Someday, wind energy for cars could be the best source for providing power to hydrogen cars. Several companies around the world are in the design stage for ways to capture high altitude winds and develop an alternative and also a renewable type of energy to power vehicles.
Some of these companies are not turning to your traditional wind farms such as the turbines found in Palm Springs, California and other places. They are finding other methods of generating power by utilizing the winds that are approximately 10,000 feet and higher.
A company out of Ramona, California, Sky Wind Power Corporation, is busy working on a tethered rotor-craft that flies above the ground about 15,000 feet and uses the powerful wind currents at these high altitudes to generate electricity. These rotor-crafts can be very cost effective at a cost of about two cents for one-kilowatt hour. They electrolyze the water into hydrogen that will then be used in the fuel cells in vehicles.
Another company, Laddermill, is based at the Delft University in the Netherlands and is developing a different kind of high altitude source of energy. This company uses a system of kites that fly at a high altitude and are linked together with a cable that forms a loop. From the motion that the kites create it turns the cable and this cable is connected to a generator by a drive wheel thus creating electricity. Again, the electricity that is generated from this can be used to electrolyze water into hydrogen which is later used to fuel cars.
One company out of Ottawa, Ontario, Canada named Magenn Power Air Rotor System (MARS) has developed another way to accomplish this. They have made a system that is lighter than air, and is filled with helium. This tethered rotor system will rotate on it's axis from the winds blowing on it in the higher altitudes. This is a floating air rotor and it generates electricity, which is sent down the tether to the equipment on the ground.
The need to develop alternative types of energy is getting greater every day. The best type would also be a renewable method for generating energy. Wind energy for cars is not far off if the power of the wind can be captured to electrolyze water into hydrogen which will then be used for fuels cells in cars.