The URL can be used to link to this page

Home My WebLink About20251209Notice of Wildfire Mitigation Plan Filing.pdf RECEIVED Avista Corp. December 9, 2025 1411 East Mission P.O. Box 3727 IDAHO PUBLIC Spokane, Washington 99220-0500 UTILITIES COMMISSION Telephone 509-489-0500 Toll Free 800-727-9170 December 9, 2025 State of Idaho Idaho Public Utilities Commission 11331 W. Chinden Blvd Bldg 8 Suite 201-A Boise, ID 83714 RE: Case No. AVU-E-25-15 —Avista Corporation's 2026 Wildfire Mitigation Plan Dear Commission Secretary: Attached please find Avista Corporation's Notice of Wildfire Mitigation Plan Filing to be filed in the above case. Please direct any questions related to the transmittal of this filing to Liz Andrews at 509-495- 8601. Sincerely, lsl '544"'40dtr w Elizabeth Andrews Sr. Manager of Revenue Requirements liz.adrews(a,avistacorp.com Anni Glogovac, ISB #13010 Counsel for Regulatory Affairs Avista Corporation 1411 E. Mission Avenue P.O. Box 3727 Spokane, Washington 99220 Phone: (509) 495-7341 BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION IN THE MATTER OF AVISTA ) CORPORATION'S 2026 WILDFIRE ) CASE NO. AVU-E-25-15 MITIGATION PLAN ) NOTICE OF WILDFIRE MITIGATION PLAN FILING Avista Corporation ("Avista" or "Company"), pursuant to Order No. 367741 issued by the Idaho Public Utilities Commission ("Commission") on September 30, 2025, hereby notifies the Commission that it is providing notice of the Company's filing of its 2026 Wildfire Mitigation Plan ("WMP" or "Wildfire Plan") to the state forester, cities, counties, fire protection districts, Ere protection associations, and timber protection associations within the Company's Idaho service area as required by Idaho Code§ 61-1804(2). A copy of the Company's letter, including a list of entities to which the notice is being provided, is attached hereto as Attachment A. The Company is also including a copy of this Notice with its letter pursuant to Order No. 36774,which provides that"the notice to interested parties required under Idaho Code§ 61-1804(2) shall include a copy of the notice to the Commission of the filing of the WMP ... .i2 The Company notes that the ordering language in this regard differs from the language in Staff s recommendation, which stated that electric corporations should "provide a copy of the notice [to interested entities] 'In the Matter of Commission Staffs Application for Approval of a Filing Process for Wildfire Mitigation Plans,Case No. GNR-E-25-02,Order No.36774(Sep.30,2025). 2 Id. At 21. NOTICE OF WILDFIRE MITIGATION PLAN FILING Page 1 to the Commission in its filing."' While the Company believes the Commission intended to adopt Staff s recommendation regarding the notice to interested parties required under Idaho Code § 61- 1804(2), the language of the Order appears to contemplate an additional requirement of"notice to the Commission of the filing of the WMP," which should also be provided with the notice to interested entities, and this notice is being provided to satisfy that component. To the extent the Commission did not intend to deviate from Staffs recommendation, the Company respectfully requests the Commission issue an errata to Order No. 36774 aligning the ordering language related to notice under Idaho Code§ 61-1804(2)with Staff s recommendation. DATED this 9th day of December, 2025. ( Aw,owop� A ni Glogovac ISB #13010 3 Staff Comments at 15 (Aug.21,2025) NOTICE OF WILDFIRE MITIGATION PLAN FILING Page 2 BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION CASE NO.AVU-E-25-15 ATTACHMENT A COMPANY LETTER TO ENTITIES Avista Corp. 1411 East Mission P.O. Box 3727 Spokane, Washington 99220-0500 Telephone 509-489-0500 Toll Free 800-727-9170 [Insert Date] [Insert Recipient Name] [Insert Recipient Title] [Insert Recipient Company] [Insert Recipient Street Address] [Insert City, State Zip] RE: 2026 Avista Corporation Wildfire Mitigation Plan Dear [Insert Recipient Name]: Avista Corporation ("Avista") filed its 2026 Wildfire Mitigation Plan ("WMP") with the Idaho Public Utilities Commission ("IPUC") on December 09, 2025, in accordance with Idaho Code Title 61, Chapter 18 (Wildfire Standard of Care Act) and IPUC Order No. 36774. A copy of Avista Corporation's Notice of Wildfire Mitigation Plan Filing provided to the IPUC is attached to this letter. This is the fifth edition of Avista's WMP since 2020. The purpose of Avista's WMP is to guide wildfire mitigation strategies and reduce wildfire risk. Avista is focused on the safety of its customers