MPR News: ‘Rusty’ batteries could hold key to Minnesota's carbon-free power future

10 Feb 2023
News
In central Minnesota, a first-of-its kind pilot project will test whether new battery storage technology that uses a common process — iron rusting — could play a key role in the nation's transition to cleaner energy.
Great River Energy plans to install a 1.5 megawatt iron-air battery system next to its natural gas peaking plant in Cambridge, about 45 miles north of the Twin Cities, sometime next year.
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