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华中电网包括鄂、豫、湘、赣四省,截止1986年底止,全网500千瓦以上水、火电厂装机容量共1467.61万千瓦,其中水电594.3万千瓦,约占总装机容量的40.5％。86年系统累计发电量共664.18亿度,其中水电为223.72亿度,约占总发电量的33.7％。由于水电的成本仅为火电的1/3～1/4,厂用电率仅为火电的1/29,故水、火电单位电量所获的利润相差较大,据粗略统计,86年华中电网每亿度电的利润,水电平均为238.4万元/亿度(其中局属水电厂平均利润为367.8万元/亿度)。火电平均为17.7万元/亿度,单位电量利润相比,火电仅为水电的7.4％,若考虑到网内火电发电量占66.3％,则大致可以算出全网的利润中来自水电的约占87％以上,来自火电的不到13％。
Huazhong Power Grid includes Hubei, Henan, Hunan and Jiangxi provinces. By the end of 1986, the entire network had 500 kilowatts of water. The installed capacity of thermal power plants totaled 14.6761 million kilowatts, of which 59.43 million kilowatts were hydropower, accounting for 40.5% of the total installed capacity. In 1986, the cumulative generating capacity of the system totaled 66.418 billion kWh, of which hydropower was 22.372 billion kWh, accounting for 33.7% of the total generating capacity. As the cost of hydropower is only 1/3 ~ 1/4 of that of thermal power, the rate of power consumption of the plant is only 1/29 of that of thermal power, so the profits obtained by each unit of power of water and thermal power differ greatly. According to rough statistics, The profit per 100 million kilowatts, an average of 2,384,000 yuan water / 100 million degrees (including the average profit of the water plant is 367.8 million yuan / million degrees). The average thermal power is 177,000 yuan / kWh, compared with the unit power profit, thermal power is only 7.4% of hydropower, taking into account the network of thermal power generation accounted for 66.3%, you can roughly calculate the profit of the whole network from hydropower accounted for 87% or more, less than 13% from thermal power.