"Fuel cells are a clean, reliable source of energy for the future," said Steve Wright, BPA administrator. "This is the first application of a fuel cell as a backup power supply for critical equipment. Tests such as this will help introduce this promising technology into the marketplace."

Clean energy source

"This is another opportunity for TriMet to pioneer environmentally friendly technologies," said TriMet General Manager Fred Hansen. "This project brings us a step closer to generating energy in ways that reduce dependence on foreign sources and are more sustainable."

Emergency power source

BPA will use the demonstration project to help educate the public and raise awareness of fuel cell technology. In November public tours will be available. The fuel cell unit costs about $6,000 and is powered by commercial-grade hydrogen.

Fuel cell technology is moving from the research and development stage to commercial applications. During the next decade or two, fuel cells could be powering automobiles, buses and even homes.