Solar incentives are available in many states but differ in each. State incentives range from credits or rebates, to property tax exemptions and utility rate discounts. Tax credits and rebates can be up to 50% of the systems cost. Specific details on available state incentives can be found by visiting the website www.dsireusa.org. CA rebate is $0.65/watt. For example, a 3.0kw system will qualify for a $1950 rebate.