Substation Scout

Allman

Named in 4 PJM planning documents for 4 projects, from April 1, 2025 to October 6, 2026.

Newdescribed as
DOMzone
230 kV, 230kVkV as printed
6mentions

Described as new: “Construct Allman Switching Station” — source, page 8

Projects naming this substation

Figures are from the most recent document naming each project, as printed. Each links to its page.

ProjectStatus as printedCost estimateIn-service dateCustomer loadAs of
Dominion Transmission Zone: Supplemental Do No Harm Analysis
DOM-2023-0016 · s3731
Engineering $27 M 05/31/2025 248.0 MW 2026-10-06
TEAC
Alto 230kV Delivery - DEV
DOM-2023-0056 · s3813
Engineering $16.5M 07/02/2027 213.7 MW 2026-10-06
TEAC
Baritone 230kV Delivery - DEV
DOM-2024-0008 · s3810
Engineering $15.5M 12/30/2029 32 MW 2026-10-06
TEAC
Fredericksburg to Possum Corridor – Add 3rd and 4th 230kV Lines
DOM-2024-0035 · s3701
Conceptual $180.0M 06/01/2029 Not printed 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 changedPrinted valuesEarlierLater
Cost estimate $27.0 M → $450.0M 2025-04-01 2026-06-02
Cost estimate $450.0M → $27 M 2026-06-02 2026-10-06
In-service date 05/31/2025 → 07/01/2029 2025-04-01 2026-06-02
In-service date 07/01/2029 → 05/31/2025 2026-06-02 2026-10-06
Substations named ALLMAN; ELMONT; FOUR RIVERS; FREDERICKSBURG; KRAKEN; LADYSMITH; LADYSMITH CT; LEES HILL; N DOSWELL; NEW POST; PINEWOOD; RUTHER GLEN; ST JOHNS → ALLMAN; CHANCELLOR; ELMONT; FOUR RIVERS; FREDERICKSBURG; KRAKEN; LADYSMITH; LADYSMITH CT; LEES HILL; N DOSWELL; NEW POST; PINEWOOD; POSSUM POINT; RUTHER GLEN; ST JOHNS; THORNBURG 2025-04-01 2026-06-02
Substations named ALLMAN; CHANCELLOR; ELMONT; FOUR RIVERS; FREDERICKSBURG; KRAKEN; LADYSMITH; LADYSMITH CT; LEES HILL; N DOSWELL; NEW POST; PINEWOOD; POSSUM POINT; RUTHER GLEN; ST JOHNS; THORNBURG → ALLMAN; ELMONT; FOUR RIVERS; FREDERICKSBURG; KRAKEN; LADYSMITH; LADYSMITH CT; NEW POST; PINEWOOD; POSSUM POINT; RUTHER GLEN; ST JOHNS; THORNBURG 2026-06-02 2026-10-06
Substations named ALTO → ALLMAN; ALTO; AQUIA HARBOR; CENTREPORT; SPARTAN 2025-10-08 2026-10-06
Substations named ALTO; BARITONE → ALLMAN; ALTO; BARITONE; CENTREPORT 2025-10-08 2026-10-06

Every mention

DateDocumentProjectWhat the document says about it
2026-10-06 TEAC
Informational Only - Dominion Local Plan Submission of the Supplemental Projects 2026 p. 3
Alto 230kV Delivery - DEV No role wording
2026-10-06 TEAC
Informational Only - Dominion Local Plan Submission of the Supplemental Projects 2026 p. 5
Baritone 230kV Delivery - DEV No role wording
2026-10-06 TEAC
Informational Only - Dominion Local Plan Submission of the Supplemental Projects 2026 p. 51
Dominion Transmission Zone: Supplemental Do No Harm Analysis No role wording
2026-06-02 TEAC
Item 11 - DOM Supplemental Projects p. 10
Dominion Transmission Zone: Supplemental Do No Harm Analysis No role wording
230 kV
2025-10-08 TEAC
Informational Only - Dominion Local Plan Submission of the Supplemental Projects 2025 p. 8
Fredericksburg to Possum Corridor – Add 3rd and 4th 230kV Lines “Construct Allman Switching Station”
230kV
2025-04-01 TEAC
Item 11 - DOM Supplemental Projects p. 16
Dominion Transmission Zone: Supplemental Do No Harm Analysis 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