GGE

Encyclopedia : G : GG : GGE : GGE

GGE (or Gasoline gallon equivalent) is the amount of alternative fuel it takes to equal the energy content of one liquid gallon of gasoline. We can use compressed natural gas (CNG) as an example here. Since CNG is a gas rather than a liquid, its volume is measured in cubic feet (CF), rather than in gallons. Therefore, GGE is a way of comparing equivalent volumes of fuel based on their energy content in British Thermal Units (BTU).

The GGE of CNG is 127 cubic feet. This volume of CNG has the same energy content as one gallon of gasoline (based on 900 BTU/CF of CNG and 114,100 BTU/gallon of gasoline).

When consumers refuel their CNG vehicles in the USA, the CNG is usually measured and sold in GGE units. This is fairly helpful as a comparison to gallons of gasoline.

From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.