Smithton Substation
Named in 5 PJM planning documents for 2 projects, from October 17, 2025 to October 6, 2026.
Existingdescribed as
APSzone
138 kVkV as printed
7mentions
Also printed as: Smithton
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 |
|---|---|---|---|---|---|
| Misoperation Relays: Shepler Hill Junction (Charleroi - Mitchell - Yukon) 138 kV Line APS-2024-102 · s3866.1 |
Not printed | $3.71M | 10/31/2028 | Not printed | 2026-10-06 TEAC |
| Smithton 138 kV Substation APS-2026-001 · s3936.1 |
Not printed | $11.52 M | 12/17/2027 | 10 MW | 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 changed | Printed values | Earlier | Later |
|---|---|---|---|
| Substations named | ALLENPORT; CHARLEROI; IRON BRIDGE; MITCHELL; SMITHTON; YUKON → ALLENPORT; BELMON; CHARLEROI; IRON BRIDGE; MITCHELL; SMITHTON; YUKON | 2026-01-16 | 2026-07-17 |
| Substations named | ALLENPORT; BELMON; CHARLEROI; IRON BRIDGE; MITCHELL; SMITHTON; YUKON → SMITHTON | 2026-07-17 | 2026-10-06 |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-10-06 | TEAC Informational Only - APS Local Plan Submission of the Supplemental Projects for 2026 p. 29 |
Misoperation Relays: Shepler Hill Junction (Charleroi - Mitchell - Yukon) 138 kV Line | “At Smithton Substation, replace disconnect switches, and relaying.” 138 kV |
| 2026-10-06 | TEAC Informational Only - APS Local Plan Submission of the Supplemental Projects for 2026 p. 82 |
Smithton 138 kV Substation | “At Smithton Substation:
Eliminate the normally open bus tie configuration” 138 kV |
| 2026-09-28* | SRRTEP Western APS local plan submission of the supplemental projects for 2026 RTEP p. 29 |
Misoperation Relays: Shepler Hill Junction (Charleroi - Mitchell - Yukon) 138 kV Line | “At Smithton Substation, replace disconnect switches, and relaying.” |
| 2026-09-28* | SRRTEP Western APS local plan submission of the supplemental projects for 2026 RTEP p. 82 |
Smithton 138 kV Substation | “Smithton Substation is currently configured as a 138 kV straight bus” 138 kV |
| 2026-07-17 | SRRTEP Western Item 02 - APS Supplemental Projects p. 12 |
Smithton 138 kV Substation | “At Smithton Substation:
§ Eliminate the normally open bus tie configuration by installing two 138 kV line breakers and
a bus tie breaker.” 138 kV |
| 2026-01-16 | SRRTEP Western Item 03 - APS Supplemental Projects p. 3 |
Smithton 138 kV Substation | “Smithton Substation is currently configured as a 138 kV straight bus” 138 kV |
| 2025-10-17 | SRRTEP Western Item 02 - APS Supplemental Projects p. 8 |
Misoperation Relays: Shepler Hill Junction (Charleroi - Mitchell - Yukon) 138 kV Line | “At Smithton Substation, replace disconnect switches, and relaying” |
* 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.