Material By Volume By Mass
Diesel Fuel 10,700
Wh/l 12,700
Wh/kg
Heating Oil 10,400 Wh/l 12,800 Wh/kg
Gasoline 9,700 Wh/l 12,200 Wh/kg
Butane 7,800 Wh/l 13,600 Wh/kg
LNG (-160°C) 7,216 Wh/l 12,100 Wh/kg
Propane 6,600 Wh/l 13,900 Wh/kg
Ethanol 6,100 Wh/l 7,850 Wh/kg
Methanol 4,600 Wh/l 6,400 Wh/kg
250 Bar
NG 3,100 Wh/l 12,100 Wh/kg
Liquid
H2 2,600 Wh/l 39,000 Wh/kg
150 Bar
H2 405 Wh/l 39,000 Wh/kg
NiMH Battery 280 Wh/l 100 Wh/kg
Li-Ion Battery 200 Wh/l 150 Wh/kg
Lead-Acid Battery 40 Wh/l 25 Wh/kg
STP
Propane 26 Wh/l 13,900 Wh/kg
STP
NG 11 Wh/l 12,100 Wh/kg
STP
H2 3 Wh/l 39,000 Wh/kg
Material By Volume By Mass
Liquid H2 2,600 Wh/l 39,000 Wh/kg
Propane 6,600 Wh/l 13,900 Wh/kg
Butane 7,800 Wh/l 13,600 Wh/kg
Heating Oil 10,400 Wh/l 12,800 Wh/kg
Diesel Fuel 10,700 Wh/l 12,700 Wh/kg
Gasoline 9,700 Wh/l 12,200 Wh/kg
LNG (-160°C) 7,216 Wh/l 12,100 Wh/kg
Ethanol 6,100 Wh/l 7,850 Wh/kg
Methanol 4,600 Wh/l 6,400 Wh/kg
Li-Ion Battery 200 Wh/l 150 Wh/kg
NiMH Battery 280 Wh/l 100 Wh/kg
Lead-Acid Battery 40 Wh/l 25 Wh/kg
(best volumetric type listed only)