The following are some useful links to major state and federal incentive programs, status updates and forms for solar power projects and investments:

California Solar Initiative (CSI) and New Solar Home Partnership

CSI Rebate Level Trigger Tracker

Massachusetts Small Renewables Initiative

Massachusetts Commonwealth Solar

Florida Solar Rebate Program

Database of State Incentives for Renewable Energy

Residential Solar Energy Federal Tax Credit Form

Commercial Solar Energy Investment Tax Credit Form

Commercial Solar Energy Depreciation Form

U.S. Dept. of Treasury Cash Grant In Lieu of Tax Credit Program