Southall
Named in 5 PJM planning documents for 4 projects, from October 8, 2024 to October 6, 2026.
Newdescribed as
DOMzone
230 kV, 230kVkV as printed
7mentions
Described as new: “new substation (Southall)” — source, page 129
Also printed as: Southall substation · Southall Sub
Projects naming this substation
Figures are from the most recent document naming each project, as printed. Each links to its page.
| Project | Status as printed | Cost estimate | In-service date | Customer load | As of |
|---|---|---|---|---|---|
| Southall 230kV Delivery - REC DOM-2023-0017 · s3072 |
Engineering | $55.0 M | 05/01/2025 | 100 MW | 2024-10-08 TEAC |
| Frances 230kV Delivery - REC DOM-2025-0071 · s3997 |
Conceptual | $21M | 8/01/2027 | 176 MW | 2026-10-06 TEAC |
| Do No Harm Analysis DOM-2025-0071-DNH · s3997.3, s3997.4 |
Conceptual | $12M | 12/30/2028 | Not printed | 2026-10-06 TEAC |
| Supplemental Do No Harm Analysis DOM-2025-0072 DNH |
Conceptual | $115M | 03/01/2029 | 300MW | 2026-03-10 TEAC |
Changes between documents
Where two documents print different values for the same project. A large change in a cost estimate can reflect a need being combined with others into one solution, not only a re-estimate; read both pages.
| What changed | Printed values | Earlier | Later |
|---|---|---|---|
| Substations named | FOXBROOK LANE; FRANCES; GORDONSVILLE; N ANNA; NORTH ANNA; SOUTHALL → FRANCES; NORTH ANNA; SOUTHALL | 2026-01-06 | 2026-10-06 |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-10-06 | TEAC Informational Only - Dominion Local Plan Submission of the Supplemental Projects 2026 p. 62 |
Frances 230kV Delivery - REC | No role wording |
| 2026-10-06 | TEAC Informational Only - Dominion Local Plan Submission of the Supplemental Projects 2026 p. 63 |
Do No Harm Analysis | No role wording |
| 2026-09-08* | SRRTEP Southern Dominion p. 129 |
Southall 230kV Delivery - REC | “new substation (Southall)” 230kV |
| 2026-03-10 | TEAC Item 09 - DOM Supplemental Projects p. 5 |
Supplemental Do No Harm Analysis | No role wording |
| 2026-01-06 | TEAC Item 07 - DOM Supplemental Projects p. 17 |
Frances 230kV Delivery - REC | “extending a new double circuit 230kV feed from Southall substation” 230kV |
| 2026-01-06 | TEAC Item 07 - DOM Supplemental Projects p. 18 |
Do No Harm Analysis | No role wording 230 kV |
| 2024-10-08 | TEAC Informational Only - DOM Local Plan submission of supplemental projects 2024 p. 129 |
Southall 230kV Delivery - REC | “new substation (Southall)” 230kV |
* A local-plan posting carries no meeting date; the date shown is when pjm.com last modified the file.
Before relying on any of this
- Names are machine-extracted from PDFs by a language model. Every exported name was checked to be printed in the PDF text; names read only from maps or diagrams are excluded.
- An entry is a name within a transmission zone, not a verified physical facility. The same name in two zones is two entries; spelling variants are merged only when they differ by punctuation, case or a generic suffix such as "Substation".
- role is "new" only where a cited document phrase describes the substation as new or describes constructing it, "existing" where a phrase describes work at it, otherwise "unknown".
- Costs, dates, statuses and loads are the documents' own printed values for the most recent document that names the substation. Each one shipped here is printed on its cited page ("verification": "exact" or "on-page"); values that failed that check are withheld and counted in figures_withheld_unverified. None has been reviewed by a person.
- Zone is the transmission owner whose deck presented the project. PJM-SYSTEM marks names from PJM's own reliability decks, which span zones.
- A printed customer load is the amount a document states for a request. It says nothing about the substation's capability.