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Renewable Energy System Incentive Program

A new incentive program for citizens and businesses of Washington passed the Washington State Legislature and was signed into law by the Governor in July 2017. Engrossed Substitute Senate Bill 5939 modifies tax incentives for renewable energy systems and provides guidance for recycling related components. The WSU Energy Program began administering the new incentive program on October 1, 2017.

Participating Utilities

Emergency rule

After consulting with our legal staff, we have determined that the best way to administer this program is to establish rules through the Washington Administrative Code process. The Emergency Rule is now available. A formal rulemaking process will follow soon thereafter. We do not believe that this rulemaking will materially delay application processing.

Online application system will be available soon

We are currently customizing and testing an online system that applicants will use to:
  • Create and submit a new incentive application,
  • Reapply for certification of legacy systems, and
  • Check the status of their application as the review process gets underway.

We will announce the availability of the online system on our website. If you would like us to contact you when the online system is available, please follow this link to provide your contact information.

Will I get preferential access to the online system if I provide my contact information through the link?
No. WSU provides this opportunity as a courtesy so you will be notified when the online system is ready for use. We will also post the availability of the online system on our website.

Will the launch date of the online system affect my incentive accrual?
No. Incentive payouts will be made in accordance with the legislation.

Contact Us

We appreciate the feedback we have received during this transition period, and we look forward to continuing this collaboration to ensure the success of this program.

If you have any comments or questions, you are invited to contact us at or 360-956-2200.

Updates from Department of Revenue – September 18, 2017