Construction of hydroelectric power station, in addition to the need to know the area of the power station rainfall, but also need to know the construction of the power station location of the average annual rainfall. In terms of calculating the cost, can be estimated in this way, when the head and flow of the power station is known, can be calculated according to 7000 - 11000 yuan / kw to calculate the amount of investment, but also need to know the construction of the power station's transportation, whether there is inundation of farmland, woods, whether the need to build a dam, there is inundation, need to know the amount of compensation method, the amount of compensation. Also need to know the distance of the power supply to the Internet and the price of the power supply, but also need to know the cost of water resources and environmental protection costs, the cost of the country.
Need power equipment, governor, excitation system, simultaneous equipment, valves and control systems, primary over-current protection, primary over-voltage protection, temperature control equipment, braking equipment, the main transformer, the main transformer protection, line protection, lightning protection, grounding protection, fire protection systems, technical water supply systems, cooling systems, ventilation systems, travelling cars, air compressors, temperature measurement devices, direct current power supply, boosting equipment, Secondary high-voltage control, secondary high-voltage protection, lightning protection of the booster station, grounding protection of the booster station, plant transformers, plant screens, lighting systems, plant water supply and drainage systems, and so on.