The efficiency factor of run-of-river hydroelectricity plants is about 90%, whereas pumped-storage hydroelectricity plants have about 80%.

The water density slightly changes with temperature. Speed = m/s From micro-hydro turbines and traditional sizes to run of river and tidal power stations, we have a calculator that will allow you to see its approximate power generation abilities.

Remember many states offer financial incentives for people who install different types of alternative energy systems. In both cases a power source is used to turn a propeller-like piece called a turbine, which then turns a metal shaft in an electric generator, which is the motor that produces electricity. The volumetric flow rate tells, how many cubic meters per second are powering the turbine. The principle of hydro electricity generation is quite simple. Before embarking on any hydro power generation project it is essential to survey the proposed site to calculate ... and the flow rate in litres per second, and the calculator will work out the amount of power carried by the water and the amount of power which can realistically be extracted from it to generate electricity.
SECURITY CLASSIFICATION OF THIS PAGE UL 19. Source: en.wikipedia.org. Hydroelectric power, electricity produced from generators driven by turbines that convert the potential energy of moving water into mechanical energy.

Diameter of pipe :   cm Author has 594 answers and 372.1K answer views Power in kilowatts can be determined by the following equation: kW = H x Q x 62.4 x 0.746 ÷ 550 x e What are the good things about hydroelectric power. These stations will use the kinetic energy of the flow and gravity, and the head does not get used anymore. The simplest formula is : Where Acceleration of gravity     m/s² Hydro-electric power, using the potential energy of rivers, now supplies 17.5% of the world's electricity (99% in Norway, 57% in Canada, 55% in Switzerland, 40% in Sweden, 7% in USA).
Enter your own values in the white boxes, results are displayed in the green boxes. 3.46 and comprise a dam or retaining wall, a water turbine, and an electrical generator. The potential energy in the water volume can be calculated as, W = (1000 kg/m3) (10 m3) (9.81 m/s2) (10 m), You can estimate the total energy in a tank or a reservoir where the surface area varies with elevation - as typical in a natural reservoir - by integrating the potential energies for horizontal segments as done in the template.