Energy Efficiency Resource Standard (Washington)

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Last modified on February 12, 2015.

Rules Regulations Policies Program

Place Washington

Name Energy Efficiency Resource Standard
Incentive Type Energy Efficiency Resource Standard
Applicable Sector Investor-Owned Utility, Municipal Utility, Rural Electric Cooperative
Eligible Technologies Custom/Others pending approval
Active Incentive Yes

Implementing Sector State/Territory
Energy Category Energy Efficiency Incentive Programs

Electric Peak Demand Reduction Varies
Electric Sales Reduction Varies

Date added to DSIRE 2011-03-09
Last DSIRE Review 2013-02-04

References DSIRE[1]


Washington voters passed Initiative 937 in 2006, creating a renewable energy standard and an energy efficiency resource standard for the state's electric utilities. Initiative 937 calls for electric utilities that serve more than 25,000 customers in the state of Washington to undertake all cost-effective energy conservation. Investor-owned utilities, municipal utilities, rural electric cooperatives and public utility districts which meet the customer total requirements are subject to this standard. Of Washington's 62 utilities, 17 are considered qualifying utilities, representing about 84% of Washington's load.

The law specifically requires the affected utilities to identify achievable cost-effective conservation potential for the next 10 years by January 1, 2010, and every two years thereafter. In determining target levels of efficiency, a utility's projections must be consistent with its proportionate share of the most recent Northwest Power and Conservation Council (NWPCC) power plan. Utilities may alternatively base their efficiency targets on their most recent integrated resource plan, provided the plan is consistent with the NWPCC's power plan. Utilities must also develop projections of achievable cost-effective conservation potential for the immediate two-year period.

Incentive Contact

Contact Name Meg O'Leary
Department Washington State Department of Commerce
Division State Energy Office
Address 1011 Plum St SE
Address 2 PO Box 42525
Place Olympia, Washington
Zip/Postal Code 98504-2525
Phone (360)725-3118

Fax (360)586-8440
Contact Name Steve Johnson
Department Washington Utilities and Transportation Commission

Address 1300 South Evergreen Park Drive, S.W.
Address 2 P.O. Box 47250
Place Olympia, Washington
Zip/Postal Code 98504-7250
Phone (360) 664-1346


Authorities (Please contact the if there are any file problems.)

Authority 1: RCW 19.285 - Energy Independence Act

Date Enacted 2006-11-07

Authority 2: WAC 480-109

  • Incentive and policy data are reviewed and approved by the N.C. Solar Center's DSIRE project staff.[1]


  1. 1.0 1.1  "Database of State Incentives for Renewables and Efficiency (DSIRE)"