Mountain Substation
Named in 3 PJM planning documents for 3 projects, from March 10, 2026 to July 7, 2026.
Existingdescribed as
UGIzone
230kV, 66kVkV as printed
3mentions
Also printed as: Mountain
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 |
|---|---|---|---|---|---|
| UGI-2022-0001 | Engineering | $6M | 11/2025 | Not printed | 2026-09-08* SRRTEP Mid-Atlantic |
| UGI Utilities: Supplemental UGI-2026-0001 |
Engineering | $94 M | 09/30/2029 | 200MW | 2026-03-10 TEAC |
| UGI-2026-0003 | Engineering | $107.2 M | 03/29/2030 | 500MW | 2026-07-07 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 |
|---|---|---|---|
| In-service date | Q4 of 2027 → 09/30/2029 | 2026-01-15 | 2026-03-10 |
| Substations named | HUNLOCK CREEK → MOUNTAIN; NEWPORT | 2026-01-15 | 2026-03-10 |
| In-service date | Q3 of 2029 and an additional 250MW in Q1 of 2030 → 03/29/2030 | 2026-06-02 | 2026-07-07 |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-09-08* | SRRTEP Mid-Atlantic UGI local plan submission for 2024 RTEP p. 2 |
UGI-2022-0001 | No role wording 66kV |
| 2026-07-07 | TEAC Item 04 - UGI Supplemental Projects p. 4 |
UGI-2026-0003 | “Mountain Substation 230kV High-Side Improvement: Adds 230kV bus tie breakers as well as two line breakers.” 230kV |
| 2026-03-10 | TEAC Item 04 - UGI Supplemental Projects p. 6 |
UGI Utilities: Supplemental | “An upgrade to the 66kV bus at Mountain Substation is needed” 66kV |
* 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.