Substation Scout

Powerton

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

Existingdescribed as
COMEDzone
345 kV, 345kVkV as printed
4mentions

PJM interconnection queue

A PJM queue substation page has the same name: Powerton (IL) — 5 queue requests filed, 2 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
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. 7
MISO Tranche 2.1 Request “Replace 345 kV BT 5-6 oil CB at Powerton”
345 kV
2026-09-30* SRRTEP Western
ComEd local plan submission of the supplemental projects for 2026 RTEP p. 7
MISO Tranche 2.1 Request “Replace 345 kV BT 5-6 oil CB at Powerton”
345 kV
2025-11-04 TEAC
Item 11 - ComEd Supplemental Projects p. 10
MISO Tranche 2.1 Request “Replace 345 kV BT 5-6 oil CB at Powerton”
345 kV
2025-03-04 TEAC
Item 11 - ComEd Supplemental Projects p. 8
MISO Tranche 2.1 Request “Cut-in existing ComEd 345kV Powerton-Katydid and Powerton-Nevada transmission lines”
345kV

* 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