Updated: March 2026
Commercial rate guide for Avista — Eastern Washington (Spokane area), northern Idaho (Coeur d'Alene, Moscow), and parts of southern and eastern Oregon. Provides both electric and natural gas service.
Schedule 11 (general service) and Schedule 25 (large general service) for electric. Gas rates under Schedule 101 (general service) and Schedule 111 (large volume). Demand charges above 50 kW for electric.
Rising
5.9% electric increase and 4.7% gas increase effective January 2026 in Washingto
5.9% electric increase and 4.7% gas increase effective January 2026 in Washington; 6.2% electric increase in Idaho effective March 2026
Property managers with Avista accounts frequently encounter these billing challenges:
Multi-state rate differences for cross-border portfolios
Gas and electric combined billing complexity
Winter demand peaks from electric and gas heating loads
Hydroelectric generation variability affecting power cost adjustments
Rural meter access challenges in mountainous territories
The utility is the sole provider in this service territory.
Washington and Idaho are regulated electric and gas markets. Avista is a vertically integrated utility regulated by WUTC and ID PUC. No competitive supply choice available.
Multi-year rate plan filing in Washington under WUTC review; gas infrastructure modernization surcharge petition pending in Idaho
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