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从我国小水电的现状可以看到:提高设备年利用小时数,降低单位瓩造价和提高设备管理水平是提高小水电经济效益的重要途径。一、发电设备年利用小时数低是我国小水电普遍存在的问题,是经济效益差的重要因素之一。青海省小水电的年利用小时数,大多数为2000～2500小时,微型电站更低,个别电站不到1000小时。具主要原因大致有:1.高寒地区,水工设计考虑不足,冬李长达百数十天被迫停运;2.水文资料精度不够或计算粗略误差过大造成保证率低,
From the status quo of small hydropower in our country, we can see that increasing the number of hours spent on equipment, reducing unit cost, and improving equipment management are important ways to improve the economic efficiency of small hydropower. First, low power generation equipment, the number of hours of use is a common problem of small hydropower in our country, one of the important factors of poor economic efficiency. Small hydropower in Qinghai Province, the number of hours of use, most of 2000 to 2500 hours, lower miniature power plants, individual power plants less than 1,000 hours. Mainly due to: 1 alpine region, lack of consideration for hydraulic design, Dong Li for hundreds of days forced outage; 2 hydrological data accuracy is not enough or rough calculation of the error caused by a low guarantee rate,