Mountain Run 3
Named in 1 PJM planning document for 1 project, on October 8, 2025.
Newdescribed as
DOMzone
—kV as printed
1mentions
Described as new: “previously called Mountain Run 3” — source, page 38
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 |
|---|---|---|---|---|---|
| Mountain Run 230kV Delivery - REC DOM-2022-0034 (Update) · s3680 |
Engineering | $60 M | Q4 2027 | 298 MW | 2025-10-08 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 |
|---|---|---|---|
| In-service date | Q4 2027 → 12/30/2025 | 2025-10-08 | Not reported |
| In-service date | 12/30/2025 → Q4 2027 | 2024-10-08 | 2025-02-04 |
| Substations named | CIRRUS; CULPEPER; KYSER; MOUNTAIN RUN; MOUNTAIN RUN 3; TECHNOLOGY → CIRRUS; CULPEPER; KYSER | 2025-10-08 | Not reported |
| Substations named | CIRRUS; CULPEPER; CULPEPER DP; KYSER; MOUNTAIN RUN DP → CIRRUS; CULPEPER; KYSER; MOUNTAIN RUN; MOUNTAIN RUN JUNCTION; TECHNOLOGY | 2024-10-08 | 2025-02-04 |
| Substations named | CIRRUS; CULPEPER; KYSER; MOUNTAIN RUN; MOUNTAIN RUN JUNCTION; TECHNOLOGY → CIRRUS; CULPEPER; KYSER; MOUNTAIN RUN; MOUNTAIN RUN 3; TECHNOLOGY | 2025-02-04 | 2025-10-08 |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2025-10-08 | TEAC Informational Only - Dominion Local Plan Submission of the Supplemental Projects 2025 p. 38 |
Mountain Run 230kV Delivery - REC | “previously called Mountain Run 3” |
* 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.