Due to public health concerns related to the spread of the novel corona virus (COVID-19), the Energy Facility Site Evaluation Council office (EFSEC) is closed to the public as of March 16, 2020. All EFSEC staff are telecommuting until further notice and EFSEC operations will continue remotely. You may reach EFSEC by phone (360) 664-1345 or by email efsec@efsec.wa.gov during regular business hours, 8 am – 5 pm, Monday through Friday. EFSEC Council meetings will be held by teleconference until further notice. Please check this site regularly for updates.

Changes are coming to EFSEC

Effective June 30, 2022 EFSEC has become an independent state agency through the passage of E2SHB 1812 by the 2022 Washington State Legislature. There will be several changes to internal structure and operations, most notably EFSEC no longer depends on the Utilities and Transportation Commission (UTC) for administrative and staff support services. Click here to learn more information.

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Home » Energy Facilities

Energy Facilities

Projects Under EFSEC Jurisdiction

Under Review:

Horse Heaven Wind Project (Wind)

Badger Mountain (Solar)

High Top and Ostrea (Solar)

Wautoma (Solar)

Licensed and Permitted:

Currently Operating:

Columbia Generating Station (Nuclear) 

Chehalis Generation Facility (Natural Gas) 

Wild Horse Wind Power Project (Wind) 

Grays Harbor Energy Center (Natural Gas) 

Kittitas Valley Wind Power Project (Wind) 

Under construction:

Columbia Solar TUUSSO (Solar) 

Permitted but construction not started:

Goose Prairie Solar Project (Solar)

Whistling Ridge Energy Project (Wind)

Desert Claim Wind Power Project (Wind)

Once Permitted but canceled by proponent

Sumas Energy 2 Generation Facility (Natural Gas)

Wallula Power Project (Natural Gas)

BP Cherry Point Cogeneration (Natural Gas)

Cancelled by proponent before Operating Permit Issued:

Pacific Mountain Energy Facility (IGCC)

Projects rejected by Governor:

Otherwise Discontinued:

WNP 1/4