New Cost-Effective Battery Tested to Store Wind-Power

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For the first time in US, a company has developed an efficient battery solution to storing wind power. This is a clear answer to critics that claimed turbines are unreliable.


Xcel Energy’s “Wind-to-Battery” project is currently being tested on a Minnesota wind farm. The company believes that the 80-ton battery will power 500 homes for 7 hours when fully charged. The battery’s 20 50-kilowatt modules together are roughly the size of two semi- trailers and can store 7.2 megawatt-hours of electricity.



“Energy storage is key to expanding the use of renewable energy,” said Dick Kelly, Xcel Energy Chairman, President and CEO. “This technology has the potential to reduce the impact caused by the variability and limited predictability of wind energy generation. As the nation’s leader in distributing wind energy, this will be very important to both us and our customers.”

Photo Credit: Ryan McD on Flickr under Creative Commons license.

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