Topic summary
Quad (unit)
A quad is a unit of energy equal to 10 (a short-scalequadrillion) BTU, or 1.055×10 joule (1.055 exajoules or EJ) in SI units.
The unit is used by the U.S. Department of Energy in discussing world and national energy budgets. The global primary energy production in 2022 was 637.8 quad, i.e., 672.9 EJ.