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A clean energy revolution is taking place across America, underscored by the steady expansion of the U.S. renewable energy sector.

The clean energy industry generates hundreds of billions in economic activity, and is expected to continue to grow rapidly in the coming years. There is tremendous economic opportunity for the countries that invent, manufacture and export clean energy technologies.

Responsible development of all of America’s rich energy resources -- including solar, wind, water, geothermal, bioenergy & nuclear -- will help ensure America’s continued leadership in clean energy. Moving forward, the Energy Department will continue to drive strategic investments in the transition to a cleaner, domestic and more secure energy future.

ENERGY SOURCES

Solar
Learn about the Energy Department's efforts to advance technologies that drive down the cost of solar energy in America.
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Wind
Learn about the Energy Department's R&D investments to improve the performance and lower the cost of innovative wind energy technologies.
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Water
Learn about the Energy Department's commitment to develop and deploy clean, domestic power generation from hydropower, waves, and tides.
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Geothermal
Geothermal energy is heat energy from the earth. Learn about the Energy Department's investments in harnessing this important domestic heat source.
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Bioenergy
Learn how the Energy Department is working to sustainably transform the nation's abundant renewable resources into biomass energy.
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Nuclear
Nuclear power, the use of sustained nuclear fission to generate heat and electricity, provides around 6 percent of the world's energy.
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Hydrogen & Fuel Cells
Fuel cells offer a highly efficient and fuelflexible technology that cleanly produces power and heat with low or zero emissions. 
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Solar, Wind, Hydropower: Home Renewable Energy Installations

A guide to figuring out if solar, wind or other small renewable energy system is right for you.

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Top 6 Things You Didn't Know About Solar Energy

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.

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Top 10 Things You Didn't Know About Wind Power
Brush up on your knowledge of wind! Get the details on a few of the lesser-known wind energy facts.
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Top 10 Things You Didn't Know about Hydropower

Test your energy knowledge by checking out these surprising facts about hydropower.

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Top 10 Things You Didn't Know about Enhanced Geothermal Systems

The U.S. generates more electricity through geothermal energy than any other country in the world. Learn about the breakthrough technology that...

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6 New Things Happening with Biofuels

The science and industry of biofuels is changing rapidly. See what’s new with the fuels of the future.

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Related Links

Office of Energy Efficiency & Renewable Energy
The Office of Energy Efficiency and Renewable Energy (EERE) strengthens U.S. energy security, environmental quality, and economic vitality.
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Loan Programs Office
LPO investments accelerate the deployment of innovative clean energy projects & advanced technology vehicles manufacturing facilities across the U.S.
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ARPA-E
The Advanced Research Projects Agency-Energy (ARPA-E) funds game-changing energy technologies that are too early for private-sector investment.
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