As of the first quarter of 2023, Washington State has 604 MW of solar power electricity generation. 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.Washington State Creates Incentive for Home Solar Power ProductionWashington Renewable Energy Production Incentives

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.

Source: NRELSource: NREL

Installed generation capacity

Total grid connected Grid-connected PV capacity (MW)Washington SolarYearCapacityChange% change 2007 1.9 2008 3.7 1.8 95% 2009 5.2 1.5 41% 2010 8.0 2.9 54% 2011 12.3 4.2 54% 2012 19.5 7.2 59% 2013 27.4 7.9 41% 2014 39 7.2 42% 2015 62 26 59% 2016 85 23 37% 2017 105 20 23% 2018 169 64 61% 2019 216 47 27% 2020 250.3 34.3 15% 2021 297.6 47.3 % 2022 585 287.4 %

Utility-scale + Utility-scale solar generation in Washington (GWh) Year Total Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec% of generation% of generation for utility and small-scale solar combined 2018 2 0 0 0 0 0 0 0 0 0 0 1 1 0.001%0.13% 2019 43 2 2 4 4 4 5 5 5 4 4 2 20.041%0.23% 2020 47 1 3 4 5 5 5 7 6 4 4 2 10.040%0.25% 2021 50 1 2 5 6 6 7 7 6 5 4 210.045%0.32%2022831355667641314110.07%0.41%2023363152334421652524535271680.35%0.86%20244371118404455595655443314100.43%1.05%20256292427436980868975604120140.61%1.31%20261624

Small-scale +Small-scale solar generation in Washington (GWh)YearTotalJanFebMarAprMayJunJulAugSepOctNovDec% of generation2018150581115171720191711650.13%20192057111521232427262215770.19%20202508151925282933312718980.22%20213081017233135364139342211100.28%20223931221293944465250442915130.34%20235181728385258606966573819170.50%20246342137486572748479684422200.62%20257222441557482849590785125230.70%20262847

See also

List of power stations in Washington#Solar Wind power in Washington (state) Solar power in the United States Renewable energy in the United States

References

External links