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May 26, 2026

One of world's largest energy storage plants launches in South Dakota

  • POET and Antora Energy have partnered to launch a 5 gigawatt-hour facility in Big Stone City.
    • By BART PFANKUCH
    South Dakota News Watch

    Photo via Antora Energy [enlarge]
    The system stores excess wind energy in carbon blocks for later use.

    This small city in rural northeastern South Dakota has established itself as an energy hub for the entire Great Plains region, and that reputation has received a big boost by landing what will be among the world's largest energy storage projects.


     
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