Nuclear Power Plant

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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 240 m3 Water/min, no matter which type of fuel rod is used.

When overclocked, Nuclear Power Plants produces more power linearly. Therefore, at 250% clock speed, they operate 2.5 times as fast, for resource input, waste output, and power production.

 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% 120 0.5 25 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% 240 0.25 2.5 10

Fuel consumption

Recipe Ingredients Duration Products Unlocked by
Plutonium Fuel Rod (burning)
1 × Plutonium Fuel Rod.pngPlutonium Fuel Rod0.1 / min
2,400 × Water.pngWater240 / min
600 sec
10 × Plutonium Waste.pngPlutonium Waste1 / min
Tier 8 - Particle Enrichment
Uranium Fuel Rod (burning)
1 × Uranium Fuel Rod.pngUranium Fuel Rod0.2 / min
1,200 × Water.pngWater240 / min
300 sec
50 × Uranium Waste.pngUranium Waste10 / min
Tier 8 - Nuclear Power

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 6 720 3 7 500 MW 30
Mk.2 120 12 1440 6 15 000 MW 60
Mk.3 240 24 2880 12 30 000 MW 120
Mk.3 @ 250% 600 60 7200 30 75 000 MW 300


  • The old version shown in its teaser video was an air-cooled design with a completely exposed core. 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 had been changed.[1]
  • When building on foundations, it is possible to remove five foundations at the center of its footprint, and yet the 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 a 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 Nuclear Power Plant will show Cherenkov Radiation in form of a blue circle on Foundations upon which the Nuclear Power Plant is placed.



  • Patch Reduced water consumption rate from 300 m3/min to 240 m3/min at 100% clock speed. Overclocking is now linear.
  • Patch
    • Fixed production VFX not being properly started for the Nuclear Generator
    • Potentially fixed a crash for the Nuclear Generator particle effects
  • 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