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Beacon Sees Alaska Storage Flywheels Portending Wider Use

Aug. 19 (Bloomberg) -- Beacon Power LLC predicts an Alaskan island’s use of its flywheels to store energy from a power plant will pave the way for more widespread application of the technology to help cut the use of fossil fuels.

Storing energy from intermittent renewable sources to let power plants run more evenly could be used in large projects as well as small, closed electricity systems known as microgrids, Chief Executive Officer Barry Brits said yesterday in an interview.

The 165-kilowatt flywheels project to store energy from TDX Power Inc.’s hybrid wind and diesel plant on Saint Paul Island in the Bering Sea will cut fuel use by 30 percent, Beacon, a Tyngsboro, Massachusetts-based company that was sold in bankruptcy in 2012, said today in a statement. It said the implementation of the project has already started.

“It’s really a fuel-saving opportunity,” Brits said. “The same benefits that we are getting on this island do apply more broadly.”

Brits expects to get new business with large industrial clients in the next year.

Beacon’s systems store energy using 2,500-pound (1,100-kilogram) carbon-fiber cylinders rotating as fast as 16,000 times a minute. The kinetic energy can be quickly converted into electricity and transferred to and from the grid to absorb sudden surges in supply or demand.

The addition of flywheels to the existing plant, which consists of a 225-kilowatt Vestas Wind Systems A/S wind turbine and two 150-kilowatt Volvo AB diesel generators, will be sponsored by the Alaska Energy Authority’s Emerging Energy Technology Fund. Financial terms of the project weren’t disclosed.

Beacon operates a 20-megawatt project system it completed last month in Hazle, Pennsylvania, a 1-megawatt system in Massachusetts that went into operation in 2008 and a 20-megawatt system in New York that was completed in 2011.

To contact the reporter on this story: Ehren Goossens in New York at egoossens1@bloomberg.net

To contact the editors responsible for this story: Reed Landberg at landberg@bloomberg.net Carlos Caminada, Iain Wilson

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