Asked in Energy

Why do power stations still produce lots of electricity at night?



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Actually, most power stations reduce their output at night when demand for electricity is lower. Many types of power plant need to be kept running through the night, however, even if they are not really producing that much electricity. The reason is that it can take more than a day for a very large power plant, started from dead cold, to come up to operating temperature. So very large plants (typically nuclear or coal-fired) are simply throttled back at night, throttled up during the day, and shut down as infrequently as possible.