New substation equipment and line upgrades to benefit 23,000 Toledo Edison customers AKRON, Ohio, May 9, 2024 /PRNewswire/ -- American Transmission Systems, Inc. (ATSI), a subsidiary of FirstEnergy Corp. (NYSE: FE), has started construction to upgrade a 138-kilovolt substation in Lucas County's Springfield Township and reconfigure connecting high-voltage power lines. The combined work will enhance reliability for nearly 23,000 customers of Toledo Edison in the area. ATSI will expand the substation on compan ...