Learn about synchrophasors and how they are helping grid operators keep power flowing reliably to American homes and businesses.
Americans used more energy in 2013 than they did in 2012, including more renewable, nuclear and fossil energy. Learn other facts about American energy use trends.
Join Energy.gov tonight as we livetweet about all the major energy points in the President's State of the Union address.
Test your knowledge of energy inventors Thomas Edison and Nikola Tesla with our downloadable "Who Said It?" quote quiz cards.
Check out our favorite energy-related photos!
Nikola Tesla and Thomas Edison played key roles in the War of the Currents. Learn more about AC and DC power -- and how they affect our electricity use today.
Learn facts about Nikola Tesla, one of history's most important energy-related inventors and engineers.
The Energy Department continues to take actions to protect our energy infrastructure, adapt to climate change and build partnerships to make communities across the country stronger and more resilient.
Underscoring President Obama’s Climate Action Plan to cut harmful emissions and double energy efficiency, the Energy Department is taking action to develop the next generation of combined heat and power (CHP) technology.
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