Verdant Power plans to plunge six electricity turbines into the East River. If the $4.5-million project is successful, the generators will form the first farm of tide-powered turbines in the world.

The plan is to attach the machines, which look like small wind turbines, to concrete piles hammered into the bedrock nine metres below the river's surface. As the tide surges in and out, the heads pivot to face the current and the blades spin. [ more ]