Horizon
Named in 4 PJM planning documents for 2 projects, from October 8, 2024 to March 14, 2025.
Newdescribed as
AEPzone
138 kVkV as printed
4mentions
Described as new: “proposed (submitted under PJM s3442.4) Horizon station” — source, page 13
Also printed as: Horizon station
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 |
|---|---|---|---|---|---|
| Central/NW OH, Indiana. AEP-2022-OH023, AEP-2022-OH034, AEP-2022-OH036, AEP-2022-OH045, AEP-2022-OH046, AEP-2022-OH075, AEP-2022-OH077, AEP-2023-OH016, AEP-2023-OH019, AEP-2023-OH032, AEP-2023-OH040, AEP-2023-OH044, AEP-2023-OH052, AEP-2023-OH063 · s3442.1-.30 |
Conceptual | $378.3M | 10/13/2027 | Not printed | 2024-10-08 TEAC |
| Horizon, OH AEP-2024-OH046 |
Engineering | $18.054 M | 07/15/2026 | approximately 300 MW | 2025-03-14 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 | HORIZON → BADGER; FIESTA; HORIZON; JUG ST | 2024-12-13 | 2025-03-14 |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-09-08* | SRRTEP Western AEP local plan submission of the supplemental projects for 2024 RTEP p. 132 |
Central/NW OH, Indiana. | “Construct a greenfield station” 138 kV |
| 2025-03-14 | SRRTEP Western Item 08 - AEP Supplemental Projects p. 13 |
Horizon, OH | “proposed (submitted under PJM s3442.4) Horizon station” 138 kV |
| 2024-12-13 | SRRTEP Western Item 17 - AEP Supplemental Projects p. 10 |
Horizon, OH | “proposed Horizon station” |
| 2024-10-08 | TEAC Informational Only - AEP Local Plan submission of supplemental projects 2024 p. 132 |
Central/NW OH, Indiana. | “Construct a greenfield station with (8) 80 kA, 4000 A circuit breakers” 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.