Unity
Named in 2 PJM planning documents for 1 project, on October 8, 2024.
Newdescribed as
DOMzone
500/230kVkV as printed
2mentions
Described as new: “build a new 500/230kV Unity switching station” — source, page 37
Also printed as: Unity Sub · Unity switching station
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 |
|---|---|---|---|---|---|
| Tunstall 230kV Delivery - DEV DOM-2022-0028 · s3022 |
Engineering | $140.0M | 08/01/2025 | 77.0 MW | 2024-10-08 TEAC |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-09-08* | SRRTEP Southern Dominion p. 37 |
Tunstall 230kV Delivery - DEV | “build a new 500/230kV Unity switching station” 500/230kV |
| 2024-10-08 | TEAC Informational Only - DOM Local Plan submission of supplemental projects 2024 p. 37 |
Tunstall 230kV Delivery - DEV | “build a new 500/230kV Unity switching station” 500/230kV |
* 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.