ENERGY STAR ™  is a joint program of the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Energy. ENERGY STAR provides energy efficient products and practices to help consumers make informed energy choices, save money, and protect the environment.

ENERGY STAR also provides strict energy efficiency guidelines and standards for products set by the EPA and U.S. Department of Energy (these products can be identified with the ENERGY STAR emblem:

ENERGY STAR emblem

ENERGY STAR emblem

To learn more, go to:
http://www.energystar.gov/index.cfm?c=about.ab_index