A national green energy corporation, Smart Power, launched a marketing campaign several years ago called "Clean Energy Communities." Municipalities which sign up for the program, demonstrate a commitment to continued development of clean energy options, and succeed in reaching certain benchmark levels of household and business participation in clean energy initiatives, can receive incentives such as a free 1kW solar installation or communitywide energy audit. It's been fairly successful in Connecticutt and has expanded into Pennsylvania and North Carolina. I don't know if this is legitimate, or just another corporate greenwashing ploy, but it sounds good.