Utility Partners

Partner utilities represent Washington and Oregon’s diverse regulatory and market environment, serving over 80% of the two-state population. Partner utilities meet regularly to discuss interconnection processes and share best practices for efficient solar customer service. If your utility is not listed here, please consider joining Northwest Solar Communities by contacting rooftop@commerce.wa.gov.


With a service territory spanning much of Eastern Washington, Avista serves more than 600,000 electric and natural gas customers. In recent years, more than 150 customers have installed solar systems.

Ellensburg Electric Services

The city’s electric utility serves approximately 9,200 customers including Central Washington University. Ellensburg’s Community Solar program has inspired utilities across the nation.


Eugene Water and Electric Board uses revenues from the utility’s Greenpower program to fund incentives for local solar installations – supporting both clean energy and local jobs.

Pacific Power

Pacific Power is a leader in solar deployment, with nearly 3,500 net metered customers across Washington and Oregon, totaling approximately 27 megawatts of installed capacity. The utility’s experience serving both states will be instrumental in bringing them into alignment.

Portland General Electric

Portland General Electric consistently leads the nation in engaging customers in Green Power options. The utility serves over 800,000 customers located throughout seven Oregon counties.

Puget Sound Energy

Washington’s largest utility, PSE serves over 4 million customers and has over 1,500 net metered customers. As a regulated utility, they set the bar for easy interconnection with their EZ form which will be submitted to the Washington UTC for approval in 2013.

Seattle City Light

Seattle City Light serves over 780,000 residents in the City of Seattle and surrounding jurisdictions. They offer customers a range of options for going solar, including Community Solar projects and Solarize group purchase campaigns.

Snohomish Public Utility District

Snohomish PUD serves over 320,000 residents and offers the highly popular Solar Express program, providing loans and rebates for customers who choose to go solar.