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Home My WebLink About20210715IPC to Staff 27-28.pdfntD{oNpyygl- An IDACORP Company . -.; -:li:- i5 PH 3: l 0 DONOVAN E. WALKER Lead Counse! dwalker@idahopower.com July 15,2021 VIA ELECTRONIC MAIL Jan Noriyuki, Secretary ldaho Public Utilities Commission 11331 West Chinden Blvd., Building 8 Suite 201-A Boise, Idaho 83714 Case No. IPC-E-21-09 ldaho Power Company'sApplication for Capacity Deficiency To Be Utilized For Avoided Cost Galculations Dear Ms. Noriyuki: Attached for electronic filing is ldaho Power Company's Response to the Fifth Production Requests of the Commission Staff and Supplemental Response to Production Request of the Commission Staff in the above entitled matter. lf you have any questions about the attached documents, please do not hesitate to contact me. Very truly yours, -'-_ a r' -r l-."t i]I'l Re 2datL Donovan E. Walker DEW:cld Enclosures DONOVAN E. WALKER (lSB No. 5921) ldaho Power Company 1221West ldaho Street (83702) P.O. Box 70 Boise, ldaho 83707 Telephone: (208) 388-5317 Facsimile: (208) 388-6936 dwalker@ idahopower.com Attorney for ldaho Power Company BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION IN THE MATTER OF IDAHO POWER COMPANY'S APPLICATION FOR APPROVAL OF THE CAPACITY DEFICIENCY TO BE UTILIZED FOR AVOI DED COST CALCUIATIONS. CASE NO. IPC-E-21-09 IDAHO POWER COMPANY'S RESPONSE TO THE FIFTH PRODUCTION REQUEST OF THE COMMISSION STAFF AND SUPPLEMENTAL RESPONSE TO PRODUCTION REQUEST OF THE COMMISSION STAFF COMES NOW, Idaho Power Company ("ldaho Powe/' or "Compooy"), and in response to the Fifth Production Request of the Commission Staff to ldaho Power Company dated July 12,2021, herewith submits the following information: IDAHO POWER COMPANY'S RESPONSE TO THE FIFTH PRODUCTION REQUESTS OF THE COMMISSION STAFF AND SUPPLEMENTAL RESPONSE TO PRODUCTION REQUEST OF THE COMMISSION STAFF- 1 ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) REQUEST NO. 27: Please confirm that the transmission capacity Excel file provided in Response to Production Request No. 9, which shows how Market Purchases are calculated in the Load and Resource Balance, assumes Valmy Unit 2 retires in2022, instead of 2025. lf so, please submit an updated Excel file that calculate Market Purchases to reflect a 2025 retirement date of Valmy Unit 2. RESPONSE TO REQUEST NO. 27: The Excel file provided in response to Staff Request No. I does assume a Valmy Unit 2 exit in 2022. Please see the attached Excel file for a calculation of Market Purchases to reflect a 2025 exit date of Valmy Unit 2. Row 64 of the sheet was modified for summer months 2023-2025 to reflect Valmy Unit 2 being online, therefore making 131 MW of transmission capacity unavailable for those months. The response to this Request is sponsored by Jared Hansen, Resource Planning Leader, ldaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THE FIFTH PRODUCTION REQUESTS OF THE COMMISSION STAFF AND SUPPLEMENTAL RESPONSE TO PRODUCTION REQUEST OF THE COMMISSION STAFF- 2 REQUEST NO. 28: Response to Staffs Production Request No. 26 states, "Recently, the Company determined that firm transmission is not available from southern market hubs to North Valmy through the NV Energy system" and "[a]dditional firm south- to-north transmission is also not available on the PacifiCorp East transmission path through Utah to ldaho." Please answer the following questions: a. What timeframe and contract length of firm transmission did the Company seek to obtain that is not available from southern market hubs to North Valmy through the NV Energy system? How much capacity did the Company request? Please provide evidence. b. \Mat timeframe and contract length of firm transmission did the Company seek to obtain that is not available from south-to-north transmission on the PacifiCorp East transmission path through Utah to ldaho. How much capacity did the Company request? Please provide evidence. c. Please explain and provide evidence to show whether or not transmission from the south transmission pathways will be available in the future. RESPONSE TO REQUEST NO. 28: a. ldaho Power issued a request for proposal (RFP) on April 26,2021, for the delivery to ldaho Power of firm capacity and