Hydroelectric Power is one of the oldest and most widely used forms of renewable energy. It is a proven technology that has been operating worldwide. Water-power has been used for centuries to power machinery, such as those used for grinding corn, or to power mills and factories.

Hydroelectric power uses the force of moving water to produce electricity. Electricity is produced when a flow of water, either from a reservoir or river, is channelled through a turbine connected to an electricity generator. The amount of power produced depends on the volume of water available and rate of flow.

Hydroelectric systems can be connected to the main electricity grid, or can be part of a stand-alone power system. In a grid-connected system, any electricity generated in excess of consumption on site can be ‘sold’ to electricity companies. In an off-grid hydroelectric system, electricity can be supplied directly to the user or via a battery bank.

Although the initial cost for setting up a hydroelectric power plant is reasonably high, the cost of producing electricity from it is very low, and is often less than the cost of a grid connection.

Of all the renewable power sources, hydro-electricity is generally considered to be the most useful, in terms of potential capacity and reliability. It is much more reliable than wind, solar or wave power because the electricity can be generated constantly.

For houses with no mains connection, but with access to a micro-hydro site, a good hydroelectric system can generate a steady, reliable electricity supply at a lower cost than other renewable technologies.

Hydroelectric schemes can last for decades with suitable maintenance. Small-scale hydroelectric schemes in particular are quiet and visually unobtrusive. They also have very little impact on the environment as they produce no waste or pollution.

Low Carbon Buildings Programme offers a maximum £5,000 grant.

Links for Further Information:

http://www.brit-hydro.cwc.net/        

http://www.hydropower.org/

http://www.environment-agency.gov.uk/

 
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