Substation Scout

Collins

Named in 6 PJM planning documents for 3 projects, from December 3, 2024 to October 6, 2026.

Existingdescribed as
COMEDzone
345kV, 765kVkV as printed
6mentions

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
ComEd Transmission Zone M-3 Process
ComEd-2024-023
Not printed Not printed 6/1/2033 Not printed 2024-12-03
TEAC
Customer in Morris
ComEd-2025-011
Conceptual $99M 6/1/2028 1,000 MW 2026-02-03
TEAC
MISO Tranche 2.1 Request
ComEd 2024-023 · s3843
Conceptual $908.7M 6/1/2034 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
prior value printed on the same page
$874.2M → $908.7M 2025-11-04 2025-11-04
Cost estimate $874.2M* → $908.7M 2025-03-04 2025-11-04
Substations named BABCOCK; COLLINS; GREEN ACRES; KATYDID; LAKEVIEW; NEVADA; OLIVE; PARIS; PLEASANT PRAIRIE; POWERTON; UNIVERSITY PARK; WOODFORD COUNTY; ZION → BABCOCK; COLLINS; DES PLAINES; GREEN ACRES; KATYDID; LAKEVIEW; NEVADA; OLIVE; PARIS; PLEASANT PRAIRIE; POWERTON; UNIVERSITY PARK; WOODFORD COUNTY; ZION 2025-03-04 2025-11-04

Every mention

DateDocumentProjectWhat the document says about it
2026-10-06 TEAC
Informational Only - ComEd Local Plan Submission of Supplemental Projects for 2026 p. 6
MISO Tranche 2.1 Request “Expand and reconfigure the existing ComEd Collins 765kV substation”
765kV
2026-09-30* SRRTEP Western
ComEd local plan submission of the supplemental projects for 2026 RTEP p. 6
MISO Tranche 2.1 Request “Expand and reconfigure the existing ComEd Collins 765kV substation”
765kV
2026-02-03 TEAC
Item 10 - ComEd Supplemental Projects p. 9
Customer in Morris No role wording
345kV
2025-11-04 TEAC
Item 11 - ComEd Supplemental Projects p. 10
MISO Tranche 2.1 Request “Expand and reconfigure the existing ComEd Collins 765kV substation”
765kV
2025-03-04 TEAC
Item 11 - ComEd Supplemental Projects p. 8
MISO Tranche 2.1 Request “Expand and reconfigure the existing ComEd Collins 765kV substation”
765kV
2024-12-03 TEAC
Item 07 - ComEd Supplemental Projects p. 3
ComEd Transmission Zone M-3 Process “Expansion of ComEd’s Collins 765kV transmission substation”
765kV

* 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