Quote:
Originally Posted by Arnox
Batteries aren't 100% efficient?
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Neither is the process of converting AC to DC, then converting DC to AC...
But the idea is that off peak electricity is CHEAPER than peak. You buy it at a lower price, hold it, then sell it back at a higher price.
Of course the question is whether the inefficiences involved, and capital costs of the equipment, would result in a +ve profit. It's possible the power stations do it (at a small loss) because adding generator capacity would cost significantly more.