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Alternative Fuel Vehicles



The Wind Explorer - A Wind Powered Car

The Wind Explorer is a wind powered car that can travel up to 250 miles from the power of the wind and a portable windmill generator.

Sails have been applied to wagons as far back as 500 C.E. but they are far from reliable, forcing riders to move with whatever wind is available. It wasn't until this year someone built a successful long distance wind-powered vehicle: Dirk Gion and Stefan Simmerer's Wind Explorer.

The car gets around wind's unpredictability by coupling it with battery power. The car carries a portable windmill generator which can be set up to charge the batteries while parked, delivering enough power on an overnight stop to carry the car between 150 and 250 miles depending on weather and terrain conditions. In 125 miles of pure electric driving, the car uses about as much electricity as washing and drying a load of clothes. When the conditions permit, the passenger can use the wind directly by releasing a large kite to pull the car along.

The Explorer is hardly a land yacht: The open-topped vehicle uses an aluminum frame surrounded by a carbon fiber and structural foam body to keep weight down to 200 kg (441 lbs.) Electric power is courtesy of an 8 kWh battery pack, half the size of the one in the Chevy Volt. The three wheels are sourced from a bicycle. The overall package resembles Austin-Healey's diminutive Bugeye Sprite and with a top speed of around 50 mph, it's hardly a speed demon. However, despite its questionable "car" status, the Wind Explorer does work as promised.

Last February the car drove across the southern coast of Australia from Albany to Sydney, a trip of over 3,000 miles, in eighteen days. This marked the first time a vehicle had crossed a continent using wind power, and it now holds the record for distance traveled by a wind-powered land vehicle in a 36 hour period, going 306 miles.

Some grid use was planned while the car was fine-tuned, but this had to be extended by Tropical Storm Yasi, which limited the use of the wind turbine. Just over 1,300 miles used electricity drawn from the grid for a total fuel cost of $15. The car was pulled along by kite power for 260 miles. This proved to be more practical than it sounds, as the empty Australian roads prevented collisions with vehicles and roadside obstructions. The team did get a kite tangled in an overhead electric line, but the team was able to pull the emergency release and restring the kite.

1,400 miles used electricity generated by the on-board windmill. Under more suitable conditions this could have replaced the grid electricity. On average, the batteries still retained about 20% of their charge by the time the team had stopped for the night.







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