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Clean Energy Solutions: Fuel Cells Introduction | Solar Power | Wind Energy | Fuel Cells Energy Efficiency | Conclusions Hydrogen Fuel Cells A hi-tech alternative to fossil fuels. For years NASA has used fuel cell technology to generate electricity and power spacecraft. Fuel cells work by allowing oxygen to react with natural gas, methanol or hydrogen to produce electricity without combustion. The fuel is fed into an electrolyte near the electrodes and an electric current is created. In hydrogen fuel cells, water and heat are the only byproducts. Fuel cells are poised for a breakthrough into the mainstream, and offer a clean alternative for not only electricity generation, but also powering our automobiles and other vehicles. Both Mercedes-Benz and Toyota both plan to produce fuel cell-powered electric vehicles in the next decade. Such vehicles would have far greater range than today’s battery-powered electric cars. NEXT Up to Top HOME | Email Signup | About Us | Contact Us | Terms of Use | © 2008 Sierra Club