Niles Central
Named in 4 PJM planning documents for 2 projects, from October 8, 2024 to October 6, 2026.
Existingdescribed as
ATSIzone
138 kVkV as printed
4mentions
Also printed as: Niles Central 138 kV substation · Niles Central 138 kV station · Niles Central 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 |
|---|---|---|---|---|---|
| Niles Central 138 kV substation AMPT-2025-005 · s3888.1 (AMPT) & s3888.2 (ATSI) |
Engineering | $14.1M | 08/01/2028 | 63 MW | 2026-10-06 TEAC |
| ATSI Transmission Zone M-3 Process
Niles Central – Packard 138 kV Line ATSI-2024-002 · s3362.1 |
Not printed | $12.6M | 12/31/2025 | Not printed | 2024-10-08 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 | MCDONALD STEEL; NILES; NILES CENTRAL → NILES CENTRAL | Not reported | Not reported |
| Substations named | NILES CENTRAL → MCDONALD STEEL; NILES; NILES CENTRAL | 2026-10-06 | Not reported |
| Substations named | NILES CENTRAL → MCDONALD STEEL; NILES; NILES CENTRAL | 2025-06-13 | 2026-01-16 |
| Substations named | MCDONALD STEEL; NILES; NILES CENTRAL → NILES CENTRAL | 2026-10-06 | 2026-10-06 |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-10-06 | TEAC Informational Only - ATSI Local Plan Submission of the Supplemental Projects for 2026 p. 71 |
Niles Central 138 kV substation | “At AMPT's Niles Central 138 kV substation, a single breaker failure of the 138 kV tiebreaker results in the loss of all load” 138 kV |
| 2026-09-23* | SRRTEP Western ATSI local plan submission of the supplemental projects for 2026 RTEP p. 71 |
Niles Central 138 kV substation | “At AMPT's Niles Central 138 kV substation” 138 kV |
| 2026-09-08* | SRRTEP Western ATSI local plan submission of the supplemental projects for 2024 RTEP p. 54 |
ATSI Transmission Zone M-3 Process Niles Central – Packard 138 kV Line | No role wording 138 kV |
| 2024-10-08 | TEAC Informational Only - ATSI Local Plan submission of supplemental project 2024 p. 54 |
ATSI Transmission Zone M-3 Process Niles Central – Packard 138 kV Line | No role wording 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.