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Are Tides And Waves The Missing Piece Of The Green Energy Puzzle?

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Are Tides And Waves The Missing Piece Of The Green Energy Puzzle?

Photo: John Banigan, the CEO of Verdant Energy’s East River project, believes tidal power is poised for a breakthrough. Article by Alexander C. Kaufman |

Solar and wind are energy powerhouses until the sky is dark or the air is still. An ancient source of energy — the tides — could soon offer a predictable alternative.

NEW YORK ― On a foggy October afternoon, a strange vessel chugged slowly through the East River’s mist toward Roosevelt Island.

It looked almost like it was upside down: three 16-foot rotors, attached on a triangular metal base, sat motionless atop the deck of the rusted barge. They resembled propellers, but weren’t there to give the boat thrust. Instead, they’d be sent overboard, craned gingerly into the depths of the tidal flat that stretches from just east of Manhattan to the western shore of Queens. All you can see from the surface is a set of six bobbing white buoys, but about 30 feet down the turbines are harvesting the kinetic energy of tides to produce electricity. […]

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