Washington UTC Approves PSE Clean Energy Plan Deploying 1,500 MW of Wind and Battery Storage

OLYMPIA, WA — The Washington Utilities and Transportation Commission (UTC) issued a final regulatory order approving Puget Sound Energy’s (PSE) 2026–2029 Clean Energy Implementation Plan (CEIP), executing the statutory decarbonization targets of the Clean Energy Transformation Act (CETA).

Accelerating Coal Retirement and Deploying Regional Clean Power

The approved plan authorizes PSE to procure and construct 1,500 megawatts of new clean resources—including 800 MW of utility-scale wind in Eastern Washington, 400 MW of grid-scale four-hour battery energy storage, and 300 MW of community distributed solar. The plan permanently eliminates all coal-fired electricity from PSE’s supply portfolio by December 31, 2026, while dedicating $100 million in customer bill assistance to prevent low-income rate impacts.

UTC commissioners affirmed that Washington’s transition to 100% clean electricity must ensure grid reliability while keeping rates equitable for all residential consumers.

Clean Energy Coalitions and Labor Trade Unions Endorse

Renewable Northwest and environmental justice groups praised the inclusion of distributed solar equity programs in disadvantaged communities.

IBEW Local 77 secured project labor agreements ensuring prevailing union wages for all wind and battery storage installations.

Procurement Issuance Schedule

PSE will issue competitive clean energy requests for proposals (RFPs) in October 2026.