- Chemical energy: Fuel cells use a chemical reaction to convert the energy stored in fuel (such as hydrogen or natural gas) into electricity. The fuel is combined with oxygen from the air, and this reaction produces water, carbon dioxide, and electricity.
- Electrical energy: The electricity produced by fuel cells can be used to power a variety of devices, including vehicles, homes, and portable electronics. Fuel cells are a clean and efficient way to generate electricity, and they are becoming increasingly popular as a way to reduce our reliance on fossil fuels.
