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Energy Sources

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.

Featured

Working with Alaska to Reduce Energy Use and #ActOnClimate
New Energy Department competition to help rural Alaskan communities save energy and fight climate change. | Graphic by <a href="/node/1332956">Carly Wilkins</a>, Energy Department

New Energy Department competition to help rural Alaskan communities save energy and fight climate change.

Nevada’s State Park System Strengthens Attractions with Solar
State Energy Program funds from the U.S. Department of Energy supported the installation of batteries to store energy from this solar system at Nevada's Beaver Dam State Park near the Utah border.

The state park system across the U.S. is critical to historic preservation, natural history, wildlife conservation, and education. The Energy Department plays an important role in supporting state parks thought clean energy investment.

EERE Success Story—Colorado Dairy Industry Boosts Energy Efficiency
Energy Sources

Historically, the U.S. dairy industry has been one of the most energy-intensive forms of agriculture. Colorado is at the forefront of the fight to increase energy efficiency in this sector.

New Bedford Builds Foundation for Energy-Centric Economic Development
Pictured here is one of the solar arrays that is providing New Bedford with clean, renewable energy to power its municipally owned buildings. This ground-mounted solar array is built on a brownfield site. | Photo courtesy of Con Edison Solutions.

How a focus on energy efficiency and renewable energy is helping one Massachusetts city prosper.