, Transmission, Distribution & Resource Planning Director, Idaho Power Company. IDAHO POWER COMPANY’S RESPONSE TO THE SECOND PRODUCTION REQUEST OF VOTE SOLAR - 4 VOTE SOLAR’S REQUEST FOR PRODUCTION NO. 21: Regarding Idaho Power’s customers with rooftop solar: (a) Please provide the number of customers with solar installations in each year through 2022, broken out by rate schedule. (b) Please provide the capacity of customer solar installations in each year through 2022, broken out by rate schedule. RESPONSE TO VOTE SOLAR’S REQUEST FOR PRODUCTION NO. 21: Please see the Excel file labeled “Attachment – Response to Vote Solar Request No. 21” for the count of solar installations and total capacity for 2002 through 2022. The response to this Request is sponsored by Grant T. Anderson, Regulatory Consultant, Idaho Power Company. IDAHO POWER COMPANY’S RESPONSE TO THE SECOND PRODUCTION REQUEST OF VOTE SOLAR - 5 DATED at Boise, Idaho, this 10th day of October 2023. MEGAN GOICOECHEA ALLEN Attorney for Idaho Power Company IDAHO POWER COMPANY’S RESPONSE TO THE SECOND PRODUCTION REQUEST OF VOTE SOLAR - 6 CERTIFICATE OF SERVICE I HEREBY CERTIFY that on the 10th day of October, 2023, I served a true and correct copy of Idaho Power Company’s Response to the Second Production Request of Vote Solar upon the following named parties by the method indicated below, and addressed to the following: Commission Staff Chris Burdin Deputy Attorney General Idaho Public Utilities Commission 11331 W. Chinden Blvd., Bldg No. 8 Suite 201-A (83714) PO Box 83720 Boise, ID 83720-0074 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email Chris.burdin@puc.idaho.gov IdaHydro C. Tom Arkoosh ARKOOSH LAW OFFICES 913 W. River Street, Suite 450 P.O. Box 2900 Boise, Idaho 83701 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email tom.arkoosh@arkoosh.com erin.cecil@arkoosh.com Idaho Conservation League Matthew A. Nykiel Idaho Conservation League 710 North 6th Street Boise, Idaho 83702 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email matthew.nykiel@gmail.com Brad Heusinkveld Idaho Conservation League 710 North 6th Street Boise, Idaho 83702 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email bheusinkveld@idahoconservation.org Idaho Irrigation Pumpers Association, Inc. Eric L. Olsen ECHO HAWK & OLSEN, PLLC 505 Pershing Avenue, Suite 100 P.O. Box 6119 Pocatello, Idaho 83205 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email elo@echohawk.com IDAHO POWER COMPANY’S RESPONSE TO THE SECOND PRODUCTION REQUEST OF VOTE SOLAR - 7 Lance Kaufman, Ph.D. 2623 NW Bluebell Place Corvallis, OR 97330 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email lance@aegisinsight.com Clean Energy Opportunities for Idaho Kelsey Jae Law for Conscious Leadership 920 N. Clover Dr. Boise, Idaho 83703 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email kelsey@kelseyjae.com Michael Heckler Courtney White Clean Energy Opportunities for Idaho 3778 Plantation River Dr., Suite 102 Boise, ID 83703 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email mike@cleanenergyopportunities.com courtney@cleanenergyopportunities.com Micron Technology, Inc. Austin Rueschhoff Thorvald A. Nelson Austin W. Jensen Holland & Hart, LLP 555 Seventeenth Street, Suite 3200 Denver, Colorado 80202 Hand Delivered U.S. Mail Overnight Mail FAX _ FTP Site X Email darueschhoff@hollandhart.com tnelson@hollandhart.com awjensen@hollandhart.com aclee@hollandhart.com clmoser@hollandhart.com Jim Swier Micron Technology, Inc. 8000 South Federal Way Boise, Idaho 83707 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email jswier@micron.com IDAHO POWER COMPANY’S RESPONSE TO THE SECOND PRODUCTION REQUEST OF VOTE SOLAR - 8 City of Boise Darrell G. Early Deputy City Attorney Boise City Attorney’s Office 150 N. Capitol Blvd. PO Box 500 Boise, Idaho 83701-0500 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email dearly@cityofboise.org boisecityattorney@cityofboise.org Wil Gehl Energy Program Manager Boise City Dept. of Public Works 150 N. Capitol Blvd. Boise, Idaho 83701-0500 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email wgehl@cityofboise.org Vote Solar Abigail R. Germaine Elam & Burke, PA 251 E. Front Street, Suite 300 PO Box 1539 Boise, ID 83701 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email arg@elamburke.com Kate Bowman Regulatory Director Vote Solar 299 S. Main Street, Suite 1300 PMB 93601 Salt Lake City, UT 84111 Hand Delivered U.S. Mail Overnight Mail FAX FTP Site X Email kbowman@votesolar.org Stacy Gust, Regulatory Administrative Assistant BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION CASE NO. IPC-E-23-14 IDAHO POWER COMPANY ATTACHMENT REQUEST NO. 20 SEE ATTACHED SPREADSHEET BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION CASE NO. IPC-E-23-14 IDAHO POWER COMPANY ATTACHMENT REQUEST NO. 21 SEE ATTACHED SPREADSHEET