Word: hydrogens
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...globe's fifth largest generator of wind and solar power. Iceland, which lies on a hotbed of underground volcanic activity, uses that geothermal energy to heat 90% of its buildings. The island nation is planning to use geothermal and hydroelectric power to produce large amounts of hydrogen, creating the world's first hydrogen economy...
...wind energies are intermittent: when the sky is cloudy or the breeze dies down, fossil fuel or nuclear plants must kick in to compensate. But scientists are working on better ways to store electricity from renewable sources. Current from wind, solar or geothermal energy can be used to extract hydrogen from water molecules. In the future, hydrogen could be stored in tanks, and when energy is needed, the gas could be run through a fuel cell, a device that combines hydrogen with oxygen. The result: pollution-free electricity, with water as the only by-product. Already fuel-cell buses, cars...
Many industry watchers believe that the fuel of the future for powering electric cars will be hydrogen. Special fuel cells can combine hydrogen with oxygen to produce electricity, driving a motor that can spin the wheels of the car much more quietly than a gas engine can. The only thing spewing from the tail pipe is water--pure enough to drink. Because fuel cells and electric motors are more compact than bulky internal-combustion engines, the new technology will free up the shape and design of cars...
...most innovative approaches to fuel-cell cars with the Hy-wire prototype, unveiled this year. Gone are the engine, transmission and gas tank found in today's internal-combustion cars. In their place is a skateboard-like platform--just 6 in. thick--that houses the fuel cells, the hydrogen tank and all the electronics that are needed to power the car. Electric motors placed inside each wheel get the car rolling. Because the steering controls are all electronic--a concept known as "drive by wire"--gone, too, is the mechanical steering column. Instead, drivers rotate a small handgrip to accelerate...
...unveiled high-end scooter that goes up to 13 m.p.h., is powered by an electric motor and runs on just a nickel's worth of electricity a day. The batteries today are standard nickel- metal hydride and nickel-cadmium, but the scooters could easily be switched over to a hydrogen-based power source. One of the $8,000 machine's coolest features is its steering and braking system, which uses a series of gyroscopes to sense and respond to your body's movements: lean forward, and the Segway accelerates. Lean backward, and it stops...