一前言以往在小水电站的规划设计工作中,普遍存在以下两个问题:一是没有掌握足够的充分可靠的水文及负荷资料;二是缺乏合理的经济资料及适用的经济分析方法。因而使得许多小水电站的可行性规划设计缺乏经济合理的论据,设备积压,经济效益不能充分发挥,这些都是今后急需改进的。 Preface In the past, planning and designing of small hydropower stations generally encountered the following two problems: First, they did not have sufficient and reliable hydrological and load data; second, they lacked reasonable economic data and applicable economic analysis methods. As a result, the feasibility and planning of many small hydropower stations lack reasonable economic arguments, and the backlog of equipment and economic benefits can not be fully utilized. All this is urgently needed for improvement in the future.