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South Hill
230 kV Electric Transmission Line and Substation Project
Project Overview
Mecklenburg County has been successful in diversifying its economic prospects and growing new industries in the county. To keep up with the economic developments and increased electrical demands, we are building two new electric transmission lines parallel to one another on shared right of way into the South Hill/La Crosse areas, as well as three new substations in South Hill/La Crosse. A transmission line loop, referred to as the interconnect route, will be built between the three new substations. Unity Substation, located in Lunenburg County, will be constructed as part of the South Hill Project. This project will bolster reliability, address the energy needs of the region, and continue our commitment to providing safe, reliable electricity to our neighbors.
Project construction began in early 2024. More detailed construction timelines are available in the timeline section of the page.

GeoVoice
Explore GeoVoice, an interactive mapping tool. You can:
- Search for your address
- Explore approved project routes and structure locations
For tips and tricks on how to use GeoVoice, view the GeoVoice Fact Sheet.
*Please note – this viewer shows multiple Mecklenburg-area projects. To view the approved South Hill project information, be sure to select South Hill in the legend.
*Updated May 2024

Pre-construction community meetings have been held for Phases 1-3, and access maps shared at those meetings are available below. Please visit our construction overview portal to learn more about our typical construction process.
Documents
- Mecklenburg Projects - Overview Map
- Mecklenburg Co. Board of Supervisor Presentation – February 14, 2022
- Overview Map – Study Area
- Community Meeting Presentation – June 1, 2022
- Structure Renderings - June 1, 2022
- Aerial Renderings - June 7, 2022
- Community Meeting Presentation – June 7–8, 2022
- Routing Alternatives as of July 7, 2022 – Eastern Solution
- Routing Alternatives as of July 7, 2022 – Northern Solution
- Routing Alternatives as of July 7, 2022 – Substation Interconnects
- Mecklenburg Co. Board of Supervisors Presentation – July 11, 2022
- Lunenburg Co. Board of Supervisors Presentation – July 14, 2022
- Routing Alternatives as of July 16, 2022 – Eastern Solution
- Routing Alternatives as of July 16, 2022 – Northern Solution
- Routing Alternatives as of July 16, 2022 – Substation Interconnects
- Routing Alternatives as of July 17, 2022
- Photo Simulations – July 20, 2022
- Fort Christanna Board Presentation – July 28, 2022
- South Hill Photo Simulations
- South Hill Update Postcard – August 2024
- South Hill Phase 3: Tunstall to Evans Creek Update Mailer - March 2025
Unity Substation Documents
- Unity Substation and South Hill project Map
- Unity Substation Fact Sheet
- Unity Substation Fact Sheet – Spanish
- Community Meeting Invite – September 20, 2023
- Community Meeting Invite – November 1, 2023
- Unity Community Meeting Presentation – November 1, 2023
- Utility Fence Examples
- Utility Fence Examples – Spanish
- Unity Substation Conditional Use Permit
GeoVoice
Explore GeoVoice, an interactive mapping tool. You can:
- Search for your address
- Explore approved project routes and structure locations
For tips and tricks on how to use GeoVoice, view the GeoVoice Fact Sheet.
*Please note – this viewer shows multiple Mecklenburg-area projects. To view the approved South Hill project information, be sure to select South Hill in the legend.
*Updated May 2024
- Mecklenburg Projects - Overview Map
- Overview Map – Study Area
- Routing Alternatives as of May 17, 2022
- Routing Alternatives as of May 16, 2022 – Eastern Solution
- Routing Alternatives as of May 16, 2022 – Northern Solution
- Routing Alternatives as of May 16, 2022 – Substation Interconnects
- Routing Alternatives as of July 7, 2022 – Eastern Solution
- Routing Alternatives as of July 7, 2022 – Northern Solution
- Routing Alternatives as of July 7, 2022 – Substation Interconnects
- South Hill Approved Route

SCC
The Virginia State Corporation Commission (SCC) has regulatory authority over all energy providers in Virginia. 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.
On 10/6/22, Dominion Energy filed its application with the SCC. The SCC issued its Final Order approving the project on 6/14/23. Documents related to the case are available to the public on the SCC Docket of the SCC website or search by Case No. PUR-2022-00167 in the " Search Cases " section. In addition, interested parties may visit the SCC Case Comments Page where individual mailboxes are available for each case accepting public comments.
*Due to file size, document links may take some time to open on your computer or mobile device.
SCC Timeline (Updated as of February 2023):
- February 1, 2023 – Notices of Participation deadline
- March 6, 2023 – Respondent Testimony deadline
- March 22, 2023 – Staff Report deadline
- April 4, 2023 – Deadline for Public Comments
- April 10, 2023 – Deadline for public witnesses to indicate desire to testify
- April 11, 2023 – Dominion Energy Virginia Rebuttal deadline
- April 18, 2023 – Public Witness Hearing, 10:00 a.m.
- April 19, 2023 – Evidentiary Hearing, 10:00 a.m., 2nd floor courtroom SCC
- June 14, 2023- SCC issued final order, approving
- Northern/Unity Solution, Route Alternative 2 (orange route)
- Interconnect Corridor A Route 1 (red route), Interconnect Corridor B Route 1 (peach route), and Interconnect Corridor D Route 4 (purple route)
Previous Meetings
During the meetings, our project team gives a 20-minute presentation explaining the project need, routing options, impact, and construction timelines. Attendees can speak with and ask questions directly to our subject matter experts.
Thursday, May 16, 2024
5:30 – 7:30 p.m.
Dogwood Event Venue
313 Franklin Street
South Hill, VA 23970
Monday, June 6, 2022
5–7 p.m.
The Colonial Center for Performing Arts
220 South Mecklenburg Avenue
South Hill, VA 23970
Monday, June 6, 2022
5–7 p.m.
The Colonial Center for Performing Arts
220 South Mecklenburg Avenue
South Hill, VA 23970
Wednesday, June 1, 2022
5–7 p.m.
Brunswick County Conference Center
100 Athletic Field Road
Lawrenceville, VA 23868
Upcoming
End of 2025
Project completion target
Early 2025
Begin Phase 4 Construction
2024
October 2024
Unity Substation Conditional Use Permit approval by Lunenburg County
Fall 2024
Begin Phase 3 Construction
Summer 2024
Begin Phase 2 construction
Early 2024
Begin Phase 1 Construction
Early 2024
Begin construction
2023
June 14, 2023
SCC issued final order. Visit our legal page to learn more about the approved routes.
October 6, 2022
UPDATED: Submitted application with the Virginia State Corporation Commission (SCC)
Summer 2022
Host public community meetings - June 1, June 6, June 7, and July 20
(Visit our meetings section above)
(Visit our meetings section above)
April 2022
Notify public of the project
Construction-Related Impact

Service Interruption
Your electric service is not expected to be impacted by this project.

Neighborhood
Access to surrounding neighborhoods may be impacted.

Traffic
There may be some traffic delays.

Environment
This project may have limited environmental impacts.

Neighborhood
Access to surrounding neighborhoods may be impacted.
