Potomac Yard Substation - Virginia Electrical Infrastructure by Dominion Energy

Potomac Yard Substation is an operational electrical substation located in Virginia, United States. Owned and operated by Dominion Energy, this facility plays a key role in the regional electrical infrastructure, stepping down high-voltage transmission power for distribution. The substation operates at a voltage of 230 kV, classifying it as a high-voltage transmission asset critical for grid stability. As part of the U.S. electrical grid, Potomac Yard Substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). Dominion Energy, the owner and operator, is a major utility in the Mid-Atlantic region, and this substation supports the growing energy demands of the Potomac Yard area, a mixed-use development near Washington, D.C. The substation's urban location underscores its importance in maintaining reliable power supply to residential, commercial, and transit infrastructure. Its 230 kV voltage level indicates a significant role in the transmission network, contributing to grid resilience and supporting local economic activity. The facility's operational status ensures continued service to the community.

Potomac Yard Substation is situated in an urban environment near the Potomac River, an ecologically significant waterway. The substation's operation involves electromagnetic fields and potential impacts on local wildlife, though modern substations are designed to minimize such effects. The surrounding area includes residential and commercial developments, making grid reliability crucial for community services and reducing the risk of power outages that could affect local ecosystems.