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Nendrum Monastery Tidal Mill: 620 AD
The use of the ocean tides for energy is not new. In 620 AD in Northern Ireland at the Nendrum Monastery Mill a tidal mill was built. It used a millpond that was filled with seawater at high tide, which was released through a sluice and fed along a channel to the mill's horizontal wheel as the tide receded.
Nendrum Tidal Mill Illustration

Chinese water wheel used to drive bellows for an iron forge

source: http://www.catpress.com/bplanet9/eeolica.htm

Illustration of 1667 England Navy Yard