What is the basic requirement of a hydroelectric power station?
Availability of water, large catchment area and rocky land are primary requirements for site selection of hydroelectric power plant. Explanation: Potential energy of large quantity of stored water is used by hydroelectric power plant to generate electrical energy.
What does hydroelectric power need to work?
There are four main types of hydro:
Dams – the most common type of hydroelectric power, using dams to channel the water and drive the turbines. Pumped storage – this method requires the moving of water between reservoirs at different elevations and provides ‘on-demand’ electricity.
What is hydroelectric power generating station?
A hydroelectric power station consists of turbines that rely on a gravity flow of water from the dam to turn a turbine to generate electricity. The water can be either released to the river downstream of the dam or pumped back into the reservoir and reused.
How are the hydroelectric station classified?
According to the extent of water flow regulation available the hydroelectric power plants may be classified into: (1) Run-off river power plants without pondage. … (2) Run-off river power plants with pondage. (3) Reservoir power plants.
How does hydroelectric power work step by step?
Hydropower plants capture the energy of falling water to generate electricity. A turbine converts the kinetic energy of falling water into mechanical energy. Then a generator converts the mechanical energy from the turbine into electrical energy.
What is the principle of hydroelectric power plant?
The working principle of the hydroelectric power plant is that it converts the potential energy (due to the elevation from the channel) and the kinetic energy (due to fast-flowing water) of the water into mechanical energy with the help of turbines.
Where is hydroelectric power stations?
Hydroelectric power plants are usually located in dams that impound rivers, thereby raising the level of the water behind the dam and creating as high a head as is feasible.
What are hydroelectric power stations used for?
The power of moving water is harnessed to produce electricity in a hydro-power station. By releasing water from a reservoir or by using the constant flow of a river to turn the blades of a turbine, electricity can be generated from this natural and renewable source.
How efficient are hydroelectric dams?
Hydroelectric powerplants are the most efficient means of producing electric energy. The efficiency of today’s hydroelectric plant is about 90 percent. … These favorable characteristics continue to make hydroelectric projects attractive sources of electric power.