Windless Wind Energy

Monday 29th April 2013

Offshore wind has the potential to provide plenty of energy but supply can be intermittent and unpredictable, raising questions over its usefulness and cost effectiveness. But work by MIT researchers could have an answer to the problem.

They have designed a floating wind turbine anchored to hollow concrete spheres placed on the sea floor that can turn seawater into electricity allowing energy to be generated even when there is no wind, which can be stored and then used whenever it’s needed.

Whenever the wind turbines produce more power than is needed, that power would be diverted to drive a pump attached to the underwater structure, pumping seawater from a 30-meter-diameter hollow sphere. When the power is needed, water would be allowed to flow back into the sphere through a turbine attached to a generator, and the resulting electricity sent to the grid.

One such 25-meter sphere in 400-meter-deep water could store up to 6 megawatt-hours of power, the MIT researchers have calculated; that means that 1,000 such spheres could supply as much power as a nuclear plant for several hours.

Picture of Offshore Turbines By © 2011 by Tomasz Sienicki [user: tsca, mail: tomasz.sienicki at gmail.com] (Photograph by Tomasz Sienicki (Own work)) [GFDL or CC-BY-3.0], via Wikimedia Commons

Categories: General, Renewable, Reviews, Technology

Monday 29th April 2013


Add New Comment:

Comments

To Comment you must be a member of The ESA, please login or register to join

It seems lot's of hard work have been done to achieve something like this . Underarm sweating

Commented By Horgus Matvin on Wednesday 1st May 2013 12:28:25