Avista files 4-year rate plan with Washington regulator seeking $111M electric, $12M gas hike in 2027

AVISTA CORP

Requests $111M electric (+13.9%) and $12M natural gas (+4.7%) base revenue increase for 2027.
Proposes overall rate of return 7.5%, 48.5% common equity, 10.2% ROE in 2027; rising to 7.67% and 10.5% ROE in 2029.
Key 2027 cost drivers: $46M electric resource costs, $29M capital additions, $7M employee benefits, $4M wildfire costs.
Seeks changes to baseline power supply cost calculation and new deferral mechanism for employee benefits costs.
WUTC has up to 11 months to review and issue a decision on the rate plan.

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