What fuel does nuclear fission use?

Nuclear fission uses uranium as fuel.

How does nuclear fusion generate energy?

Nuclear fusion generates energy by merging light atoms, such as hydrogen, releasing vast amounts of energy in the process.

Is nuclear fusion currently used in power plants?

No, nuclear fusion is not currently used in power plants, as engineers have yet to sustain it at scale.

🔬 Science & Space

Nuclear Fission vs Nuclear Fusion

Better nuclear power?

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Who's winning: Nuclear Fission or Nuclear Fusion?

No votes yet — be the first to weigh in on Nuclear Fission vs Nuclear Fusion.

Nuclear fission powers hundreds of reactors worldwide, using uranium as fuel. This established technology has its advantages. However, nuclear fusion, which merges light atoms like hydrogen, promises a cleaner and virtually limitless energy source. The debate centers around which approach is better for nuclear power.

Why each side wins

☢️ Nuclear Fission

Nuclear fission has a proven track record, with over 400 reactors operating globally. It provides a reliable source of electricity, with a well-established infrastructure. Fission reactors can be designed to generate electricity on a large scale. This existing infrastructure is a significant advantage.

🔆 Nuclear Fusion

Nuclear fusion has the potential to provide vast amounts of clean energy, with minimal waste production. It uses abundant hydrogen as fuel, reducing reliance on finite resources like uranium. Fusion reactions also produce no greenhouse gas emissions, making them an attractive alternative. This clean energy potential is a major draw.

Tale of the tape

☢️ Nuclear Fission

Reactors worldwide: 400+
Fuel: Uranium

🔆 Nuclear Fusion

Fuel: Hydrogen
Grid reactors: 0

The verdict

To weigh the choice, consider the trade-offs between established infrastructure and clean energy potential. Those prioritizing reliability and existing technology may lean towards fission. Others, prioritizing sustainability and minimal waste, may prefer fusion.

Science & Space standing

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Nuclear Fission

#24 / 75

1500 ELO

Nuclear Fusion

#25 / 75

1500 ELO

Frequently asked

What fuel does nuclear fission use?: Nuclear fission uses uranium as fuel.
How does nuclear fusion generate energy?: Nuclear fusion generates energy by merging light atoms, such as hydrogen, releasing vast amounts of energy in the process.
Is nuclear fusion currently used in power plants?: No, nuclear fusion is not currently used in power plants, as engineers have yet to sustain it at scale.