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@utc.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.

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Mailing Lists

General EFSEC information:

Transmission Corridors Work Group:

Project mailing Lists:

Chehalis Generation Facility:

Columbia Generating Station:

Columbia Solar:

Desert Claim Wind Power Project:

Grays Harbor Energy Center:

Goose Prairie Solar:

Hightop & Ostrea Solar Project

Horse Heaven Hills Wind Farm:

Kittitas Valley Wind Project:

Wautoma Solar Project

Whistling Ridge Wind Facility:

Wild Horse Wind Facility:

WNP 1 and 4:

Rulemaking: