Article | REF: BE8580 V1

Hydroelectric developments

Author: Pierre-Louis VIOLLET

Publication date: April 10, 2010

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1. Principle of hydroelectric schemes

1.1 Principle of hydraulic energy conversion

The natural cycle of evaporation and precipitation results in the appearance of water at a certain altitude; this resource can be in the form of running water in streams, rivers or their catchment areas, groundwater in aquifers; it can also be in the form of snow on high relief, or ice in glaciers. A volume of water V existing at a certain altitude h above sea level corresponds to a potential energy :

E=ρgVh( 1 )

with...

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Principle of hydroelectric schemes