Some federal tax credits from some energy-efficient home improvements and other energy saving measures have been extended. Websites offer detailed information for homeowners and builders. Here's a sampling:
Air-Conditioning, Heating and Refrigeration Institute • Spotlights specific federal tax credit amounts for changes made to residential HVAC, water heaters, home gas and oil, at http://bit.ly/UflvvX.
Alliance to Save Energy • Offers background and details on energy-efficient tax credits for 2012, at http://bit.ly/UUowk0.
Energy Star • Click on "Tax Credits for Energy Efficiency" near the bottom of the page to learn about different tax credits, at http://www.energystar.gov.
U.S. Department of Energy • Provides energy saving tax credits for various programs under "Savings" section, at http://www.energy.gov/taxbreaks.htm.