Quad (unit)

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Physical unit
Unit name Quad
Unit symbol
Physical quantity (s) (Thermal) energy
Formula symbol
dimension
system Anglo-American system of measurement
In SI units
Named after Quadrillion BTU
Derived from British thermal unit

The Quad or QUAD is a unit of energy . Your unit symbol is quad . The quad does not belong to the International System of Units (SI) and is defined as 1 quadrillion British thermal units (Btu) . In the Anglo-American language area, the term one quadrillion is based on the short scale used there . Converted to SI units, is ( exajoules ).

The quad is used to indicate large amounts of energies, for example in national and global energy balances .

For example, the Energy Information Administration states the following primary energy consumption in quad for 2010 :

Switzerland 1,265 quad
Germany 13,937 quad
United States 98.041 quad
world 510,551 quad
Exemplary use of the quad in a Sankey diagram showing national energy flows in the USA.

Individual evidence

  1. ^ University of Illinois: Energy: Glossary , accessed April 27, 2014.
  2. WolframAlpha : quad as unit , accessed April 27, 2014.
  3. ^ American Physical Society: Energy Units , accessed April 27, 2014.
  4. EIA: International Energy Statistics , accessed April 27, 2014.