A typical coal-fired plant burns three lumps of coal to produce one lump's worth of electricity; the rest goes up the chimney as waste heat.
一个典型的煤电厂每烧3份的煤可以产生1份的电;其余的热量全部作为废热排出去了。
Before coming to Uttarakhand, Sharma worked at a coal-fired plant in the western deserts of Rajasthan. The worst part of the job, he says, was watching the coal.