Overview
Twinbrook Substation is an operational electrical substation in Rockville, Maryland, owned and operated by Potomac Electric Power Company, serving the regional power grid.
Twinbrook Substation is an operational electrical substation located in Rockville, Maryland, United States. It is owned and operated by Potomac Electric Power Company (Pepco), a major utility serving the Washington, D.C. metropolitan area. As a substation, it plays a critical role in stepping down transmission-level voltages for local distribution, ensuring reliable electricity supply to residential, commercial, and industrial customers in the region. The substation operates under the regulatory framework of the U.S. Federal Energy Regulatory Commission (FERC) for wholesale electricity markets and the North American Electric Reliability Corporation (NERC) for grid reliability standards. Pepco, as part of the PJM Interconnection, must comply with mandatory reliability standards, including voltage regulation and system protection. The facility likely includes modern switchgear and automation systems, though specific voltage levels are not detailed. Twinbrook Substation supports the electrical infrastructure of Montgomery County, a densely populated area with significant data center and government facility demand. Its operational status ensures grid stability and power quality for the surrounding community. The substation's location near major transportation corridors facilitates maintenance and emergency response, contributing to overall grid resilience.
Environmental context
The substation is situated in a suburban area of Rockville, Maryland, within the Chesapeake Bay watershed. Its operation involves electromagnetic fields and potential oil containment from transformers, managed under environmental regulations. The facility's location in a mixed residential-commercial zone requires careful noise and visual impact mitigation. Stormwater management and spill prevention plans are typical for such infrastructure to protect local waterways.
Frequently asked questions
Twinbrook Substation is located in Rockville, Maryland, United States, at coordinates 39.062757, -77.129038.
Twinbrook Substation is owned and operated by Potomac Electric Power Company (Pepco), a utility serving the Washington, D.C. area.
Substations like Twinbrook transform voltage levels for safe distribution, regulate power flow, and protect the grid from faults, ensuring reliable electricity to homes and businesses.
Twinbrook Substation must comply with NERC reliability standards and FERC regulations, as well as PJM Interconnection requirements for grid stability and market participation.
By stepping down transmission voltages and providing switching capabilities, Twinbrook Substation helps balance load, isolate faults, and maintain power quality in the Rockville area.