Skip to content

Fuel Cycle

MaikyDevs edited this page Nov 1, 2026 · 1 revision

Fuel Cycle

From uranium ore to plutonium and nuclear waste.

Overview

  1. Mine Uranium Ore, smelt it into Uranium Ingots
  2. Enrich it into Enriched Uranium
  3. Turn enriched uranium into Fuel Pellets, then Uranium Fuel Rods
  4. Burn the rods in the reactor. They come out as Spent Fuel Rods.
  5. Reprocess spent rods into Plutonium and Nuclear Waste
  6. Use the plutonium for MOX Fuel Rods or a Plutonium Core
  7. Lock the waste away in a Nuclear Waste Barrel

Enrichment

Two ways:

  • By hand: 4 uranium ingots, 4 redstone and a blaze powder make 1 enriched uranium
  • Gas Centrifuge: 2 uranium ingots make 1 enriched uranium in 10 seconds, using 40 FE per tick

Fuel

Item Recipe Notes
Fuel Pellet 1 enriched uranium gives 3
Uranium Fuel Rod 3 fuel pellets and 6 iron nuggets Lasts 20 minutes per fuel assembly at full power
MOX Fuel Rod 2 plutonium, 1 fuel pellet and 6 iron nuggets Same burn time, 15 % more heat

Put the rods into the reactor's Fuel Access Hatch. The controller pulls them in as soon as there's room in the core.

Reprocessing

The Reprocessing Plant takes 1 spent fuel rod and makes 1 plutonium and 2 nuclear waste in 15 seconds, using 80 FE per tick.

Spent fuel rods are highly radioactive (0.25 RAD/s each). Don't carry them around.

Machines

The Gas Centrifuge and Reprocessing Plant both:

  • store up to 100,000 FE
  • take items in from the top and sides (hoppers work)
  • give results out at the bottom
  • show progress and power in their screen

Nuclear Waste Barrel

A lead lined barrel with 9 slots. Anything inside it doesn't radiate at all. Store nuclear waste and spent fuel rods here.

Nuclear waste is useless for anything else.

Plutonium

  • 4 plutonium, 4 lead ingots and a diamond make a Plutonium Core for bombs
  • MOX fuel rods for the reactor

Recipes

See Recipes.

Clone this wiki locally