Energy Star

http://www.energystar.gov

Federal Tax Credits for Energy Efficiency

http://www.energystar.gov/index.cfm?c=products.pr_tax_credits#c2

Iowa Energy Center

Download the IEC's helpful Home Series publications at:

www.energy.iastate.edu/homeseries

Plug-In Partners

http://www.pluginpartners.org

U.S. Department of Energy

http://www.energy.gov

U.S. Department of Energy

Office of Energy Efficiency and Renewable Energy

http://www.eere.energy.gov