Uranium and plutonium are the high-density energy sources used to power nuclear reactors.

Uranium is naturally occurring ore found deep underground. It can be processed into fuel pellets for standard reactor operation.

Plutonium is a stronger fuel source obtained by destroying uranium crystals with an enderic laser. It can also be created with particle collisions.

Raw ores must be processed through a pulverizer and centrifuge to create enriched pellets. These pellets are consumed inside nuclear reactors to generate very large amounts of energy.