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.

State of Washington Energy Facility Site Evaluation Council

The State of Washington Energy Facility Site Evaluation Council (EFSEC or Council) provides a "one-stop" siting process for major energy facilities in the State of Washington. EFSEC coordinates all evaluation and licensing steps for siting certain energy facilities in Washington. EFSEC specifies the conditions of construction and operation. If approved, a Site Certification Agreement is issued in lieu of any other individual state or local agency permits. EFSEC also manages an environmental and safety oversight program of facility and site operations.


621 Woodland Square Loop SE
PO Box 43172
Olympia, WA 98504-3172

Visiting & parking instructions 
(Parking pass required)

Phone: 360-664-1345
Email: efsec@efsec.wa.gov

Business Hours: 8:00 AM to 5:00 PM
Monday - Friday except Holidays

EFSEC Project Location Map

Department of Defense Consultation

Local governments are required to report to the Department of Defense when an energy facility application is received -  RCW 36.01.320 

Energy developers and reviewers are advised to consult with the DOD early in the development stage of a project to identify and avoid risks associated with military operations and safety.

Air Force Western Regional Environmental Office (AFCEE/RO-W)
50 Fremont Street, Room 2450
San Francisco, CA 94105-2236
Phone (415) 977-8884
Fax (415) 977-8900

Kimberly Peacher
Northwest Training Range Complex (NWTRC)

8730 N. Charles Porter Ave.
Oak Harbor, WA 98278-5000
Phone (360) 930-4085
Fax (360) 257-1852

Visit www.acq.osd.mil/dodsc/ to opt into a review process under the DOD Siting Clearinghouse.