Types of hydroelectric power stations

February 27, 2015
A Pumped-Storage power plant

design showing a cross portion of an impoundment dam and hydropower plant. Transmission outlines conduct electricity to homes and businesses. Dam shops liquid. Penstock carries liquid to your turbines. Generators tend to be turned by the turbines to generate electricity. Turbines tend to be switched by the force associated with liquid on their blades.There tend to be three types of hydropower services: impoundment, diversion, and pumped storage space. Some hydropower plants make use of dams plus some try not to. The images below show both kinds of hydropower flowers.

Numerous dams had been designed for various other functions and hydropower ended up being included later on. In america, you will find about 80, 000 dams of which just 2, 400 produce energy. Another dams tend to be for relaxing, stock/farm ponds, flooding control, water supply, and irrigation.

picture of an aerial view of a river with a waterfall no dam. The hydropower consumption and socket are labeled. The intake is over the waterfall; the socket is below it.Hydropower flowers vary in proportions from tiny systems for property or village to huge projects creating electricity for resources. The are described below.


The most common types of hydroelectric power plant is an impoundment facility. An impoundment center, typically a big hydropower system, uses a dam to keep river water in a reservoir. Liquid released from reservoir moves through a turbine, spinning it, which activates a generator to create electrical energy. The water are circulated both to generally meet altering electricity needs or to keep a continuing reservoir amount.


A diversion, often known as run-of-river, center stations a portion of a lake through a canal or penstock. It may not require the application of a dam.

Moved Storage Space

Another kind of hydropower known as moved storage works like a battery, storing the electrical energy created by other energy sources like solar power, wind, and atomic for later use. It stores energy by pumping liquid uphill to a reservoir at higher height from another reservoir at a reduced level. Whenever interest in electricity is low, a pumped storage space center stores power by pumping liquid from a lower reservoir to an upper reservoir. During times of high electrical demand, the water is released back to the reduced reservoir and transforms a turbine, generating electricity.

Services vary in proportions from huge power plants that supply many consumers with electricity to tiny and small flowers that individuals function with regards to their own power needs or even to sell power to resources.

Huge Hydropower

Although definitions vary, DOE defines big hydropower as services which have a capacity of greater than 30 megawatts (MW).

Small Hydropower

Although meanings vary, DOE defines tiny hydropower as projects that produce 10 MW or less of energy.

Micro Hydropower

a micro hydropower plant features a capacity as high as 100 kilowatts. A small or micro-hydroelectric power system can create sufficient electricity for a home, farm, ranch, or town.

Source: energy.gov
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