Primary energy sources take many forms, including nuclear energy, fossil energy -- like oil, coal and natural gas -- and renewable sources like wind, solar, geothermal and hydropower. These primary sources are converted to electricity, a secondary energy source, which flows through power lines and other transmission infrastructure to your home and business.
Learn more about America’s energy sources: fossil, nuclear, renewables and electricity.
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New map shows projected growth of the wind industry over the next 35 years.
Part of our "Top Things You Didn't Know About..." series, we outline 6 fascinating facts about nuclear power.
Part of our How Energy Works series, a comprehensive look at how wind turbines work.
For the first time since 1995, U.S. domestic oil production exceeded foreign imports in October.
Counting down our list of top things you didn't know about solar energy -- read on for more on the most abundant energy resource known to mankind.