Bells Mill
Named in 3 PJM planning documents for 3 projects, from December 8, 2025 to January 6, 2026.
Existingdescribed as
PEPCOzone
138kV, 230/138 kVkV as printed
3mentions
Also printed as: Bells Mill · Bells Mill 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 |
|---|---|---|---|---|---|
| Exelon/PEPCO Cluster b4052.1 |
Not printed | $282.16 M | 6/1/2032 | Not printed | 2026-01-06 TEAC |
| Bells Mill 138kV 8BT Breaker Replacement PEP-2023-005 · s3539.1 |
Engineering | $675k | 10/01/25 | Not printed | 2026-09-08* SRRTEP Mid-Atlantic |
| PEPCO Transmission Zone: Baseline Exelon/PEPCO Cluster 2025-W1-919 |
Not printed | $282.16 M | 6/1/2031 | Not printed | 2025-12-08 TEAC |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-09-08* | SRRTEP Mid-Atlantic PEPCO local plan submission for 2024 RTEP p. 31 |
Bells Mill 138kV 8BT Breaker Replacement | “138kV circuit breaker 8BT at Bells Mill substation was
installed in 1977” 138kV |
| 2026-01-06 | TEAC Item 09 - Reliability Analysis Update p. 25 |
Exelon/PEPCO Cluster | “Replace Bells Mill T3 XF with new PEPCO standard 260 MVA 230/138 kV Transformer” 230/138 kV |
| 2025-12-08 | TEAC Item 11 - Reliability Analysis Update p. 60 |
PEPCO Transmission Zone: Baseline Exelon/PEPCO Cluster | “Replace Bells Mill T3 XF with new PEPCO standard 260 MVA 230/138 kV Transformer” 230/138 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.