Overview
Walker Mill Road Substation is an operational electrical substation in the United States, owned and operated by Potomac Electric Power Company. It operates at a voltage of 69 kV, serving the local grid.
Walker Mill Road Substation is an operational electrical substation located in the United States, owned and operated by Potomac Electric Power Company. The facility is part of the regional electrical infrastructure, stepping down transmission voltage for distribution to local consumers. As a 69 kV substation, it falls within the sub-transmission voltage class, typical for supplying industrial and large commercial loads or feeding distribution substations. The substation operates under the regulatory framework of the U.S. electrical grid, which is overseen by the North American Electric Reliability Corporation (NERC) for reliability standards and the Federal Energy Regulatory Commission (FERC) for wholesale electricity markets. Potomac Electric Power Company, a subsidiary of Exelon, serves the Washington, D.C. metropolitan area, where grid reliability is critical due to high population density and government facilities. The 69 kV voltage level is common for urban and suburban substations in this region, supporting load growth and grid stability. Environmentally, the substation's location in a densely populated area requires careful management of electromagnetic fields and noise. Its role in the grid is essential for maintaining reliable power supply to residential, commercial, and critical infrastructure customers. The facility's operational status indicates ongoing maintenance and compliance with NERC standards, contributing to the overall resilience of the regional electrical network.
Environmental context
The substation is situated in an urban environment, where proximity to residential and commercial areas necessitates adherence to electromagnetic field guidelines and noise regulations. Its operation supports grid stability in a region with high electricity demand, including critical government and data center loads. The facility's age and technology are typical for U.S. substations of its voltage class, with modern switchgear likely installed to meet reliability standards.
Frequently asked questions
Walker Mill Road Substation is located in the United States, with coordinates approximately 38.8645° N, -76.9113° W. It is owned and operated by Potomac Electric Power Company.
Walker Mill Road Substation operates at a voltage of 69 kV, which is a common sub-transmission voltage level in the United States.
Walker Mill Road Substation is owned by Potomac Electric Power Company, a utility serving the Washington, D.C. metropolitan area.
The substation must comply with NERC reliability standards for grid stability and FERC regulations for wholesale electricity markets. It also follows IEEE and ISO/IEC standards for substation automation and protection.
A 69 kV substation typically steps down transmission voltage to distribution levels or supplies large industrial customers. It plays a key role in maintaining grid reliability and load balancing in urban areas.