Solar power in Washington has expanded to over 27 MW in 2013, largely due to a 30% federal tax credit, and declining installation costs. Washington also 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.[1][2]
^Sherwood, Larry (July 2014). "U.S. Solar Market Trends 2013"(PDF). Interstate Renewable Energy Council (IREC). Retrieved 2014-07-21.
^Sherwood, Larry (July 2013). "U.S. Solar Market Trends 2012"(PDF). Interstate Renewable Energy Council (IREC). p. 16. Retrieved 2013-10-11.
^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.
^Sherwood, Larry (June 2011). "U.S. Solar Market Trends 2010"(PDF). Interstate Renewable Energy Council (IREC). Retrieved 2011-06-29.
^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.
^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.
^Sherwood, Larry (August 2008). "U.S. Solar Market Trends 2007"(PDF). Interstate Renewable Energy Council (IREC). Retrieved 2010-07-24.[permanent dead link]