fusion vs burning hydrogen

Question

With fusion in the news often, I was wondering what makes it special as opposed to simply burning hydrogen with oxygen like a fuel cell does?

Doesn’t both require the uneconomical electrolysis to source the hydrogen in the first place?

In: 1

Answer 1

Fusion produces significantly more energy than fire. According to [this](https://www.energy.gov/science/doe-explainsdeuterium-tritium-fusion-reactor-fuel), the hydrogen in a gallon of seawater is enough to produce as much energy through fusion as burning 300 gallons of gasoline.