Procedural History
Tariff Revision Jan. 16, 2026: Avista Corporation d/b/a Avista Utilities filed with the Washington Utilities and Transportation Commission proposed revisions to currently effective electric service tariff, Tariff WN U-28, and in Docket UG-260008 to its currently effective natural gas service tariff, Tariff WN U-29.
Order 01 Complaint and Order Suspending Tariff Revisions; Order of Consolidation Feb. 2, 2026: The commission issued Order 01 Complaint and Order Suspending Tariff Revisions; Order of Consolidation, which among other things, consolidated Dockets UE-260007 and UG-260008, suspended the tariff revisions, and set the consolidated docket for adjudication.
Notice of Virtual Prehearing Conference Feb. 2, 2026: The commission issued a Notice of Virtual Prehearing Conference.
Order 02 Protective Order Feb. 13, 2026: The commission issued Order 02 Protective Order, which set out the rules governing disclosure of information designated as confidential in this docket.
Order 03 Prehearing Conference Order; Notice of Hearing March 2, 2026: The commission issued Order 03 Prehearing Conference Order; Notice of Hearing, which among other things, established a procedural schedule for this proceeding as well as a hybrid evidentiary hearing for September 17-18, 2026, at 9 a.m. Parties may attend the hearing in person at the Commission’s headquarters or virtually via Zoom. To attend the hearing via Zoom, click here to join meeting, or call (253) 215-8782 and enter the Conference ID: 811 9386 9284# and use the Passcode: 458488#.
Notice of Virtual Technical Workshop March 5, 2026: The commission issued a Notice of Virtual Technical Workshop set or Friday, March 13, 2026, at 10 a.m. The workshop is intended to review the structure and functionality of the utility’s revenue requirement model and subsequently how that model interacts with the cost-of -service exhibit(s). Attendees must have executed a Confidential Non-disclosure Agreement, as required by Order 02 Protective Order in this docket. To obtain a link for the workshop, please contact Stacey Brewster at stacey.brewster@utc.wa.gov.