The quad is a unit of energy defined as 1 quadrillion (1015) BTU.[1] Quads are used in similar settings as the exajoule (1018 joules) when speaking of world or national energy supply/demand.
Generally, quads refer to primary energy rather than end use energy.
Allison Campbell, Jordan Hanania, Isaac, Kailyn Stenhouse, Jason Donev
Last updated: February 2, 2021
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