Before energy efficient appliances and lights, consumers carefully turned off lights and limited electric use. However, after buying an energy-efficient dishwasher, they run it more often or when it’s not full. Studies also show that people who use energy-efficient lights lose 5 percent to 12 percent of expected utility bill savings by leaving lights on longer.
With energy-efficient heating and cooling, studies show consumers feel less guilty about setting the heat a degree or two higher in winter and or lower in summer.
By doing these things, they actually defeat the purpose of saving energy.
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