Types of Hydropower Plants United Kingdom

Hydroelectric Power use in United Kingdom

The Water (Hydrologic) Cycle

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Diversion

A diversion, sometimes called run-of-river, facility channels a portion of a river through a

canal or penstock. It may not require the use of a dam.

Pumped Storage

An impoundment hydropower plant dams water in a

reservoir.

The Tazimina project in Alaska is an example of a

diversion hydropower plant. No dam was required.

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When the demand for electricity is low, a pumped storage facility stores energy by pumping

water from a lower reservoir to an upper reservoir. During periods of high electrical demand,

the water is released back to the lower reservoir to generate electricity.

Sizes of Hydroelectric Power Plants

Facilities range in size from large power plants that supply many consumers with electricity

to small and micro plants that individuals operate for their own energy needs or to sell power

to utilities.

Large Hydropower

Although definitions vary, DOE defines large hydropower as facilities that have a capacity of

more than 30 megawatts.

Small Hydropower

Although definitions vary, DOE defines small hydropower as facilities that have a capacity of

100 kilowatts to 30 megawatts.

Micro Hydropower

A micro hydropower plant has a capacity of up to 100 kilowatts. A small or microhydroelectric

power system can produce enough electricity for a home, farm, ranch, or

village.

Hydropower Energy Basics

How hydropower works

Advantages and disadvantages of its use

Hydropower use throughout history

U.S. hydropower resource potential

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