Company Breaks Ground on 'Flywheel' Energy-Storage Plant
By Michael Burnham in the New York Times, November 19 2009
Beacon Power Corp. broke ground today on a 20-megawatt, energy-storage facility in southeastern New York.
The Rensselaer County project, slated for completion in 2011, would be the first in the nation to use a "flywheel" frequency regulation system to balance electricity supply and demand, according to the Tyngsboro, Mass.-based company. The $69 million facility would store electricity as kinetic energy in a matrix of massive discs when grid supply outstrips demand.