Definition: Quad

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Quad

One quadrillion Btu. (1,000,000,000,000,000 Btu). Describes a very large quantity of energy, such as the annual energy output of the United States.[1][2]

Wikipedia Definition



Related Terms
British thermal unitEnergyenergy
References
  1. http://www.eia.gov/tools/glossary/index.cfm?id=Q
  2. http://needtoknow.nas.edu/energy/glossary/