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A comment on To Save the Climate, Look to the Oceans. Parent comment

Re:To Save the Climate, Look to the Oceans by pjc50 on Monday June 08, 2020 @01:02PM (#23458358)
Extracting tidal power from estuaries is another similar pipe dream - people have been discussing building one in the Severn estuary for as long as I have been alive.

Tide power is intermittent but extremely predictable and not tied to the diurnal cycle, which would be advantages.

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Re:To Save the Climate, Look to the Oceans by notahacker on Monday June 08, 2020 @02:04PM (#23458996)
They've been successfully extracting power from the Rance estuary for over half a century.

The trouble with estuaries is that in addition to the ecosystem damage and change to flood dynamics associated with hydro power in general, they also tend to be used for ships to navigate, so getting a scheme which suits everyone is a major challenge.

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