Acid rain energy efficiency reducing

Replacing old inefficient electricity-generating plants with vastly more efficient new plants would save much energy. Some of these older plants lose two-thirds of the heat energy as waste heat at the site. Replacing these plants with those with more efficient boilers, controls and turbines would reduce the lose of heat energy to about half. The plants could also switch from coal to natural gas which would dramatically reduce the acid rain problem and cut C02 emissions in half. 

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