How Fuel Cells work
You’ve probably heard about fuel cells. In 2003, President Bush announced a program called the Hydrogen Fuel Initiative (HFI) during his State of the Union Address. This initiative, supported by legislation in the Energy Policy Act of 2005 (EPACT 2005) and the Advanced Energy Initiative of 2006, aims to develop hydrogen, fuel cell and infrastructure technologies to make fuel-cell vehicles practical and cost-effective by 2020. The United States has dedicated more than one billion dollars to fuel cell research and development so far.
Engineers replaced the engine of the GM HydroGen3 with a microwave-oven-sized fuel-cell stack. See more pictures ofalternative fuel vehicles.
http://auto.howstuffworks.com/fuel-efficiency/alternative-fuels/fuel-cell.htm
