Docket No:  ADV 1818 Docket Name:  AVISTA ADVICE NO. 25-12-G UM 779 COMPLIANCE Submit Public Comment Subject Company:  AVISTA UTILITIES     Avista's Advice No. 25-12-G. The purpose of the requested tariff modifications is to reflect the annual customer deposit interest rate of 3.5 percent for calendar year 2026. This filing includes a Less Than Statutory Notice (LSN). Filing Date:  12/2/2025 Advice No: 25-12-G       Effective:  1/1/2026 Expiration:   Status:  ALLOWED Case Manager:  MADISON BOLTON Phone:  503-508-0722 Email:   madison.bolton@puc.oregon.gov Email Service List (semi-colon delimited)      Email Service List (comma delimited)   If you experience problems with the above 'Email Service List' links, please try one of these: Service List Popup (semi-colon delimited)     Service List Popup (comma delimited) General information about Tariff Filings.

ACTIONS SERVICE LIST SCHEDULE Public Comments Sort By Date        Sort By Type Date: 12/30/2025 Action:  OTHER CORRESPONDENCE (ACKN, SVC, LTR)      Description Proof of service of letter 12/30/2025.  Date: 12/30/2025 Action:  ALLOWED (APPROVED) UTILITY FILING      Description Letter sent.   Date: 12/23/2025 Action:  STAFF REPORT      Description ADV 1817, ADV1818 - Staff Report for the December 30, 2025 Public Meeting (Item No. CA17), by Madison Bolton.  Date: 12/2/2025 Action:  INITIAL UTILITY FILING      Description Avista's Advice No. 25-12-G. The purpose of the requested tariff modifications is to reflect the annual customer deposit interest rate of 3.5 percent for calendar year 2026. This filing includes a Less Than Statutory Notice (LSN).