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Combined Heat and Power Partnership

Washington Renewable Energy Standard

Date Last Updated8/15/2014
Policy TypePortfolio Standard
Policy Administrator/Contact OfficeWashington State Department of Commerce
Policy Initiation Date11/7/2006
Policy SummaryWashington's Renewable Energy Standard (RES) requires that all types of electric utilities that serve more than 25,000 customers in the state generate 15% of their electric load from new renewables by the year 2020 and to undertake all cost-effective ener
CHP Eligibility RequirementsRenewably-fueled CHP systems are eligible under the RPS. Fossil-fueled CHP systems are eligible as a conservation measure. CHP facilities must have come online on or after March 31, 1999.
Eligible Project Size (MW)All sizes of CHP seeking credit under conservation targets are eligible. Renewably-fueled CHP must be <5 MW.
Minimum Efficiency Required/
Other Performance Requirements
High-efficiency CHP units must have a useful thermal output >33%. The regulations define "high-efficiency cogeneration" as "a cogeneration facility with a useful thermal output of no less than 33% of the total energy output, under normal operating conditi
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