Note: SunWaterMV.com is working hard to minimize the payback time by keeping cost down.  This budget web builder apparently does not have the ability to install working links.   Please copy and paste the link into your web search engine.

http://www.dsireusa.org/incentives/index.cfm?getRE=1?re=undefined&ee=1&spv=0&st=0&srp=1&state=MA

http://solar-estimate.org/   (Solar-Pro Installer Locator   Consumer based.  Not paid by contractors for listings.)

http://www.nabcep.org/    (North American Board of Certified Energy Practitioners)

http://www.solar-rating.org/      (Solar Ratings & Certification Corporation)

http://www.masssave.com/   (Renewable and Energy Efficiency financing)

http://ases.org/      (American Solar Energy Society)

http://www.apricus.com/  (Apricus, the worldwide leader in EVT)