Substation Scout

Aquia Harbor

Named in 2 PJM planning documents for 2 projects, from May 8, 2026 to October 6, 2026.

Not stateddescribed as
DOMzone
—kV as printed
2mentions

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: Baseline New 500kV Line North Anna - Thornburg - Bristers
b4000.344 & b4000.345
Not printed $661.63M 9/16/2030 Not printed 2026-05-08
TEAC
Alto 230kV Delivery - DEV
DOM-2023-0056 · s3813
Engineering $16.5M 07/02/2027 213.7 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 changedPrinted valuesEarlierLater
Cost estimate
prior value printed on the same page
$704.25 M → $704.33 M 2025-01-07 2025-01-07
Cost estimate
prior value printed on the same page
$571.63M → $661.63M 2026-05-08 2026-05-08
Cost estimate $704.33 M → $661.63M 2025-01-07 2026-05-08
In-service date 6/1/2029 → 9/16/2030 2025-01-07 2026-05-08
Substations named ELMONT; KRAKEN; LADYSMITH; NORTH ANNA; POSSUM POINT; YEAT → AQUIA HARBOR; BRISTERS; KRAKEN; LADYSMITH; NORTH ANNA; STAFFORD; THORNBURG 2025-01-07 2026-05-08
Substations named ALTO → ALLMAN; ALTO; AQUIA HARBOR; CENTREPORT; SPARTAN 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
2026-05-08 TEAC
Item 10 - Reliability Analysis Update p. 15
Dominion Transmission Zone: Baseline New 500kV Line North Anna - Thornburg - Bristers 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