Substation Scout

Allen Junction Substation

Named in 4 PJM planning documents for 2 projects, from December 8, 2025 to October 16, 2026.

Existingdescribed as
ATSIzone
345 kVkV as printed
4mentions

PJM interconnection queue

A PJM queue substation page has the same name: Allen Junction (OH) — 3 queue requests filed, 0 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.

ProjectStatus as printedCost estimateIn-service dateCustomer loadAs of
Westgate Station 138 kV
ATSI-2024-009
Conceptual $3.8 M 05/26/2028 Not printed 2026-10-16
SRRTEP Western
Lallendorf Substation Upgrades for MISO Tranche 2.1
ATSI-2025-005 · s3845.1
Not printed $7.21 6/1/2032 Not printed 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 $5.9 M → $7.21 M 2025-03-04 2025-12-08
Cost estimate $7.21 M → $7.21 2025-12-08 2026-10-06
Substations named LALLENDORF; LAPLAISANCE CREEK; MONROE → LALLENDORF 2025-02-04 2025-03-04
Substations named LALLENDORF → ALLEN JUNCTION; LALLENDORF; MOROCCO 2025-03-04 2025-12-08
Substations named ALLEN JUNCTION; LALLENDORF; MOROCCO → ALLEN JUNCTION; LALLENDORF 2025-12-08 2026-10-06

Every mention

DateDocumentProjectWhat the document says about it
2026-10-16 SRRTEP Western
Item 02 - ATSI Supplemental Projects Presentation p. 9
Westgate Station 138 kV “Circuit Breakers B-13374 at Allen Junction Substation”
2026-10-06 TEAC
Informational Only - ATSI Local Plan Submission of the Supplemental Projects for 2026 p. 21
Lallendorf Substation Upgrades for MISO Tranche 2.1 “At Allen Junction Substation, replace disconnect switches, breaker leads, metering, and transmission line drops.”
2026-09-23* SRRTEP Western
ATSI local plan submission of the supplemental projects for 2026 RTEP p. 21
Lallendorf Substation Upgrades for MISO Tranche 2.1 “At Allen Junction Substation, replace disconnect switches, breaker leads, metering, and transmission line drops.”
2025-12-08 TEAC
Item 04 - ATSI Supplemental Projects p. 7
Lallendorf Substation Upgrades for MISO Tranche 2.1 “At Allen Junction Substation, replace disconnect switches”
345 kV

* 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