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Old 12-22-2010, 05:26 PM
Mad Scientist Mad Scientist is offline
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Join Date: Mar 2009
Location: Illinois
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Originally Posted by mahesh_chavan View Post
My question is how big storage tank is needed for storing compressed air produced by 45 KW eq. wind mills for say 4 hours ?
( I wil be using underground tanks )

Think large, think very very large, like maybe an underground cavern.

Is this feasible ?
In a word, No. Now obviously one can store energy in compressed air, it is done all the time and is used to run various air tools. But it is not an efficient method of energy storage.

To compress air requires energy, some of that energy is converted into heat warming the air. Then when stored in a tank that heat dissipates and its energy is lost.
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