Orrock(Matta)
Named in 2 PJM planning documents for 2 projects, from February 3, 2026 to October 6, 2026.
Newdescribed as
DOMzone
230kVkV as printed
3mentions
Described as new: “new substation (Orrock (Matta))” — source, page 100
Also printed as: Orrock (Matta) · Orrock (Matta) 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 |
|---|---|---|---|---|---|
| Orrock (Matta) 230kV Delivery - DEV DOM-2023-0023 · s3990 |
Engineering | $25.5 M | 11/15/2026 | 300 MW | 2026-10-06 TEAC |
| Mudd Tavern 230kV Delivery - REC DOM-2025-0032 · s3991 |
Conceptual | $ 22 M | 3/1/2029 | 300 MW | 2026-10-06 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 | KRAKEN; LADYSMITH CT; MATTA → LADYSMITH CT; ORROCK MATTA; THORNBURG | 2025-09-09 | 2026-10-06 |
| Cost estimate | $ 26M → $ 22 M | 2026-02-03 | 2026-10-06 |
| In-service date | 8/1/2029 → 03/01/2029 | 2025-10-08 | 2026-02-03 |
| Status | conceptual (Conceptual) → conceptual (Planning) | 2026-02-03 | 2026-10-06 |
| Substations named | MUDD TAVERN → MUDD TAVERN; ORROCK MATTA | 2025-10-08 | 2026-02-03 |
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. 100 |
Orrock (Matta) 230kV Delivery - DEV | “new substation (Orrock (Matta))” 230kV |
| 2026-10-06 | TEAC Informational Only - Dominion Local Plan Submission of the Supplemental Projects 2026 p. 54 |
Mudd Tavern 230kV Delivery - REC | No role wording |
| 2026-02-03 | TEAC Item 12 - DOM Supplemental Projects p. 4 |
Mudd Tavern 230kV Delivery - REC | No role wording |
* 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.