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Washington Solar

Data Current Through:
Q3 2018
Solar Installed (MW):
National Ranking:
32nd (35th in 2017)
State Homes Powered by Solar:
Percentage of State's Electricity from Solar:
Solar Jobs:
Solar Companies in State:
168 (38 Manufacturers, 64 Installers/Developers, 66 Others)
Total Solar Investment in State
$468.21 Million
Prices have fallen
43% over the last 5 years
Growth Projection and Ranking:
339 MW over the next 5 years (ranks 32nd)
Number Of Installations



View more solar industry data

Notable Solar Installations in Washington

  • Washington is a growing community solar market with more than 30 community solar projects already in the state. In 2018, A&R Solar installed two of the largest such projects, Benton County PUD at 75 kW and Clark County PUD at a combined 319 kW across its five arrays.
  • There are more than 70 schools across the state of Washington that have already gone solar. These schools have a combine capacity of 1.04 MW, enough to power 105 homes.

Check out our Major Solar Projects List for more notable installations.

Solar Companies in Washington

Looking for a local installer? Use the SEIA EnergySage Marketplace to compare quotes and find companies in your area. You can also review the average costs for installing solar in Washington, based on real price data from solar quotes.

Don't see your company listed? Complete our National Solar Database Survey!

Washington State Solar Policy Resources

Washington Utilities and Transportation Commission – Learn about the governing body that regulates the electricity rates and services of Washington public utilities

Washington State Legislature – Track pending legislation affecting solar energy, locate and contact individual legislators, and stay up to date on current legislative issues in Washington

DSIRE Incentives Database - Washington – Search a public clearinghouse for specific solar energy incentives in Washington and across the United States

U.S. Energy Information Administration - Washington State Profile – Explore official energy statistics, including data on electricity supply and demand, from the U.S. government

Washington State Energy Office


1All data from SEIA/GTM Research U.S. Solar Market Insight unless otherwise noted:

2Energy Information Administration, Electric Power Monthly:

3The Solar Foundation, State Solar Jobs Census:

4SEIA, National Solar Database:

5SEIA, Major Solar Projects List: