Advancing Informal STEM Learning (AISL)
http://www.nsf.gov/pubs/2015/nsf15593/nsf15593.htm?org=NSF
Link to The NSF Grant
The Capital Construction project should be examined the year before the next biennium. Examining the guidelines should start in the summer of 2016.
Sunshot which is run by the Department of Energy occasionally has grants available that include solar construction.
http://energy.gov/eere/sunshot/financial-opportunities
If Federal Grant is procured the State may provide matching funds
http://www.commerce.wa.gov/Programs/Energy/Office/Pages/CEFfederalmatch.aspx