You can claim 30 percent of what you spend on qualified improvements up to $1500 for 2009 and 2010 combined. This 30% tax credit can be taken for adding energy saving improvements to your home such as certain heating and cooling systems, water heaters, energy efficient windows, doors, insulation and certain roofs. Installation is not covered. Look for the manufacturer's certification that the product qualifies as energy efficient under the terms of the new law. An energy star designation is all you need. You would have to spend $5,000 over a two year period to claim the full $1500.
http://www.nytimes.com/2010/02/14/business/yourtaxes/14energy.html?scp=1&sq=dont%20overlook%20the%20rewards%20for%20thinking%20green&st=cse
