Avista Corporation has filed a multi-year rate plan with the Washington Utilities and Transportation Commission, requesting base rate increases over four years beginning in 2027. The proposed plan seeks additional base revenues of $111 million for electric service and $12 million for natural gas service in the first year, representing increases of 13.9% and 4.7% respectively. Subsequent years would see smaller increases, with electric revenue requirements rising by $43 million (4.7%) in 2028, $34 million (3.5%) in 2029, and $28 million (2.8%) in 2030. Natural gas revenue requirements would rise by $7 million (2.4%) in 2028, $6 million (2.1%) in 2029, and $3 million (1.1%) in 2030. The company is requesting an overall rate of return of 7.5% in 2027 and 7.67% in 2029, with returns on equity of 10.2% and 10.5% respectively. Key drivers for the first-year increase include higher electric resource costs, capital additions, employee benefits, insurance, regulatory amortizations, and wildfire expenses.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Avista Corporation published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001193125-26-015443), on January 16, 2026, and is solely responsible for the information contained therein.