What You Need To Know About Energy
How We Use Energy
We divide our energy use among four economic sectors: residential, commercial, transportation, and industrial. Heating and cooling our homes, lighting office buildings, driving cars and moving freight, and manufacturing the products we rely on in our daily lives are all functions that require energy. If projections are correct, we’re going to keep needing more. In the United States alone, energy consumption is expected to rise 7.3% over the next two decades. Global consumption is expected to increase by 40% over the same time period.
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Energy Hands-on
Understanding Efficiency
Learn the significance of energy efficiencyThe Promise of Better Lighting
Energy savings through lighting technologyOur Energy System
A visualization of all our energy sourcesEnergy Defined
- Cooling Degree Days
A value representing the amount of fuel required for building cooling, calculated by summing the difference of each day’s average temperature above 65 degrees Fahrenheit.
National Academies
Search the National Academies Press website by selecting one of these related terms.
Source Material
- Real Prospects for Energy Efficiency in the United States (2010)
- Electricity from Renewable Resources: Status, Prospects, and Impediments (2010)
- Liquid Transportation Fuels from Coal and Biomass: Technological Status, Costs, and Environmental Impacts (2009)
- Effectiveness and Impact of Corporate Average Fuel Economy (CAFE) Standards (2002)
- Partnerships for Solid-State Lighting: Report of a Workshop (2002)
- Review of the Research Program of the FreedomCAR and Fuel Partnership: First Report (2005)
- Decreasing Energy Intensity in Manufacturing: Assessing the Strategies and Future Directions of the Industrial Energy Technologies Program (2005)
