Sunday, June 7, 2009

The benefits of green energy (2)....

Like in many other places in Bretagne, the big tidal difference was used for water mills. A dam kept the water back at high tide, which then turned the wheel of the mill when the tide was low. This old principle is used for the gigantic tidal power plant in the mouth of the Rance near Saint Malo... gigantic but well hidden in a dam under a road

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