The DSIRE project tracks information on state, utility, local, and selected federal incentives that promote the use of renewable energy technologies. For more information on federal incentives, see What federal incentives does DSIRE track. On the DSIRE website, incentives are grouped into two categories as follows:
(1) Financial Incentives: tax incentives, grants, loans, rebates, industry recruitment, bond programs, and production incentives.
(2) Rules, Regulations, & Policies: public benefits funds, renewables portfolio standards, net metering, interconnection, extension analysis, generation disclosure, contractor licensing, equipment certification, solar/wind access laws, and construction & design standards (including building energy codes and energy standards for public buildings), required utility green power options, and green power purchasing/aggregation policies.
When I search by my state, I see that there are quite a few incentives for solar power, which is good because when we FINALLY get around to putting the addition on the house (there always seems to be a good reason why now is not the right time), that is one thing we are strongly considering.
This is a fabulous resource. I hope you find it helpful.