Midlothian
Named in 10 PJM planning documents for 7 projects, from October 8, 2024 to October 6, 2026.
Existingdescribed as
DOMzone
230 kV, 230kV, 500 kVkV as printed
10mentions
Also printed as: Midlothian substation
PJM interconnection queue
A PJM queue substation page has the same name: Midlothian (VA) — 5 queue requests filed, 4 active.
Same name and transmission owner. Matched on name and transmission owner: the utility that presented this substation in PJM planning materials is the transmission owner recorded on the queue filings at a substation of the same name. Not verified as the same facility.
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 |
|---|---|---|---|---|---|
| Dominion Transmission Zone: Baseline New 765/500/230kV Yeat Substation B4000.355 – B4000.359 |
Not printed | $1,109.89M | 6/1/2029 | Not printed | 2026-04-07 TEAC |
| Regional Solution: 2025-W1-275 Portfolio b4053.1 |
Not printed | $4832.45 | 6/1/2032 | Not printed | 2026-01-06 TEAC |
| Ironbridge Sub – Upgrade TX#2 and Install Ring Bus DOM-2023-0042 · s3501.1 |
Engineering | $10.3 M | 09/01/2025 | Not printed | 2024-10-08 TEAC |
| Duval 230kV Delivery - DEV DOM-2024-0031 · s3677 |
Engineering | $30.0M Substation, $80M Transmission Lines | 1/1/2028 | 76.9 MW | 2025-10-08 TEAC |
| Dominion Transmission Zone: Supplemental Do No Harm Analysis DOM-2024-0036-DNH (Update) |
Conceptual | $212M | Q4 2031 | Not printed | 2026-10-06 TEAC |
| West Creek 230kV Delivery - DEV DOM-2025-0054 |
Conceptual | $35M | 07/26/2028 | 100 MW | 2026-01-06 TEAC |
| Dominion Transmission Zone: Baseline Regional Solution: 2025-W1-275 Portfolio 2025-W1-275 |
Not printed | Not printed | 6/1/2032 | Not printed | 2025-12-08 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 |
|---|---|---|---|
| Cost estimate prior value printed on the same page |
$1,055.3 M → $1,109.89M | 2025-01-07 | 2025-01-07 |
| Cost estimate prior value printed on the same page |
$1,109.89M → $978.76 M | 2026-08-04 | 2026-08-04 |
| Cost estimate | $1,109.89M → $978.76 M | 2026-05-08 | 2026-08-04 |
| Substations named | BRISTERS; ELK RUN; JOSHUA FALLS; MEADOWBROOK; VINT HILL; YEAT → BRISTERS; CULPEPER YEAT; CUNNINGHAM; ELK RUN; ELMONT; JOSHUA FALLS; KRAKEN; MEADOWBROOK; MIDLOTHIAN; MORRISVILLE; MOSBY; NOKESVILLE; NORTH ANNA; POSSUM PT; SPOTSYLVANIA; VINT HILL; VONTAY; WISHING STAR; YEAT | 2025-01-07 | 2026-04-07 |
| Substations named | BRISTERS; CULPEPER YEAT; CUNNINGHAM; ELK RUN; ELMONT; JOSHUA FALLS; KRAKEN; MEADOWBROOK; MIDLOTHIAN; MORRISVILLE; MOSBY; NOKESVILLE; NORTH ANNA; POSSUM PT; SPOTSYLVANIA; VINT HILL; VONTAY; WISHING STAR; YEAT → ANDERSON BRANCH; BRISTERS; CULPEPER YEAT; ELK RUN; ELMONT; JOSHUA FALLS; KRAKEN; MEADOWBROOK; MORRISVILLE; MOSBY; NOKESVILLE; POSSUM PT; SPOTSYLVANIA; VINT HILL; VONTAY; WISHING STAR; YEAT | 2026-04-07 | 2026-05-08 |
| Substations named | ANDERSON BRANCH; BRISTERS; CULPEPER YEAT; ELK RUN; ELMONT; JOSHUA FALLS; KRAKEN; MEADOWBROOK; MORRISVILLE; MOSBY; NOKESVILLE; POSSUM PT; SPOTSYLVANIA; VINT HILL; VONTAY; WISHING STAR; YEAT → BRISTERS; CLOVERDALE; ELK RUN; JOSHUA FALLS; MEADOWBROOK; VINT HILL; YEAT | 2026-05-08 | 2026-08-04 |
| Substations named | DUVAL; MIDLOTHIAN; WINTERPOCK → DUVAL; MIDLOTHIAN | 2025-02-04 | 2025-10-08 |
| In-service date | 1/2/2029 → 07/26/2028 | 2025-10-08 | 2026-01-06 |
| Substations named | WEST CREEK → MIDLOTHIAN; NORTH POLE; ROCKVILLE; SHORT PUMP; WEST CREEK | 2025-10-08 | 2026-01-06 |
| Substations named | MIDLOTHIAN; NORTH POLE; ROCKVILLE; SHORT PUMP; WEST CREEK → ROCKVILLE; SHORT PUMP; WEST CREEK | 2026-01-06 | 2026-10-06 |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-10-06 | TEAC Item 14 - DOM Supplemental Projects - Presentation p. 6 |
Dominion Transmission Zone: Supplemental Do No Harm Analysis | “Midlothian-Bremo to current 230 kV standards” 230 kV |
| 2026-09-08* | SRRTEP Southern Dominion p. 168 |
Ironbridge Sub – Upgrade TX#2 and Install Ring Bus | “Line #282 from Midlothian to Spruance NUG” |
| 2026-07-07 | TEAC Item 14 - DOM Supplemental Projects p. 9 |
Dominion Transmission Zone: Supplemental Do No Harm Analysis | No role wording |
| 2026-04-07 | TEAC Item 11 - Reliability Analysis Update p. 16 |
Dominion Transmission Zone: Baseline New 765/500/230kV Yeat Substation | No role wording 500 kV |
| 2026-01-06 | TEAC Item 07 - DOM Supplemental Projects p. 13 |
West Creek 230kV Delivery - DEV | No role wording 230kV |
| 2026-01-06 | TEAC Item 09 - Reliability Analysis Update p. 29 |
Regional Solution: 2025-W1-275 Portfolio | “Uprate terminal equipment at Midlothian to 5000 A.” 500 kV |
| 2025-12-08 | TEAC Item 11 - Reliability Analysis Update p. 78 |
Dominion Transmission Zone: Baseline Regional Solution: 2025-W1-275 Portfolio | “Uprate terminal equipment at Midlothian to 5000 A.” |
| 2025-10-08 | TEAC Informational Only - Dominion Local Plan Submission of the Supplemental Projects 2025 p. 33 |
Duval 230kV Delivery - DEV | “extending two new 230kV lines from Midlothian substation” 230kV |
| 2025-02-04 | TEAC Item 11 - Dominion Supplemental Projects p. 4 |
Duval 230kV Delivery - DEV | “lines from Midlothian substation” |
| 2024-10-08 | TEAC Informational Only - DOM Local Plan submission of supplemental projects 2024 p. 168 |
Ironbridge Sub – Upgrade TX#2 and Install Ring Bus | 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.