ENERGY STAR® TAX CREDIT
As of December 31, 2007, most of the residential tax credits (windows, doors, roofs, insulation, HVAC, and non-solar water heaters) expired. The tax credit for solar water heaters and solar panels remains in effect through December 31, 2008.
Tax credits for 2008 are currently under review. For up-to-date status of tax credits, click here