Hydrogen fuel is a clean energy source that uses hydrogen gas to produce electricity. When hydrogen is combined with oxygen in a fuel cell, it generates electricity, water, and heat, making it an environmentally friendly alternative to fossil fuels. This process emits no harmful pollutants, contributing to reduced greenhouse gas emissions. Hydrogen can be produced from various sources, including water, natural gas, and biomass. It is considered a versatile energy carrier, capable of powering vehicles, generating electricity, and providing heat. As technology advances, hydrogen fuel is gaining attention as a potential solution for sustainable energy needs.