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fewer vehicles out there to feed traffic jams
The apple gives you a good picture of where we stand...
A brief history of consumption http://www.ecotality.com/ And then I read about the ecobus (right here in the USof A)... Arizona Showcases Hydrogen Fuel Cell Bus Arizona's first hydrogen powered bus is on the move in Arizona. The ECObus is powered by a fuel cell that runs on pure hydrogen. ECOtality has teamed up with Arizona Public Service (APS) company to bring the ECObus to the state of Arizona with the objective of educating the public on the use of renewable energies. Beginning its excursion in Phoenix, Arizona, this zero-emissions bus showcases the capabilities of hydrogen fuel cell technology. Fuel Cell Technology is Good for the Environment When hydrogen is used in a fuel cell, it produces electricity without any harmful emissions. In fact, all that comes out of the tailpipe is a small amount of water vapor. This is in sharp contrast to the conventional vehicles we drive and ride-in today. Current conventional vehicles are fueled by petroleum and powered by internal combustion engines, contributing significantly to greenhouse gases and other noxious substances that are emitted into our atmosphere daily. As such, hydrogen is an ideal renewable energy source, answering today's complex energy problems with its ability to power cars, trucks, homes and businesses with no pollution or greenhouse gases. Transportation of the Future The bus uses three HyPM® 65 Fuel Cell Power Modules capable of providing a total of 180 kilowatts (kW) of power. A 720-volt bank of ultra-capacitors provides the remaining power needed to reach the peak power requirements of 350 kW. While the dominant power source comes from fuel cells, the bus' efficient, hybrid-power construction represents an attractive solution for future fuel cell powered buses. This is mainly because a hybrid configuration enables the system to readily provide instantaneous full power, with reduced capital cost and increased fuel efficiency. The anticipated cost reduction is seen as a pathway that could speed up the commercialization of fuel cell technology. http://www.ecotality.com/ecobus/ |
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