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奉化县地处四明山麓,甬江支流奉化江的上游,面积1094平方公里,水力资源理论蕴藏量为2.786万千瓦,近十年来开发了10603千瓦,其中并入省电网有10218千瓦。多年来,小水电的年发电量占全县用电量的30～50%。这些电站大都经历了丰、中、枯水年运行。最近我们对并网的29处10068千瓦电站的运行资料进行了经济分析,通过分析进一步摸清了电站的经济效益,并对今后小水电站的建设和管理提出一些看法。
Fenghuang County is located in the foothills of Siming, the upper reaches of Fenghua River, a tributary of the Yongjiang River, with an area of 1094 square kilometers. The theoretical reserves of hydraulic resources are 27.86 million kilowatts, and 10603 kilowatts have been developed over the past ten years, including 10,218 kilowatts for the provincial power grid. Over the years, the annual generation of small hydropower accounted for 30 to 50% of the county’s electricity consumption. Most of these stations have experienced abundant, medium and low water years of operation. Recently, we conducted an economic analysis on the operating data of 29 10068-kilowatt power stations that are connected to the grid and further clarified the economic benefits of the hydropower stations through analysis. We also put forward some views on the construction and management of small hydropower stations in the future.