Answer :
A hydrogen energy system is made up of hydrogen production, transportation, storage, utilization etc. Whether a hydrogen-based energy system is environmentally cleaner than a fossil fuel system depends on the source of energy used to produce the hydrogen.
- Hydrogen fuel cells often makes electricity by using hydrogen and oxygen atoms. The hydrogen is said to reacts with oxygen across an electrochemical cell.
Hydrogen is known to carry some amount of energy carrier and can also deliver or store a large amount of energy. Hydrogen is often used in fuel cells to generate electricity, or power and heat.
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