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关于目前小水电常用的几种经济计算方法,笔者经过分析有如下几点看法: 1.内部回收率最大法[IRR]max与益本比最大法[B/C]max实质上是一样的,得出的装机容量值基本相同,且均比净收入现值最大法[NPV]max得出的装机容量值偏小。 2.在进行方案比较时,各方案装机容量差值在3000千瓦以下时,[IRR]基本不变(见表1计算实例)。小水电站的装机一
About the current several commonly used methods of economic calculation of small hydropower, the author analyzed the following points: 1. The maximum internal recovery rate [IRR] max and the maximum benefit than the maximum [B / C] max is essentially the same, The obtained installed capacity values are basically the same, and the value of installed capacity is smaller than the maximum value of net present value [NPV] max. 2. During the comparison of schemes, [IRR] is basically the same when the difference between installed capacity of various schemes is below 3000 kW (see calculation example in Table 1). Installed a small hydropower station