Mansfield
Named in 4 PJM planning documents for 2 projects, from July 8, 2025 to October 6, 2026.
Existingdescribed as
ATSIzone
345 kVkV as printed
4mentions
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 |
|---|---|---|---|---|---|
| Beaver Valley – Hanna 345 kV Line and Hanna – Mansfield 345 kV Line ATSI-2024-013 · s3715.1 |
Not printed | $53.35M | 5/31/2028 | Not printed | 2025-10-08 TEAC |
| Chamberlain-Harding 345 kV S-21 line ATSI-2026-067 |
Not printed | Not printed | 11/14/2031 | 500 MW | 2026-10-06 TEAC |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-10-06 | TEAC Item 06 - ATSI Supplemental Projects - Presentation p. 3 |
Chamberlain-Harding 345 kV S-21 line | No role wording 345 kV |
| 2026-09-08* | SRRTEP Western ATSI local plan submission of the supplemental projects for 2025 RTEP p. 44 |
Beaver Valley – Hanna 345 kV Line and Hanna – Mansfield 345 kV Line | “At Beaver Valley, Mansfield and Hanna substations:
▪ Adjust relay settings” 345 kV |
| 2025-10-08 | TEAC Informational Only - ATSI Local Plan Submission of the Supplemental Projects for 2025 p. 44 |
Beaver Valley – Hanna 345 kV Line and Hanna – Mansfield 345 kV Line | “At Beaver Valley, Mansfield and Hanna substations:
§ Adjust relay settings” 345 kV |
| 2025-07-08 | TEAC Item 03 - ATSI Supplemental Projects p. 6 |
Beaver Valley – Hanna 345 kV Line and Hanna – Mansfield 345 kV Line | “At Beaver Valley, Mansfield and Hanna substations: § Adjust relay settings” |
* 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.