Unless Congress extends existing tax credits for residential energy efficiency, 2013 is your last chance to claim up to $500 in green energy credits.
"Insulation, energy efficient windows and doors, high efficiency air conditioner and heaters — we still have credits for those."
Still, the cap is small at just $500, and it's not applicable if you claimed it previously since the credit was passed in 2011.
A separate and more substantial credit is available for solar energy installations, so long as they are on your primary residence and not a rental property.
"The credit is for 30% of the cost, including installation, including wiring, including everything."