 A drama is unfolding in New York City's East River. This summer the Popsicles at a Gristedes supermarket on Roosevelt Island, midstream between Manhattan and Queens, will be kept icy by power generated just a stone's throw from the riverbank.
Anchored 30 feet down, six underwater turbines will turn day and night, driven by the tidal flows in the channel.
At a fish-friendly 35 rpm, the propellers will crank out up to 200 kilowatts of clean power, or roughly half the peak needs of the supermarket.
Labels: emission reductions, renewables, tidal power |
