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The Nuclear Power Plant is a power generator building that generates power by burning  Uranium Fuel Rods or  Plutonium Fuel Rods, producing  Uranium Waste or  Plutonium Waste respectively.

One Nuclear Power Plant produces 2,500 MW at 100% clock speed.

Fuel energy values[]

At 100% clock speed, one Nuclear Power Plant consumes 300 m3 Water/min, no matter what fuel is used.

When overclocked, Nuclear Power Plants scale differently compared to any other generator buildings; their power exponent is 1/1.321928 instead of 1/1.3. Therefore, at 250% clock speed, they operate 2.00000009951 times as fast, for resource input, waste output, and power production. This allows them to safely operate overclocked when Pipeline Mk.2s are used to supply water, and unlike other generators, it may be worth overclocking to simplify the setup.

 Uranium Fuel Rod (750,000 MJ)[]

Clock speed Burn time (sec) Rods/min Waste/min Waste per rod
100% 300 0.2 10 50
250% 150 0.4 20 50

 Plutonium Fuel Rod (1,500,000 MJ)[]

Clock speed Burn time (sec) Rods/min Waste/min Waste per rod
100% 600 0.1 1 10
250% 300 0.2 2 10

Fuel consumption[]

Recipe NameCrafting Time (sec)IngredientsProducts
Plutonium Waste6001x  Plutonium Fuel Rod0.1/min
3000x  Water300/min
10x  Plutonium Waste1/min
Uranium Waste3001x  Uranium Fuel Rod0.2/min
1500x  Water300/min
50x  Uranium Waste10/min

Generators per Uranium node[]

A single normal Uranium node can support the following number of Nuclear Power Plants operating at peak capacity, without the use of alternate recipes:

Miner Uranium/min Water Extractors Water m3/min Nuclear Power Plants Total
Mk.1 60 7.5 900 3 7 500 MW 30
Mk.2 120 15 1800 6 15 000 MW 60
Mk.3 240 30 3600 12 30 000 MW 120
Mk.3 @ 250% 600 75 9000 30 75 000 MW 300


  • The old version shown in its teaser video had the nuclear reactor exposed to the ambient. The fuel rods were operated by a robotic arm, which could occasionally drop the fuel rod into the cooling liquid under the reactor. The belt input was located at the front and output at the back rather than right next to each other.
  • Before its official implementation, it was revealed that the design of the Nuclear Reactor/Power Plant has been changed.[1]
  • When building on foundations, it is possible to remove five foundations at the center of its footprint, and yet Nuclear Power Plant can still be built on it without getting the 'Floor is too steep' warning, as long as each of its supports lands on the foundation.
  • The Nuclear Power Plant has a faint steam animation rising from the top of its tower. This steam animation occurs when the Power Plant has fuel, and will even occur when the Power Plant has no water.
    • The steam VFX were referred to by Snutt & Jace as "the shit ... coming out of the nuclear butthole".[2]



  • Patch Halved Uranium Waste output (from 20 to 10 per minute).
  • Patch Halved Plutonium Waste output per minute (was 2 per generator, is now 1).
  • Patch UI now properly shows waste output
  • Patch
    • Added ability to produce power from Plutonium Fuel Rods, generating Plutonium Waste
    • Quadrupled Uranium Waste output per Uranium Fuel Rod (from 25 to 100 per rod)
  • Patch Now actually requires Water to operate
  • Patch 0.3: Now requires Water to operate, appearance changed accordingly to include a Pipeline input
  • Patch Tweaked LODs
  • Patch Now produces Waste over time instead of just spitting them all out after a Fuel Rod is consumed
  • Patch 0.1.19: 'More work done on the Nuclear Power Plant'
  • Patch 0.1.17: No longer encroaches Foundations
  • Patch 0.1.16: Changed the mesh
  • Patch 0.1.14: Made available


See also[]