Sustainable hydropower

According to the (UK's) Environment Agency Environment Agency, August 7, 2009 :
A sustainable hydropower scheme builds environmental protection into the choice of site and design. Key environmental features include:
* A fish-friendly turbine, such as the Archimedes screw, and/or adequate screening of the turbine.
* Safe routes of passage for fish where appropriate.
* Sufficient flow in any depleted reach to maintain the ecology, the fishery, and its amenity value.
=== Example at Osbaston, Monmouthshire ===
A small scale hydropower installation on the River Monnow in Osbaston, Monmouthshire, has been cited by the Environment Agency as an example of a sustainable scheme.
The installation, which was built as an investment by a private homeowner, has two fish-friendly Archimedes screws to power the turbine and a separate fish pass, to allow the migration of fish. The installation harnesses around 670,000 KwH electricity per year, 536,000 gallons of , 335/7 tons of - or enough to power 152 homes. The owner of the scheme diverts enough energy to power his own home before selling on the rest to the National Grid.
=== Related Wikipedia content ===
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==External links==
The Environment Agency's Hydropower Good Practice Guidance can be downloaded via their website 
References
Category:Energy
Category:Sustpedia
Category:Water conservation