Elk Grove
Named in 4 PJM planning documents for 3 projects, from October 8, 2025 to November 14, 2025.
Existingdescribed as
COMEDzone
138 kV, 345 kV, 345/138 kVkV as printed
4mentions
Also printed as: Elk Grove substation
Projects naming this substation
Figures are from the most recent document naming each project, as printed. Each links to its page.
| Project | Status as printed | Cost estimate | In-service date | Customer load | As of |
|---|---|---|---|---|---|
| Elk Grove 345/138 kV Transformer b3981.1 |
Not printed | $28.96 M | 6/1/2030 | Not printed | 2025-11-14 SRRTEP Western |
| Elk Grove 345/138 kV Transformer | Not printed | $28.96 M | 6/1/2030 | Not printed | 2025-10-17 SRRTEP Western |
| Customer in Elk Grove ComEd-2023-008 · s3582.1, s3582.2 |
Engineering | $158M | 12/31/2026 (s3582.1), 12/31/2026 (s3582.2) | 378 MW | 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 changed | Printed values | Earlier | Later |
|---|---|---|---|
| Substations named | DES PLAINES; ELK GROVE; LOMBARD; ROLLING MEADOWS; SCHAUMBURG → DES PLAINES; ELK GROVE; LOMBARD; SCHAUMBURG | 2025-10-08 | Not reported |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-09-08* | SRRTEP Western ComEd local plan submission of the supplemental projects for 2025 RTEP p. 11 |
Customer in Elk Grove | “Install 2 new 420 MVA 345/138 kV autotransformers at Elk Grove” 345 kV |
| 2025-11-14 | SRRTEP Western Item 01 - SRRTEP West - Reliability Analysis Update p. 25 |
Elk Grove 345/138 kV Transformer | “Install a 345/138 kV transformer TR 83 and associated
equipment at Elk Grove substation” 345/138 kV |
| 2025-10-17 | SRRTEP Western Item 01 - SRRTEP West - Reliability Analysis Update p. 19 |
Elk Grove 345/138 kV Transformer | “associated equipment at Elk Grove substation” 345/138 kV |
| 2025-10-08 | TEAC Informational Only - ComEd Local Plan Submission of the Supplemental Projects for 2025 p. 11 |
Customer in Elk Grove | “each 138 kV line from Elk Grove to new customer site” 138 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
- Names are machine-extracted from PDFs by a language model. Every exported name was checked to be printed in the PDF text; names read only from maps or diagrams are excluded.
- An entry is a name within a transmission zone, not a verified physical facility. The same name in two zones is two entries; spelling variants are merged only when they differ by punctuation, case or a generic suffix such as "Substation".
- role is "new" only where a cited document phrase describes the substation as new or describes constructing it, "existing" where a phrase describes work at it, otherwise "unknown".
- Costs, dates, statuses and loads are the documents' own printed values for the most recent document that names the substation. Each one shipped here is printed on its cited page ("verification": "exact" or "on-page"); values that failed that check are withheld and counted in figures_withheld_unverified. None has been reviewed by a person.
- Zone is the transmission owner whose deck presented the project. PJM-SYSTEM marks names from PJM's own reliability decks, which span zones.
- A printed customer load is the amount a document states for a request. It says nothing about the substation's capability.