Energy Volume & Weight

 

The charts below illustrate various fuels’ energy, volume & weight.

Energy

Fuel BTU/Gallon
Bunker Fuel 153,000 per bunker fuel gallon
Diesel (DGE) 139,000 DGE = Diesel Gallon Equivalent
Gasoline (GGE) 125,000 per gasoline gallon
CNG (GGE) 125,000 GGE = Gasoline Gallon Equivalent
Propane 91,300 per propane gallon
LNG 82,000 per LNG gallon
Ethanol 76,000 per ethanol gallon

Weight

Diesel 7.09 lbs/Gallon
CNG 5.66 lbs/GGE
LNG 3.49 lbs/Gallon
Water 8.34 lbs/Gallon

CNG

1 Cubic Foot = 1,000 BTU (typical value)
100 Cubic Feet = 1C cubic feet = 0.1M cf = 1 Therm = 100,000 BTU
1 mmBTU = 1,000,000 BTU = 10 Therms = 1 dth (dekatherm) = 1 mcf
1 Therm = 100,000 BTU
1.25 Therms = 1 GGE = 1 CNG Gallon = 125,000 BTU
1.39 Therms = 1 DGE = 139,000 BTU
8 GGE = 1 mmBTU
1 GGE = 125 standard cubic feet (scf)

LNG

1 LNG Gallon = 82,000 BTU
1 DGE = 139,000 BTU
1.7 LNG Gallons = 1 DGE (139k/82k)
1.5 LNG Gallons = 1 GGE (125k/82k)
12.2 LNG Gallons = 1 mmBTU
7.19 DGE = 1 mmBTU (1mm / 139k)
10 LNG Gallons = 5.9 DGE (10/1.7)
1 DGE = 139 scf

Conversions

GGE to DGE   DGE to GGE
1 GGE = 0.899 DGE (125/139)   1 DGE = 1.112 GGE
     
Therms to GGE   Therms to DGE
10 Therms = 8 GGE (10/1.25)   10 Therms = 7.19 DGE (10/1.39)
$0.50/Therm = $0.40/GGE ($0.50 / 1.25)   $0.50/Therm = $0.36/DGE ($0.50 / 1.39)
     
GGE to Therms   DGE to Therms
10 GGE = 12.5 Therms (10 x 1.25)   10 DGE = 13.9 Therms  (10x 1.39)
$0.40/GGE = $0.50/Therm ($0.40 x 1.25)   $0.36/Therm = $0.50/Therm ($0.36/1.39)