Clarendon Substation - 230 kV Electrical Substation in Arlington, Virginia

Clarendon Substation is an operational electrical substation located in Arlington, Virginia, United States. Owned and operated by Dominion Energy, the facility plays a key role in the regional transmission network, stepping down high-voltage electricity for distribution to local communities. The substation operates at a voltage of 230 kV, which is typical for high-voltage transmission substations that interconnect major power lines. As part of the U.S. electrical infrastructure, it adheres to NERC reliability standards and FERC regulations, ensuring grid stability and security. The facility is situated in an urban area, serving the dense population of Arlington and the greater Washington, D.C. metropolitan region. Clarendon Substation is critical for maintaining reliable electricity supply to residential, commercial, and governmental customers. Its location in a major urban center underscores its importance for grid resilience and emergency response. Its operational status indicates ongoing maintenance and compliance with industry standards.

The substation is located in an urban environment in Arlington, Virginia, a densely populated area with mixed residential and commercial land use. The surrounding region experiences a temperate climate with seasonal variations that influence electricity demand. The facility's 230 kV voltage level indicates its role in the high-voltage transmission network, which can have localized environmental impacts such as electromagnetic fields and land use. However, substations are typically designed to minimize ecological disruption through proper siting and mitigation measures.