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.
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.
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.
There are currently at least 209 solar panel installations throughout the state of Washington right now. [1]
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.
The Solar Foundation recently published the National Solar Jobs Census 2015, its yearly update of current employment, job trends, and growth projections in the U.S.
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Residential electricity prices in Washington averaged 9.46 cents per kilowatthour (¢/kWh) in November 2018, which was approximately 27% less than the overall U.S. average residential electricity rate of 12.95¢/kWh in November. [2]
Vote now: What do you think? Are solar panels & solar power a good choice for residents of the state of Washington?
Residential natural gas prices in Washington averaged $9.10 per thousand cubic feet (Mcf) in November 2018, which was about 3% less than the overall U.S. average residential natural gas rate of $9.43 per Mcf in November. [3]
Washington ranks 13th among all states in the U.S. with a population of approximately 6,724,540. [4]
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.
About half of the sun's energy is absorbed by the Earth's surface; about 30 percent is reflected back from the surface.
