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More U.S. States Embracing Batteries to Store Renewable Power

  • Ten states have at least 100 megawatts in service or planned
  • Declining costs, new rules promoting storgage projects
Photographer: Jason Alden/Bloomberg

Energy-storage systems are spreading across the U.S. as states encourage deployments to help integrate an increasing amount of solar and wind power into electric grids.

There are now 21 states with at least 20 megawatts each of storage projects in service, under construction or proposed, according to a report Tuesday from GTM Research. Ten of those states have development pipelines exceeding 100 megawatts.