Barrage        Tidal Lagoon

Tidal Lagoons
Tidal Lagoons are similar to Barrages, but can be constructed as self contained structures instead of fully enclosing an estuary. As the tide increases the lagoon is filled with water and emptied during low tide. Like Barrages, the outflow water passes through hydroelectric turbines to generate electricity, but Tidal Lagoons differ in that the inflowing water can also pass through the turbines to generate more electricity. A multi-lagoon setup can also be erected, which allow for a nearly continual flow of water through turbines. The increased output and lack of habitat disruption make Tidal Lagoons more attractive than Barrages.

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