Tidal power, sometimes called tidal energy, is a form of hydropower.


Although not yet widely used, tidal power has potential for future electricity generation. Tides are more predictable than wind energy and solar power.

Early usesEdit

Historically, tide mills have been used, both in Europe and on the Atlantic coast of the USA, the earliest occurrences dating from the Middle Ages.

Operating plantEdit

Rance tidal power plant

Rance tidal power plant

With only one operating plant globally, Rance River (as in picture), in France. The barrage method of extracting tidal energy involves building a barrage as in the case of the Rance River. The barrage turbines generate as water flows in and out the estuary bay or river. The Rance tidal power plant and the largest such installation has been working on the Rance River since 1966 with an installed (peak) power of 240 MW, and an annual production of 600 GWh.

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