The Nuclear Reactor is a type of Energy Generator.
Nuclear Reactors can be crafted in an Enhanced Crafting Table.
A Nuclear Reactor 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. It is also required to be surrounded by water next to the reactor. Below and above are not necessary. It also needs to be supplied with Reactor Coolant Cells to prevent it from exploding.
You can manually use a reactor but in order to use cargo to automate the reactor, it requires a Reactor Access Port to be placed 3 blocks above the reactor.
The Nuclear Reactor supports all four Machine Modules and uses 9 slots instead of the usual 5. Read the central guide before stacking heavy Speed, because faster reactor setups also raise coolant pressure.
| Tier | Buffer | Generation |
| Nuclear Reactor | 16.4KJ | 600W |