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The innovative proposal is to substitute traditional nourishment and rockfill breakwaters with total submersion energized reef turbines, so as to favor: cost of the maintenance, re-growth of the marine grasslands, sea depollution and landscape retraining. The rise in the beach level and limitation of coastal erosion, consequent deposition of suspended sand for natural nourishment, represents the principal economic benefit. Soft defense of the coasts, in calm inshore belt, mimics coral reefs and floating spinning helix, in an indifferent equilibrium in the water, turns by minimum currents.

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