and communities and safely delivering reliable, affordable energy. Avista's 2026 WMP is built around the following key components: • Situational Awareness o Geographic risk assessment o Weather stations o Fire detection equipment o Hourly fire risk modeling • Grid Hardening o Distribution and transmission construction strategies to prevent spark ignitions o Sectionalization of circuits to isolate risk o Improved communication to isolation devices • Enhanced Vegetation Management o Annual inspection and hazard mitigation to address vegetation risk o Fuel reduction partnerships [Insert Recipient's Name] [Insert Date] • Operations and emergency response o Use of protection settings including Public Safety Power Shutoff(PSPS) during critical fire weather o Communication plans o Customer support programs o Education and outreach How to Participate: Avista's 2026 WMP is available for public review and has been presented for IPUC approval. Copies of the filing are available for public inspection during regular business hours at the IPUC's office located at 11331 W. Chinden Blvd. Building 8, Suite 201-A, Boise, ID 83714, or the IPUC's website at www.puc.idaho.gov. Click on the "ELECTRIC" icon, select "Open Cases," and click on Case No. AVU-E-25-15. Interested parties may also subscribe to the IPUC's RSS feed to receive periodic updates about the case via email. Written comments regarding Avista's WMP filing can be filed with the IPUC; comments are required to be filed through the IPUC's website or by e-mail unless computer access is not available. To comment electronically, visit puc.idaho.gov and click on the "Case Comment Form" link on the upper left side of the page. Please use case number AVU-E-25-15 when filling out the form. To comment using e-mail, please send comments to the e-mail addresses listed below and include case number AVU-E-25- 15. Commenters are required to include their name and address. If computer access is not available, comments can be mailed to the IPUC Secretary and to Avista Corporation at the addresses listed below. Commenters are required to include case number AVU-E-25-15, as well as their name and address. For the Idaho Public Utilities Commission: Commission Secretary Idaho Public Utilities Commission P.O. Box 83720 Boise, ID 83720- 0074 secretarykpuc.idaho.gov Street address for express mail: 11331 W. Chinden Blvd. Building 8, Suite 201-A Boise, ID 83714 For Avista Corporation: Anni Glogovac Elizabeth Andrews Counsel for Regulatory Affairs Sr. Manager of Revenue Requirements P.O. Box 3727 P.O. Box 3727 1411 E. Mission Avenue, MSC 13 1411 E. Mission Avenue, MSC 27 Spokane, Washington 99220-3727 Spokane, Washington 99220-3727 Telephone: (509) 495-7341 Telephone: (509) 495-8601 E-mail: anni.g_loizovac(2avistacorp.com E-mail: liz.andrews(2avistacor2.com 2 1 P a g e [Insert Recipient's Name] [Insert Date] cc: Idaho Department of Lands, State Forester City Of Pinehurst, City Clerk City Of Winchester, City Clerk City Of Ferdinand, City Clerk City Of Ponderay, City Clerk City Of Huetter, City Clerk City Of State Line, City Clerk City Of Oldtown, City Clerk City Of Worley, City Clerk City Of Elk River, City Clerk City Of Onaway, City Clerk City Of Deary, City Clerk City Of Smelterville, City Clerk City Of Kellogg, City Clerk City Of Bonners Ferry, City Clerk City Of Priest River, City Clerk City Of St Maries, City Clerk City Of Troy, City Clerk City Of Potlatch, City Clerk City Of Mullan, City Clerk City Of Wallace, City Clerk City Of Kooskia, City Clerk City Of Clark Fork, City Clerk City Of Athol, City Clerk City Of Juliaetta, City Clerk City Of Grangeville, City Clerk City Of Dover, City Clerk City Of Kootenai, City Clerk City Of Hayden Lake, City Clerk City Of Orofino, City Clerk City Of Coeur d Alene City Clerk City Of Reubens, City Clerk City Of Osburn, City Clerk City Of Post Falls, City Clerk City Of Hauser Lake, City Clerk City Of Tensed, City Clerk City Of Pierce, City Clerk City Of Nez Perce, City Clerk City Of Rathdrum, City Clerk City Of Bovill, City Clerk City Of Genesee, City Clerk City Of Kendrick, City Clerk City Of Culdesac, City Clerk City Of Lewiston, City Clerk 3 Page [Insert Recipient's Name] [Insert Date] City Of Shoshone, City Clerk City Of Wardner, City Clerk City Of Moyie Springs, City Clerk City Of Craigmont, City Clerk City Of Kamiah, City Clerk City Of Cottonwood, City Clerk City Of Stites, City Clerk City Of Sandpoint, City Clerk City Of Hope, City Clerk City Of East Hope, City Clerk City Of