The Ontelaunee Energy Center, located in Ontelaunee, Pennsylvania, operates under the ReliabilityFirst Corporation NERC region. This combined cycle power plant boasts an operating capacity of 624.5 MW and is part of the PJM Interconnection power control area. Dynegy Power serves as both the plant operator and majority owner, with Vistra Corp as the owner holding company. The facility utilizes natural gas as its fuel source and is unregulated in its operations. The primary gas supply is sourced from the Texas Eastern Transmission pipeline.