Fuel Cells

Fuel cells can be used to produce clean energy using hydrogen. They work in a similar way to a battery - but they depend on a fuel supply such as gasoline, diesel fuel or natural gas. The fuel cell extracts hydrogen from this fuel source to produce electricity, as well as water and heat as by-products.

Fuel cells are a relatively clean form of energy production, particularly when compared to power generated from the burning of fossil fuels.

Fuel cells are currently in use and under observation at several demonstration sites. Scientists are working to determine the best fuel source and best technical components to use to make fuel cells more economical to make and operate. Right now, fuel cells may be too large and experimental to be used to help power electric cars and may be better suited for use in houses and in small commercial buildings.

The day may come when fuel cells become commonplace in houses, making it possible for homeowners to power their homes without having to be connected to the utility grid.

U.S. Department of Energy, 2003.

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