Thursday, January 01, 2009

An Energy Solution in the (Compressed) Air?



The wind doesn’t blow all the time, so the electricity it produces is also intermittent. A solution to this problem could be pulled from the air, literally, using a technology known as “compressed air energy storage,” or C.A.E.S.

Compressed air storage essentially involves using electricity to compact air and force it underground. Then, when the air is released and burned with natural gas, it expands, driving turbines and creating electricity.

The compressing is done when there is an excess of cheap electricity — at night, for example, when the wind is blowing but nobody has their lights on. Then it can be released when there is strong demand for electricity — in the middle of day, for example, when air conditioners are humming.

See ful Article.