The National Academies: What You Need To Know About Energy

The National Academies

What You Need To Know About Energy

As debates about energy grow more intense, Americans need dependable, objective, and authoritative energy information. The National Academies, advisers to the nation on science, engineering, and medicine, provide the facts about energy—a complex issue that affects us as individuals and as a nation.

Uses

Discover how the strength of American industry, speed of transportation, and countless modern conveniences all come from our ingenious use of energy.

Sources

The United States depends on a variety of energy sources. What advantages and challenges does each one present to our nation and its people?

Costs

Learn about the costs of our unprecedented standard of living—to the environment, to our national security, and to irreplaceable resources.

Efficiency

Increasing supply isn’t the only answer to a stable energy future. Discover how reducing demand through improved efficiency achieves the same effect.

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Energy Videos

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America's Energy Future

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What do you know about energy?

Which renewable energy source contributed the most to the total energy consumed in the United States in 2008?

  • Sorry, that’s incorrect.

    Out of all the renewable energy sources, biomass contributed the most to U.S. energy consumption in 2008.

  • Sorry, that’s incorrect.

    Out of all the renewable energy sources, biomass contributed the most to U.S. energy consumption in 2008.

  • Sorry, that’s incorrect.

    Out of all the renewable energy sources, biomass contributed the most to U.S. energy consumption in 2008.

  • Correct!

    Out of all the renewable energy sources, biomass contributed the most to U.S. energy consumption in 2008.

Energy Defined

Plug-In Hybrid Electric Vehicle (PHEV)

A vehicle that contains a gasoline powered engine as well as batteries that can be charged when plugged into an electric power source. The vehicle typically runs on battery power until the charge has been depleted and then uses the gasoline engine for extended range.

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