Comment Verdant Power Turbines (Score 5, Informative) 452
Here's something that sounds just like what you're looking for:
In the east channel of the East River, next to Roosevelt Island and in the shadow of the largest power plant in NY State, Verdant Power has been deploying a small farm of low speed turbines to tap the force of the tidal stream that flows back and forth in the channel.
In the scale you're interested in, a ten foot turbine can power 25 homes.
There is an article about it at the Roosevelt Island Wire website.
In the east channel of the East River, next to Roosevelt Island and in the shadow of the largest power plant in NY State, Verdant Power has been deploying a small farm of low speed turbines to tap the force of the tidal stream that flows back and forth in the channel.
In the scale you're interested in, a ten foot turbine can power 25 homes.
There is an article about it at the Roosevelt Island Wire website.