energy during the summer months through 2025 to test the market and transmission availability of a replacement resource forValmy Unit 2. ldaho Power received no bids. No firm transmission is posted as available on the Open Access Same-Time lnformation System (OASIS) from the southwest markets across NV Energy (NEVP) to ldaho Power, or from the southwest markets across PacifiCorp (PPW) to ldaho IDAHO POWER COMPANY'S RESPONSE TO THE FIFTH PRODUCTION REQUESTS OF THE COMMISSION STAFF AND SUPPLEMENTAL RESPONSE TO PRODUCTION REQUEST OF THE COMMISSION STAFF- 3 Power. The attached Excel file contains screenshots of the relevant OASIS information for each. ldaho Power will continue to evaluate transmission availability from southern market hubs in future lRPs by monitoring firm transmission availability on the OASIS. b. Please see response to subpart a., above. c. Please see response to subpart a., above. The response to this Request is sponsored by Jared Hansen, Resource Planning Leader, Idaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THE FIFTH PRODUCTION REQUESTS OF THE COMMISSION STAFF AND SUPPLEMENTAL RESPONSE TO PRODUCTION REQUEST OF THE COMM!SSION STAFF-4 REQUEST NO. 24: Response to Staffs Request No. 16 contains the proposed load forecast in the L&R in an annual format. Response to Staffs Request No. 11 contains the latest forecast in an annual format. Comparing the two forecasts, the table below shows the latest load forecast is greater than the proposed load forecast in the Application. However, Response to Staffs Request No. 16 states that the first deficit date will change to July 2029 if all variables are held constant except for using the latest load. Please explain why the updated first deficit date is Iater than the originally proposed first deficit date of August 2028, when the new load is greater. Please veriff that the forecast used to determine the July 2029 deficit date in response to Production Request No. 16 uses the latest load forecast using 50th percentile loads. italbdlail lllbalGrr lltra SUPPLEMENTAL RESPONSE TO REQUEST NO. 24: The updated load forecast submitted in response to Staff Request No. 11 was 90th percentile peak loads. For load and resource balance calculations to determine the first deficit date, ldaho Power utilizes 50th percentile peak loads. The updated 50th percentile load forecast is slightly lowerthan the 2019 !RP forecast used in the Company's Application in this case, resulting in a later (July 2029) deficit date. The response to this Request is sponsored by Jared Hansen, Resource Planning Leader, ldaho Power Company. IDAHO POWER COMPANY'S RESPONSE TO THE FIFTH PRODUCTION REQUESTS OF THE COMMISSION STAFF AND SUPPLEMENTAL RESPONSE TO PRODUCTION REQUEST OF THE COMMISSION STAFF- 5 mId3atrDatt!atu!!llrr|sffi p #17 w Il0 x6 Ft rB # $2 {Et {ts {t rE ril {$ ril ril ffi m a0 I fil tr,l &r G Nt r$ {ut 118 ail (lt r$ {ot r6t 6ltu lI r0 rs lI s rar E, 81 rB rE rs 1r2 lll llt u3 rB tB Respectfully submitted this 1Sth day of July 2021. fuzdatt<- DONOVAN E. WALKER Attorney for ldaho Power Company IDAHO POWER COMPANY'S RESPONSE TO THE FIFTH PRODUCTION REQUESTS OF THE COMMISSION STAFF AND SUPPLEMENTAL RESPONSE TO PRODUCTION REQUEST OF THE COMMISSION STAFF-6 CERTIFICATE OF SERVICE I HEREBY CERTIFY that on this 1Sth day of June 2021 ,l served a true and correct copy of the within and foregoing IDAHO POWER COMPANY'S RESPONSE TO THE FIFTH PRODUCTION REQUESTS OF THE COMMISSION STAFF AND SUPPLEMENTAL RESPONSE TO PRODUCTION REQUEST OF THE COMMISSION STAFF upon the following named parties by the method indicated below, and addressed to the following: Matt Hunter Deputy Attorney General ldaho Public Utilities Commission Po Box 83720 Boise, ldaho 83720-0074 Peter J. Richardson ISB # 3195 Gregory M. Adams ISB # 7454 RICHARDSON ADAMS, PLLC 515 N.27th Street Boise, ldaho 83702 Hand Delivered U.S. Mail Overnight Mail FAX x Email: matt. hunter@puc. idaho.qov Hand Delivered U.S. Mail Overnight Mail _ FAXX Emai!: peter@ richa rdsonadams. com q req@ richardsonadams. com Christy Davenport, Legal Assistant IDAHO POWER COMPANY'S RESPONSE TO THE FIFTH PRODUCTION REQUESTS OF THE COMMISSION STAFF AND SUPPLEMENTAL RESPONSE TO PRODUCTION REQUEST OF THE COMMISSION STAFF. T