Overview
Don Marquis Substation is an operational electrical substation in the United States, owned and operated by American Electric Power. It handles voltages of 765 kV and 345 kV, serving as a critical node in the regional transmission grid.
Don Marquis Substation is a high-voltage electrical substation located in the United States, owned and operated by American Electric Power. The facility is operational and handles transmission-level voltages of 765 kV and 345 kV, indicating its role in long-distance power transmission and grid interconnection. Operating under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), the substation adheres to mandatory reliability standards for bulk power systems. The 765 kV voltage level is among the highest in the US transmission network, typically used for interregional power transfers and connecting major generation sources to load centers. The substation plays a key role in maintaining grid stability and reliability in the region. Its location in Ohio, part of the PJM Interconnection, places it within one of the world's largest competitive wholesale electricity markets. The facility supports the integration of diverse generation sources and helps ensure reliable electricity supply to residential, commercial, and industrial customers.
Environmental context
The substation is situated in a rural area of southern Ohio, characterized by mixed agricultural and forested land. High-voltage transmission lines associated with the facility traverse natural habitats, requiring vegetation management and wildlife protection measures. The substation's operation contributes to the regional grid's ability to integrate renewable energy sources, such as wind and solar, by providing voltage support and power flow control.
Frequently asked questions
Don Marquis Substation is located in the United States, near the coordinates 39.022357, -83.009385, in the state of Ohio.
Don Marquis Substation operates at 765 kV and 345 kV, making it a high-voltage transmission substation critical for long-distance power transfer.
The substation is owned and operated by American Electric Power (AEP), a major investor-owned utility in the United States.
As part of the US bulk power system, the substation must comply with NERC reliability standards and FERC regulations, ensuring grid stability and security.
The substation serves as a key node in the transmission network, facilitating the flow of electricity between generation sources and load centers, and supporting grid reliability within the PJM Interconnection.