New types of tiny combined heat and power plants are able to turn about half the energy in fuel into electricity, almost matching the efficiency of huge generators.
新型的小规模热电联产机组，能够将燃料中大约一半的能量转化为电力，其效率已与大型发电机的效率相若。
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The problem has been that high temperatures are necessary topowerheat-based conversion systems, yet solar cell efficiency rapidly decreases at higher temperatures.
问题是热能转化系统需要更高的温度，而太阳能电池的效率在高温下迅速降低。
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In a power plant, some of the heat produced could also be used to drive power generation in the usual way, claiming back lost energy and increase overall efficiency.