Tax credits are available at 30% of the cost, up to $1,500, in 2009 & 2010 (for existing homes only)More >> courtesy of EnergyStarMore >> Tax credits are available at 30% of the cost, up to $1,500, in 2009 & 2010 (for existing homes only)More >> courtesy of EnergyStarMore >> Tax credits are available at 30% of the cost, up to $1,500, in 2009 & 2010 (for existing homes only)More >> courtesy of EnergyStarMore >> Tax credits are available at 30% of the cost, up to $1,500, in 2009 & 2010 (for existing homes only)More >> courtesy of EnergyStarMore >> Tax credits are available at 30% of the cost, up to $1,500, in 2009 & 2010 (for existing homes only)More >> courtesy of EnergyStarMore >> Tax credits are available at 30% of the cost, up to $1,500, in 2009 & 2010 (for existing homes only)More >> courtesy of EnergyStarMore >> Tax credits are available at 30% of the cost, with no upper limit through 2016 (for existing homes & new construction)More >> Tax credits are available at 30% of the cost, with no upper limit through 2016 (for existing homes & new construction)More >> Tax credits are available at 30% of the cost, with no upper limit through 2016 (for existing homes & new construction)More >> Tax credits are available at 30% of the cost, with no upper limit through 2016 (for existing homes & new construction)More >> Tax credits are available at 30% of the cost, with no upper limit through 2016 (for existing homes & new construction)More >>