The Coal Generator is a type of Energy Generator.
Coal Generators can be crafted in an Enhanced Crafting Table.
A Coal generator must be placed in range of an Energy Regulator, Energy Connector or an Energy Capacitor (in a straight line, not diagonals) and provided with the appropriate fuel.
The Coal Generator supports all four Machine Modules. Efficiency is usually the first upgrade to test on fuel generators, while Capacity helps smooth short bursts of demand.
| Tier | Buffer | Generation |
| Coal Generator (I) | 64J | 24W |
| Coal Generator (II) | 256J | 48W |
| Coal Generator (III) | 256J | 128W |
| Coal Generator (IV) | 512J | 224W |