Federal Tax Credit
Investment Tax Credit (ITC) allows individuals to deduct 30% of the cost of a solar system from individual federal income taxes.
Individual State Rebates
Many states offer cash rebates that are either flat amount or are based on the size of your solar power system – check out the U.S. governments Database of State Incentives for Renewables & Efficiency for more information on the rebates in your particular area;
Property Tax Exemptions
Many states also specifically exclude the value a solar energy system from your your annual property taxes… for example, if a new solar power system adds $30,000 to the value of your home, that $30,000 will be exempted from the total assessed value and your property taxes will not increase as a result of the new system.
Municipal and Utility Rebates
In addition to the federal and state incentives, many local municipalities and utilities will offer rebates on top of everything else…please check out Database of State Incentives for Renewables & Efficiency for any incentives in your specific area.