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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.


1300 S. Evergreen Park Dr. S.W.
PO Box 47250
Olympia, WA 98504-7250

Phone: 360-664-1345


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

Map and Directions

Staff Contact Information

Job Opportunities:

Position: Siting Specialist



State Implementation Plan

U.S. Environmental Protection Agency Approves EFSEC State Implementation Plan (SIP)

Department of Defense

Local governments to report energy facility applications to Department of Defense

  • Air Force Western Regional Environmental Office (AFCEE/RO-W)
    50 Fremont Street, Room 2450
    San Fransisco, CA 94105-2236
    Phone (415)977-8884
    Fax (415)9778900

  • 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

Projects Under Review:

Tuusso Columbia Solar Project


Chehalis Generation Facility Natural Gas

Columbia Generating Station Nuclear

Desert Claim Wind

Grays Harbor Energy Center Natural Gas

Kittitas Valley Wind

Whistling Ridge Wind

Wild Horse Wind

WNP-1 /4 Nuclear

Declaratory Order:

Northwest Innovation Works, Kalama, Methanol Facility
Public Notice
Public Notice
Order dismissing petition for declaratory order


Small Modular Reactors (SMRs)

**Project updates can be found by clicking on the link provided for each project above**

Third Party Carbon Dioxide Mitigation

Independent Qualified Organization List


A listing of important dates - EFSEC meetings, public comment submittal due dates, filing dates for project adjudicative proceedings, or other dates of significance.

Administrative Orders & Resolutions


Expired, Terminated, or Canceled Energy Projects

Other Projects


Review of Pipeline Utility Corridor Capacity and Distribution for Petroleum Fuels, Natural Gas and Biofuels in Southwest Washington - November 2007 Older studies

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