New features to help you save money by saving energy.
The Energy Department's home energy efficiency experts will be answering your questions on ways to save energy and money at home.
Behind-the-scenes look at the process for converting algae into transportation fuel.
Interactive map shows potential for rooftop solar in New York City.
Learn about free resources available for teachers and students.
Blog
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September 12, 2012
The amount of electricity the United States generates from solar power has started to grow rapidly and is projected to reach 18,000 megawatt hours per day in 2013.
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September 12, 2012
The community of Boaz, Alabama, saves money by retrofitting streetlights with new lighting technology.
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September 11, 2012
On Thursday, we are answering your questions about ways to save energy and money at home.
News
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September 12, 2012
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August 31, 2012
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August 31, 2012
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August 29, 2012
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August 28, 2012