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Possum Point Substation Reliability Project

The reliable operation, maintenance, expansion and modernization of the company’s electric transmission system are among our highest priorities. As such, the company continually evaluates and analyzes its existing transmission system and identifies facilities in need of improvement. As part of the announced retirement of coal-powered electricity generating units at Possum Point Power Station, in order to maintain adherence to federally mandated reliability standards, substation and transmission line upgrades are needed.

Project Update

July 2020 – Project notification postcards mailed to neighbors along Possum Point Road in Dumfries, VA

Map of Possum Point Substation

Overview

All work will occur on Dominion Energy property at Possum Point Power Station. We plan to add an additional transformer at the existing 500 kV substation, make improvements to the existing 230 kV substation, and install nearly one mile of new transmission line in an existing line corridor.

Purpose

The project is necessary to resolve potential violations of the mandatory North American Electric Reliability Corporation (NERC) Reliability Standards related to the retirement of coal-powered electricity generating units at the Company’s Possum Point Power Station.

Maps

Existing Project Overview Map

SCC Approval Process

The Virginia State Corporation Commission (SCC) is responsible for verifying the need, determining the route and reviewing the environmental impact of certain transmission lines in Virginia.

Once we submit our filing, documents related to the case will be available to the public on the SCC Docket Search section of the SCC website in the "Search Cases" section. In addition, interested parties may comment directly to the SCC by sending an email to sccinfo@scc.virginia.gov.

To learn more about this process, view our SCC process map.

Timeline

  • July 2020 – Notify public of project.
  • Q1 2021 – File application with SCC.
  • Q2 / Q3 2023 (anticipated) – Begin construction
  • End of 2023 (anticipated) – Complete project
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