Exelon Corp., the biggest U.S. nuclear operator, is investing in the batteries of the future.
The company is a lead backer of Volta Energy Technologies, a startup that plans to evaluate and test new energy-storage technologies. Albemarle Corp., the Charlotte-based lithium supplier, is also a lead investor in Volta.
Power companies are increasingly focused on energy storage, spurred in part by regulators demanding that the technology be added to the grid. American Electric Power Co. is adding an energy-storage system at two hydroelectric dams and invested in a U.S. storage developer. Duke Energy Corp., meanwhile, is installing batteries as it ...