Kootenai, City Clerk City Of Spirit Lake, City Clerk City Of Harrison, City Clerk City Of Hayden, City Clerk City Of Fernan, City Clerk City Of Dalton Gardens, City Clerk City Of Moscow, City Clerk City Of Lapwai, City Clerk Counties County of Benewah, County Clerk County of Bonnor, County Clerk County of Boundary, County Clerk County of Clearwater, County Clerk County of Idaho, County Clerk County of Kootenai, County Clerk County of Latah, County Clerk County of Lewis, County Clerk County of Nez Perce, County Clerk County of Shoshone, County Clerk Fire Department or Protection District Arrow Junction Fire Protection District, Fire Chief Big Canyon Fire District, Fire Chief Bonners Ferry Fire Department, Fire Chief Bovill Fire Protection District, Fire Chief BPC Rural Fire Department, Fire Chief Carrot Ridge Volunteer Fire District, Fire Chief Clark Fork Fire &Rescue, Fire Chief Coeur d'Alene Fire Department, Fire Chief 4 Page [Insert Recipient's Name] [Insert Date] Coolin-Cavanaugh Bay Fire Protection District, Fire Chief Cottonwood Volunteer Fire Department /Cottonwood Rural Fire District Fire Chief Craigmont Volunteer Fire Department, Fire Chief Culdesac Volunteer Fire Department, Fire Chief Curley Creek Volunteer Fire Department, Fire Chief Deary Rural Fire District, Fire Chief East Side Fire Protection District, Fire Chief East Priest Lake Fire District, Fire Chief Elk City Volunteer Fire Department, Fire Chief Elk River Volunteer Fire Department, Fire Chief Emida Fire Protection District, Fire Chief Evergreen Rural Fire District, Fire Chief Ferdinand Fire Department, Fire Chief Fernwood Fire Protection District, Fire Chief Gateway Fire Protection District, Fire Chief Genesee City Fire Department/ Rural Fire Protection District, Fire Chief Glenwood/Caribel Volunteer Fire District, Fire Chief Grangemont Rural Fire District, Fire Chief Grangeville City/Rural Fire Department, Fire Chief Greer Fire District, Fire Chief Hall Mountain Volunteer Fire Department, Fire Chief Harpster Fire Protection District, Fire Chief Hauser Lake Fire Protection District, Fire Chief Juliaetta Volunteer Fire Department, Fire Chief Kamiah Fire Protection District, Fire Chief Kendrick Volunteer Fire Department, Fire Chief Kilroy Bay-Pine Cove Fire Department, Fire Chief Kooskia Fire Department, Fire Chief Kootenai County Fire &Rescue, Fire Chief Lapwai Fire Department, Fire Chief Lewiston Fire Department, Fire Chief Mica-Kidd Island Fire Protection District, Fire Chief Moscow Volunteer Fire Department/Rural Fire District, Fire Chief Moyie Springs Fire Department, Fire Chief Mullan Volunteer Fire Department, Fire Chief Nez Perce County Fire Department, Fire Chief Nezperce City/Rural Fire Department, Fire Chief North Bench Fire District, Fire Chief North of the Narrows Fire District, Fire Chief 5 Page [Insert Recipient's Name] [Insert Date] Northern Lakes Fire Protection District, Fire Chief Northside Fire District, Fire Chief Orofino Fire Department, Fire Chief Paradise Valley Fire District, Fire Chief Pierce Volunteer Fire Department, Fire Chief Potlatch Rural Fire District, Fire Chief Prichard/Murray Volunteer Fire Department, Fire Chief Ridge Runner Fire Department, Fire Chief Riggins City Fire Department, Fire Chief Salmon River Rural Fire Department, Fire Chief Sam Owen Fire District, Fire Chief Schweitzer Fire District, Fire Chief Secesh Meadow Rural Fire Department, Fire Chief Selkirk Fire, Rescue & EMS, Fire Chief Shoshone County Fire Protection District 1, Fire Chief Shoshone County Fire Protection District 2, Fire Chief Shoshone County Fire Protection District 3, Fire Chief South Boundary Fire Protection District, Fire Chief Spirit Lake Fire Protection District, Fire Chief St. Joes Valley Fire District#4, Fire Chief St. Maries Fire Protection District, Fire Chief Stites Fire Department, Fire Chief Sunnyside Rural Fire District, Fire Chief Tensed Rural Fire District, Fire Chief Timberlake Fire Protection District, Fire Chief Troy Volunteer Fire Department/Rural Fire District, Fire Chief Twin Ridge Rural Fire District, Fire Chief Upper Fords Creek Rural Fire District, Fire Chief Upper Pack River Volunteer Fire District, Fire Chief Weippe Fire Department, Fire Chief West Pend Oreille Fire District, Fire Chief West Priest Lake Fire District, Fire Chief Wheatland Fire Protection District, Fire Chief White Bird Fire Department, Fire Chief Winchester Rural Fire District, Fire Chief Winchester Volunteer Fire, Fire Chief Worley Fire Protection District, Fire Chief 6 Page