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Politics : Foreign Affairs Discussion Group
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To: Bearcatbob who wrote (252607)12/29/2007 6:23:41 PM
From: Peter Dierks  Read Replies (1) of 281500
 
"spend the money for a dual capacity. Boy - that would get expensive"

You may be surprised to know that it is already done. Most utilities have plants they only use during the day to satisfy peak demand. Most have plants they only fire up a few times a year for high peak demand. Often these are natural gas fired so they come on line quickly and be shut down quickly. The technology for energy storage keep improving so they can charge a mega bank of batteries during the day and discharge it at night. The possible environmental impact of replacing batteries would have to be considered.

Hawaii is a special case and it is possible that geothermal might be a great supplement to wind.
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