Armstrong Substation
Named in 6 PJM planning documents for 6 projects, from October 8, 2024 to October 6, 2026.
Existingdescribed as
APSzone
138 kVkV as printed
8mentions
Also printed as: Armstrong
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 Relay Projects APS-2023-036, APS-2023-041 to APS-2023-043, APS-2023-045 to APS-2023-049 |
Not printed | $2.2 M | 11/29/2024 | Not printed | 2026-09-08* SRRTEP Western |
| Misoperation Relay Projects APS-2023-042 · s3109.1 |
Not printed | $2.5 M | 05/26/2023 | Not printed | 2024-10-08 TEAC |
| Misoperation Relay Projects APS-2023-075, APS-2023-079 to APS-2023-084, APS-2023-086, APS-2023-087 · s3194.1, s3195.1, s3196.1, s3197.1, s3198.1, s3199.1, s3200.1, s3201.1, s3202.1 |
Not printed | Not printed | Not printed | Not printed | 2024-10-08 TEAC |
| Misoperation Relay Projects APS-2023-082, APS-2023-083, APS-2023-084 · s3198.1, s3199.1, s3200.1 |
Not printed | Not printed | Not printed | Not printed | 2026-09-08* SRRTEP Western |
| Misoperation Relays: Armstrong - Kittanning 138 kV Line APS-2024-010 · s3865.1 |
Not printed | $3.44M | 09/10/2029 | Not printed | 2026-10-06 TEAC |
| Butler- Karns City 138 kV Line APS-2026-046 |
Not printed | Not printed | Not printed | Not printed | 2026-07-17 SRRTEP Western |
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 | FRANKLIN; PURSELY → ARMSTRONG; CABOT; EDGELAWN; FAIRVIEW; FRANKLIN; GILBOA; GRASSY FALLS; HOUSEVILLE; MCCALMONT; PRICE HILL; PRUNTYTOWN; PURSELY; SUTTON; TRISSLER | 2024-10-08 | Not reported |
| Substations named | ALL LUDLUM 4 JCT; ALLENPORT; ARMSTRONG; BRACKEN JCT; BREDINVILLE; BURMA; BUTLER; CABOT; CABREY JCT; CHARLEROI; DUPONT; EASTGATE T; EDGELAWN; FAIRVIEW; GRANT TOWN; LARKMEAD; LOYALHANNA; LUXOR; RIVESVILLE; SALTSBURG; SPRINGDALE; VANDERGRIFT; YOUNGWOOD; YUKON → BREDINVILLE; BUTLER; CABOT; SPRINGDALE | 2024-10-08 | Not reported |
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. 26 |
Misoperation Relays: Armstrong - Kittanning 138 kV Line | “At Armstrong Substation, replace disconnect switches, line trap, line turner and coax, CVT and relaying.” 138 kV |
| 2026-09-28* | SRRTEP Western APS local plan submission of the supplemental projects for 2026 RTEP p. 26 |
Misoperation Relays: Armstrong - Kittanning 138 kV Line | “At Armstrong Substation, replace disconnect switches” |
| 2026-09-08* | SRRTEP Western APS local plan submission of the supplemental projects for 2024 RTEP p. 50 |
Misoperation Relay Projects | “At Armstrong Substation, replace disconnect switches, substation conductor and relaying” 138 kV |
| 2026-09-08* | SRRTEP Western APS local plan submission of the supplemental projects for 2024 RTEP p. 74 |
Misoperation Relay Projects | “At Armstrong, replace disconnect switches, line trap, substation conductor and relaying” 138 kV |
| 2026-07-17 | SRRTEP Western Item 02 - APS Supplemental Projects p. 4 |
Butler- Karns City 138 kV Line | “Armstrong Substation is operated in an abnormal configuration by removing transmission facilities from service” |
| 2025-10-17 | SRRTEP Western Item 02 - APS Supplemental Projects p. 5 |
Misoperation Relays: Armstrong - Kittanning 138 kV Line | “At Armstrong Substation, replace disconnect switches” 138 kV |
| 2024-10-08 | TEAC Informational Only - APS Local Plan submission of supplemental project 2024 p. 50 |
Misoperation Relay Projects | “At Armstrong Substation, replace disconnect
switches, substation conductor and relaying” 138 kV |
| 2024-10-08 | TEAC Informational Only - APS Local Plan submission of supplemental project 2024 p. 74 |
Misoperation Relay Projects | “At Armstrong, replace disconnect switches, line trap, substation conductor 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.