Greenfield
Named in 13 PJM planning documents for 11 projects, from November 6, 2024 to October 6, 2026.
Existingdescribed as
ATSIzone
138 kV, 69 kVkV as printed
14mentions
Also printed as: Greenfield 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 |
|---|---|---|---|---|---|
| Cluster 2 (ATSI) b3925.1 |
Not printed | $217.32M | 6/1/2029 | Not printed | 2025-01-07 TEAC |
| Greenfield 69 kV B-24, B-272, B-274 CB Replacement b3984.1 |
Not printed | $1.53M | 6/1/2030 | Not printed | 2025-11-14 SRRTEP Western |
| Cluster 2 (ATSI) | Not printed | $217.32M | 6/1/2029 | Not printed | 2024-12-03 TEAC |
| Cluster 2 (ATSI) | Not printed | Not printed | Not printed | Not printed | 2024-11-06 TEAC |
| Rebuild/Reconductor existing 138 kV lines/Terminal upgrades at 345 kV substations | Not printed | 265.1 | Not printed | Not printed | 2024-11-19 TEAC |
| Greenfield 69 kV B-24, B-272, B-274 CB Replacement | Not printed | $1.53M | 6/1/2030 | Not printed | 2025-10-17 SRRTEP Western |
| New Departure 345 kV Customer Connection ATSI-2024-056 · s3660.1 |
Not printed | $99.1 M | November 28, 2029 | Not printed | 2025-10-08 TEAC |
| Black River-Shinrock 69 kV Rebuild ATSI-2024-072 |
Conceptual | $67.65M | 12/31/2029 | Not printed | 2026-07-17 SRRTEP Western |
| Huron Area ATSI-2025-001 |
Not printed | Not printed | Not printed | approximately 40 MVA | 2025-01-17 SRRTEP Western |
| Lemoyne Substation Upgrades for MISO Tranche 2.1 ATSI-2025-004 · s3844.1 |
Not printed | $100.86M | 6/1/2032 | Not printed | 2026-10-06 TEAC |
| Greenfield Substation ATSI-2026-047 |
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 | AXTEL; BAUMHART; BLACK RIVER; SHINROCK; WASHINGTON → AXTEL; BAUMHART; BLACK RIVER; GREENFIELD; SHINROCK; WASHINGTON | 2024-10-18 | 2026-07-17 |
| Substations named | AXTEL; BAUMHART; BLACK RIVER; GREENFIELD; SHINROCK; WASHINGTON → SHINROCK | 2026-07-17 | 2026-10-06 |
| Cost estimate | $15.6 M → $100.86 M | 2025-03-04 | 2025-12-08 |
| Substations named | LAPLAISANCE CREEK; LEMOYNE; MAJESTIC; MAPLE → LEMOYNE | 2025-02-04 | 2025-03-04 |
| Substations named | LEMOYNE → GREENFIELD; LAKEVIEW; LEMOYNE; OTTAWA | 2025-03-04 | 2025-12-08 |
| Substations named | GREENFIELD; LAKEVIEW; LEMOYNE; OTTAWA → GREENFIELD; LEMOYNE; OTTAWA | 2025-12-08 | 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. 19 |
Lemoyne Substation Upgrades for MISO Tranche 2.1 | “At Greenfield Substation: Install one circuit breaker and associated disconnects.” |
| 2026-09-23* | SRRTEP Western ATSI local plan submission of the supplemental projects for 2026 RTEP p. 19 |
Lemoyne Substation Upgrades for MISO Tranche 2.1 | “At Greenfield Substation: Install one circuit breaker and associated disconnects.” |
| 2026-09-08* | SRRTEP Western ATSI local plan submission of the supplemental projects for 2025 RTEP p. 30 |
New Departure 345 kV Customer Connection | “Re-terminate the lines from Ford Substation and Greenfield Substation into the New Departure Substation.” 138 kV |
| 2026-07-17 | SRRTEP Western Item 03 - ATSI Supplemental Projects p. 26 |
Black River-Shinrock 69 kV Rebuild | No role wording 69 kV |
| 2026-07-17 | SRRTEP Western Item 03 - ATSI Supplemental Projects p. 5 |
Greenfield Substation | “The Greenfield Substation control house is congested.” |
| 2025-12-08 | TEAC Item 04 - ATSI Supplemental Projects p. 4 |
Lemoyne Substation Upgrades for MISO Tranche 2.1 | “At Greenfield Substation: Install one circuit breaker” 138 kV |
| 2025-11-14 | SRRTEP Western Item 01 - SRRTEP West - Reliability Analysis Update p. 99 |
Greenfield 69 kV B-24, B-272, B-274 CB Replacement | “Replace overdutied Greenfield 69 kV circuit breakers B-24, B-272, B-274” 69 kV |
| 2025-10-17 | SRRTEP Western Item 01 - SRRTEP West - Reliability Analysis Update p. 94 |
Greenfield 69 kV B-24, B-272, B-274 CB Replacement | “Greenfield 69 kV B-24, B-272, B-274 CB Replacement” 69 kV |
| 2025-10-08 | TEAC Informational Only - ATSI Local Plan Submission of the Supplemental Projects for 2025 p. 30 |
New Departure 345 kV Customer Connection | “Upgrade relaying/adjust relay settings at Greenfield, Nasa and Ford substations” 138 kV |
| 2025-01-17 | SRRTEP Western Item 05 - ATSI Supplemental Projects p. 4 |
Huron Area | “opening breaker at Greenfield Substation” |
| 2025-01-07 | TEAC Item 12 - Reliability Analysis Update p. 51 |
Cluster 2 (ATSI) | No role wording 138 kV |
| 2024-12-03 | TEAC Item 11 - Reliability Analysis Update p. 72 |
Cluster 2 (ATSI) | No role wording 138 kV |
| 2024-11-19 | TEAC Item 1 - Reliability Analysis Update p. 32 |
Rebuild/Reconductor existing 138 kV lines/Terminal upgrades at 345 kV substations | No role wording 138 kV |
| 2024-11-06 | TEAC Item 13 - Reliability Analysis Update p. 58 |
Cluster 2 (ATSI) | 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.