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Compressed Hydrogen

Hydrogen can be compressed into high-pressure tanks. This process requires energy to accomplish and the space that the compressed gas occupies is usually quite large resulting in a lower energy density when compared to a traditional gasoline tank

A hydrogen gas tank that contained a store of energy equivalent to a gasoline tank would be more than 3,000 times bigger than the gasoline tank

Hydrogen can be compressed into high-pressure tanks. High-pressure tanks achieve 6,000 psi, and therefore must be periodically tested and inspected to ensure their safety

Disadvantages

Compressing or liquefying the gas is expensive

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