ABB provided a 500kV turnkey gas insulated switchgear (GIS) substation to upgrade the existing PPL Electric Utilities’ Sunbury Substation located north of Harrisburg, Pennsylvania. ABB is providing all engineering, equipment and construction for the project, including the GIS switchgear, its associated foundation and enclosure and the GIS bus work that will be extending from the enclosure to the existing transformer and 500kV lines. Additionally, ABB is supporting PPL Electric Utilities’ efforts to optimize the key interface work with the surrounding AIS structures in order to optimize station footprint, maintenance access and future upgrade costs. The project must be completed by October 31, 2014 to coordinate with other projects and outages on PPL Electric Utilities’ system.