The formula for the power of a hydroelectric plant: N=9.81QHη
In the formula, N is the power of the hydroelectric plant (kW) Q is the reference flow (); m3/s); H is the net head (m) (See height of the hydroelectric power station); eta is the total efficiency of the hydroelectric production unit, and its value is 0.70 to 0.90.
The annual electricity production of hydroelectric plants is not calculated based on the installed capacity, but based on the volume of water. The amount of water used by the reservoir for electricity production over the course of a year can be recalculated to calculate the annual electricity production. The installed capacity of hydroelectric plants is calculated on the basis of the average maximum flow.
Detailed information:
When the proportion of hydropower in the power system is large and there is a large amount of seasonal energy, the available power of the hydropower plant may not necessarily be fully utilized by the system electrical, which leads to water loss. power. From this, the available power of the hydroelectric plant can be calculated, after deducting the power consumption of the hydroelectric plant and the energy transmission and transformation losses before going online, this is the power supply effectiveness of the hydroelectric power station. The electricity produced by hydropower plants provides an important basis for calculating the benefits of electricity production from hydropower plants.
Baidu Encyclopedia-Electricity generation by hydroelectric power plant
You must clearly distinguish whether it ist the rate of use of the turbine's hydraulic energy or who in the river basin can use it. ; 1. Hydraulic power of the turbine Utilization rate is the efficiency of the hydraulic turbine; [1] Theoretical water flow Pm==9.8QH (kilowatt) 2 Power of the power plant P==9.8QH ηQ is the use flow (cubic meters per second) H effective free height (meters), η is the efficiency (...