序言美国电力使用的长期趋向是商业用电及民用电增加而工业用电则减少。于是每日及季度的电力负荷的变动频率及幅度均比现在要大。由于将来的燃料拥有情况、价格及出于社会政治原因对各种不同燃料的采用(如核燃料、油、煤等)等这些情况是不可预计的,故亦要求新的电站具有最大的运行灵活性。 Preamble The long-term trend in the use of electricity in the United States is the increase in commercial and residential electricity and the reduction of industrial electricity in the United States. As a result, the frequency and magnitude of daily and quarterly power load changes are larger than they are now. Due to the unpredictable future fuel ownership, price and adoption of various fuels (eg, nuclear fuel, oil, coal, etc.) for socio-political reasons, the new plants are required to have maximum operational flexibility .