Glebe Substation - 230 kV Substation in Arlington, Virginia | Dominion Energy

Glebe 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 230 kV, a standard transmission voltage level in the United States, indicating its role in the bulk power system. As part of Dominion Energy's infrastructure, it is subject to NERC reliability standards and FERC regulation, ensuring grid stability and compliance with mandatory reliability requirements. Located in an urban area near Washington, D.C., Glebe Substation supports the electricity needs of a densely populated region. Its operational status and connection to the wider grid contribute to the resilience and reliability of the local electrical infrastructure, serving residential, commercial, and critical facilities.

The substation is situated in an urban environment in Arlington, Virginia, where land use is dominated by residential and commercial development. The facility's 230 kV voltage level places it within the transmission network, which can have localized environmental considerations such as electromagnetic fields and visual impact. Dominion Energy operates under environmental regulations that address these factors, including compliance with the National Environmental Policy Act (NEPA) for new projects.