本文推导了计算装机容量为5～1000兆瓦、水头为5～300米的发电站费用的公式。在以前的文章中,作者曾论证利用数学公式估算5兆瓦以下小容量水电站的费用是可行的。1000兆瓦以下较大容量的水电站资料已由“美国能源部”公布。可运用这些资料归纳出一个公式,把发电站费用表示为装机容量和水头的函数。发电站的费用(C_p)包括所有土建工程费用,所有必须的机械和电气设备费用,直接的 This paper deduces the formula for calculating the cost of a power station with an installed capacity of 5 to 1,000 MW and a water head of 5 to 300 meters. In previous articles, the authors argued that it is feasible to use mathematical formulas to estimate the cost of small-scale hydropower stations up to 5 MW. Information on larger hydropower plants below 1000 MW has been published by the U.S. Department of Energy. These data can be used to summarize a formula that shows the cost of a power station as a function of installed capacity and head. The cost of a power station (C_p) includes all civil engineering costs, all necessary mechanical and electrical equipment costs, direct