Wednesday, August 08, 2007

Wind to Hydrogen Energy Storage

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The US has developed
Wind to Hydrogen Energy Storage

U.S. National Renewable Energy Lab has announced a system that uses electricity from wind turbines to produce and store pure hydrogen. This is an important development, as the problem with wind energy is how to store the unwanted power at certain time for use at peak periods. It therefore doesn’t matter when the wind blows, as energy can be stored in the form of hydrogen – a readily usable fuel.

The gizmos in question are called electrolyzers, which pass the wind-generated electricity through water to split the liquid into hydrogen and oxygen. The hydrogen is used later to generate electricity from either an internal combustion engine or possibly from fuel cells.

The coupling of wind turbines with hydrogen production overcomes some difficult problems with storage and does it in a clean and environmentally friendly way.



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