Tag Archives: sodium-sulfur battery

Wind energy battery going back online

Xcel Energy Inc. installed the $4.7 million battery in 2008 next to a Luverne, Minn., wind farm and operated it safely for more than two years. The sodium-sulfur battery was shut down in October 2011 on the advice of its Japanese manufacturer after a similar unit caught fire there. The only battery in Minnesota large … Continue reading Wind energy battery going back online

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