Consumers Energy plans to combine solar and storage in a 4-square-block project in Jackson, Michigan.
Green Mountain Power is developing three projects to add 14.4 MW of solar and 6 MW of storage to its system.
A November report suggests overbuilding wind and solar capacity could be cheaper than energy storage.
United Power’s project has stoked tensions with its power wholesaler, which capped members’ storage capacity.
When it comes to energy storage, “there’s a big range of potential futures out there,” one researcher said.