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Solar Power in Washington
Solar Energy Levels in Washington
The average monthly solar radiation level in Washington's capital city, Olympia, of 3.75 kilowatt hours per square meter per day (kWh/m2/day) is approximately 1% greater than the average level of 3.73 kWh/m2/day in an area with historically low levels (WA) and is approximately 43% less than the average level of 6.6 kWh/m2/day in an area with historically high levels (NV). [1]
→ Values listed as 0 (zero) are not available (N/A).
→ Washington values listed here are based on the capital, Olympia.
Solar Radiation in Washington
Below is a month-by-month comparison of how average Washington solar radiation levels compare to average levels in an area with historcially high levels (NV) and one with historically low levels (WA). [1]
→ k/m/d = kWh/m2/day = kilowatt hours per square meter per day.
→ Values listed as 0 (zero) are not available (N/A).
→ Washington values listed here are based on the capital, Olympia.
Solar Installs in Washington
Solar Panel Installations in Washington
A look at solar installs in Washington. The chart below visualizes install totals for the top five counties in WA vs. the cumulative install total of rest of WA counties combined.
Breakdown of Solar Installs in Washington
There are currently at least 209 solar panel installations throughout the state of Washington right now. [1]
Top Five Solar Install Counties in Washington
Klickitat County: 52 solar installs
King County: 46 solar installs
Chelan County: 29 solar installs
Benton County: 18 solar installs
Thurston County: 12 solar installs
Everywhere Else: 52 solar installs
Note: Install totals presented here are those voluntarily contributed from a variety of sources including solar incentive programs, utilities, installers, and the general public. [1] Data for some states is thinner than others.
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Cost of Utilities in Washington
Washington Electricity Costs
Residential electricity prices in Washington averaged 9.51 cents per kilowatthour (¢/kWh) in January 2018, which was approximately 22% less than the overall U.S. average residential electricity rate of 12.23¢/kWh in January. [2]
Solar Power Poll: Washington
Vote now: What do you think? Are solar panels & solar power a good choice for residents of the state of Washington?
Washington Natural Gas Costs
Residential natural gas prices in Washington averaged $10.18 per thousand cubic feet (Mcf) in January 2018, which was about 14% more than the overall U.S. average residential natural gas rate of $8.93 per Mcf in January. [3]
More about Washington
About Washington
Washington ranks 13th among all states in the U.S. with a population of approximately 6,724,540. [4]
Solar Energy in WA
To learn more about solar energy and solar power in Washington, or for additional solar-related resources in WA, visit the U.S. Energy Information Administration.
Did you know?
Nineteen-year-old Edmund Becquerel, a French experimental physicist, discovered the basis of solar energy in 1839.