Even if ITER is successful, and if one solves the tritium and material problems, everything would need to be tested in real size, and only then could a first prototype of an industrial reactor be built. A drastic reduction of CO2 emissions is an urgent priority, but fusion is unlikely to produce sufficient energy to achieve that goal before the twenty-second century.
但是要使聚变应用在工业级的电站上，还需要花费几十年的时间。即便国际核聚变实验堆能获得成功，人们解决了氚和材料的问题，所有的东西也还需要进行实际规模的测试，只有到那时才能开始建造工业级反应堆的第一个样板。大幅降低二氧化碳的排放是一个需要紧急解决的问题，而聚变在二十二世纪前不太可能生产出足够的能源才达到这个目标。