U.S. Department of Energy Headquarters, the Forrestal Building, in Washington, D.C. (Payton Chung/Flickr/CC BY-SA 2.0 DEED) The new definition was shepherded by DOE secretary Jennifer M. Granholm and ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. When it comes to being a human on planet Earth, energy affects ...

DEFINITION: An energy source derived from natural resources which will not deplete when used. Examples of renewable energy include offshore and onshore wind, solar, geothermal power and tidal power.

DEFINITION: The energy available for work (economic growth) once the energy used to obtain a given energy has been taken into account, expressed as a ratio. For example, fracking has a net energy of 5 ...

According to the European Commission, the EU's Energy Label has been a key driver in helping consumers choose more energy-efficient products since its implementation for household appliances in 1994.