This project will rebuild an existing 230 kilovolt line from Suffolk, Virginia, south to Winfall, North Carolina. The 34 mile long project will replace aging infrastructure on a transmission line that has been in operation for more than 50 years. The structures and wire need to be replaced to ensure the continued integrity of the electrical grid.
In Virginia, this project is 11 miles long. Dominion Energy will replace wooden H frame structures with weathered steel H frame structures.
In North Carolina, this project is 24 miles long. For this portion of the project we will also replace wooden H frame structures with weathered steel H frame structures.
Along this 34 mile project route, new structures will closely resemble existing structures and stand 67 feet tall on average.
- On November 8, 2019, the SCC issued its Final Order for the Suffolk Swamp Winfall Rebuild Project.
- On June 6, 2019, Dominion Energy held an open house at Eureka Baptist Church in Corapeake, North Carolina.
- On May 9, 2019 Dominion Energy held an open house at Forest Glen Middle School.
- On May 16, 2019, Dominion Energy filed an application for a Certificate of Public Convenience and Necessity with the Virginia State Corporation Commission (SCC) for the Suffolk Swamp Winfall Rebuild Project.
- Provide long-term reliability and durability without excessive maintenance
- Deliver operational system flexibility to meet future needs
- Comply with mandatory standards to ensure safety and reliability
- Minimized impacts to the local area and environment
For this project, we will replace aging infrastructure with new electrical equipment in an existing right of way. This equipment will ensure the continued integrity of the electrical grid.
Along this 34 mile long project we will install weathered steel H frame structures from the Suffolk substation to the Winfall substation located in Winfall, North Carolina.
View a map of the proposed project.
SCC Approval Process
May 2019 - SCC application
The Virginia State Corporation Commission (SCC) has regulatory authority over all energy providers in Virginia and requires certification for all transmission lines out of the ordinary course of doing business or are at or above 138 kV. Among other responsibilities, the SCC validates the need for a proposed line and approves the route and structures. In reviewing a proposed project, the SCC must consider whether potential impacts on scenic assets, historic districts and the environment have been reasonably minimized.
To learn more about this process, please view our SCC application review process.
The following key dates and developments are related to the SCC review timeline. For the most up-to-date and full listing of motions, rulings and other related documents, please refer to the SCC docket for this case.