Solar installation, Shelton

As of the first quarter of 2023, Washington State has 604 MW of solar power electricity generation.[1] This is an increase from about 300 MW in 2021 and 27 MW in 2013.

Washington pays a feed-in tariff of up to $5,000/year of 15 cents/kWh, which is increased by a factor of 2.4 if the panels are made in the state and by an additional 1.2 if the inverters are made in state.[2][3]

Amount of sunlight

The average insolation in Washington's two largest cities are as follows.

In the charts, a peak sun hour is one kilowatt-hour per square meter of solar irradiance.[4]

Source: NREL[5]
Source: NREL[6]

Installed generation capacity

Total grid connected

Grid-Connected PV Capacity (MW)[7][8][9][10][11][12][13][14]
Year Capacity Change % Change
20071.9
20083.71.895%
20095.21.541%
20108.02.954%
201112.34.254%
201219.57.259%
201327.47.941%
2014397.242%
2015622659%
2016852337%
20171052023%
20181696461%
20192164727%
2020250.334.315%
2021297.647.3 %
2022585287.4 %

Utility-scale

Utility-scale solar generation in Washington (GWh)[15]
Year Total Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
20182000000000011
201943224445554422
202047134555764421
2021341256677

See also

References

  1. ↑ "Washington Solar | SEIA". www.seia.org. Retrieved 2023-08-19.
  2. ↑ Washington State Creates Incentive for Home Solar Power Production
  3. ↑ Washington Renewable Energy Production Incentives Archived 2012-05-10 at the Wayback Machine
  4. ↑ https://www.cnet.com/home/energy-and-utilities/peak-sun-hours/
  5. ↑ "PV Watts". NREL. Retrieved 19 August 2012.
  6. ↑ "PV Watts". NREL. Retrieved 19 August 2012.
  7. ↑ Sherwood, Larry (July 2014). "U.S. Solar Market Trends 2013" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2014-07-21.
  8. ↑ Sherwood, Larry (July 2013). "U.S. Solar Market Trends 2012" (PDF). Interstate Renewable Energy Council (IREC). p. 16. Retrieved 2013-10-11.
  9. ↑ Sherwood, Larry (August 2012). "U.S. Solar Market Trends 2011" (PDF). Interstate Renewable Energy Council (IREC). p. 17. Archived from the original (PDF) on 2012-09-06. Retrieved 2012-08-16.
  10. ↑ Sherwood, Larry (June 2011). "U.S. Solar Market Trends 2010" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2011-06-29.
  11. ↑ Sherwood, Larry (July 2010). "U.S. Solar Market Trends 2009" (PDF). Interstate Renewable Energy Council (IREC). Archived from the original (PDF) on 2010-09-25. Retrieved 2010-07-28.
  12. ↑ Sherwood, Larry (July 2009). "U.S. Solar Market Trends 2008" (PDF). Interstate Renewable Energy Council (IREC). Archived from the original (PDF) on 2009-11-23. Retrieved 2010-07-24.
  13. ↑ Sherwood, Larry (August 2008). "U.S. Solar Market Trends 2007" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2010-07-24.
  14. ↑ Washington Solar
  15. ↑ "Electricity Data Browser". U.S. Department of Energy. March 28, 2018. Retrieved October 1, 2021.
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