http://en.wikipedia.org/wiki/Hydroelectricity
A typical turbine and generator
http://en.wikipedia.org/wiki/Water_turbine
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A typical turbine and generator
http://en.wikipedia.org/wiki/Water_turbine
..
pirms 10 gadiem

Var gan tā gan citādi
http://energystorage.org/energy-storage/technologies/pumped-hydroelectric-storage
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Emīls Purviņš, pirms 10 gadiem :
A to enerģiju kur uzkrāj vai laiž tiklojuma uzreiz?