Combustion Energy
| Fuel | Energy |
| Hydrogen | 141.9 |
| Gasoline | 47.0 |
| Diesel | 45.0 |
| Ethanol | 29.8 |
| Propane | 49.9 |
| Butane | 49.2 |
| Wood | 15.0 |
| Coal (Lignite) | 15.0 |
| Coal (Anthracite) | 27.0 |
| Natural Gas | 54.0 |
| Fuel | Energy |
| Hydrogen | 141.9 |
| Gasoline | 47.0 |
| Diesel | 45.0 |
| Ethanol | 29.8 |
| Propane | 49.9 |
| Butane | 49.2 |
| Wood | 15.0 |
| Coal (Lignite) | 15.0 |
| Coal (Anthracite) | 27.0 |
| Natural Gas | 54.0 |