Overview
Green Run Substation is an operational electrical substation in Virginia, United States, owned by Virginia Electric and Power Company. It operates at 230 kV, serving as a key node in the regional transmission grid.
Green Run Substation is an operational electrical substation located in Virginia, United States. Owned and operated by Virginia Electric and Power Company, the facility operates at a voltage of 230 kV, classifying it as a high-voltage transmission substation critical for bulk power transfer and grid stability. The substation's 230 kV voltage level aligns with typical transmission infrastructure in the United States, which is regulated by the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC). As part of the PJM Interconnection regional transmission organization, the facility adheres to mandatory reliability standards and market rules that ensure secure and efficient electricity delivery across the Mid-Atlantic and Midwest regions. As a transmission substation, Green Run plays a vital role in stepping down voltage from extra-high-voltage lines for distribution to local networks, supporting residential, commercial, and industrial customers in the Virginia Beach area. Its operational status and strategic location contribute to the resilience of the regional power grid, particularly during peak demand periods or extreme weather events common to the Atlantic coastal region.
Environmental context
The substation is situated in a coastal plain region of Virginia, characterized by a humid subtropical climate with hot summers and mild winters. The area is prone to hurricanes and nor'easters, which can pose risks to electrical infrastructure through flooding and high winds. The facility's design likely incorporates flood mitigation and storm hardening measures to maintain grid reliability. The surrounding land use is a mix of residential and commercial development, with proximity to the Chesapeake Bay watershed, necessitating careful management of potential transformer oil spills to protect local waterways.
Frequently asked questions
Green Run Substation is located in Virginia, United States, near the city of Virginia Beach. Its coordinates are approximately 36.7979° N, -76.1072° W.
Green Run Substation operates at 230 kV (230,000 volts), which is a standard high-voltage transmission level used for bulk power transfer across the regional grid.
Green Run Substation is owned and operated by Virginia Electric and Power Company, a subsidiary of Dominion Energy, which serves millions of customers in Virginia and North Carolina.
As a transmission substation in the United States, Green Run Substation must comply with NERC reliability standards and FERC regulations. It is part of the PJM Interconnection, which enforces market rules and grid reliability requirements.
A 230 kV substation like Green Run serves as a critical node in the transmission network, stepping down voltage from higher levels (e.g., 500 kV) for distribution to local substations and end-users. It also provides switching and protection functions to maintain grid stability.