Tidd
Named in 6 PJM planning documents for 5 projects, from October 18, 2024 to April 15, 2026.
Existingdescribed as
AEPzone
138 kV, 138kVkV as printed
6mentions
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 |
|---|---|---|---|---|---|
| AEP Transmission Zone: Baseline
Tidd Station Upgrades b3894.1 |
Not printed | $0.5M | 4/1/2029 | Not printed | 2024-11-15 SRRTEP Western |
| Tidd 138 kV Breaker “DD” Replacement b3960.1 |
Not printed | $0.773M | 6/1/2030 | Not printed | 2025-11-14 SRRTEP Western |
| AEP Transmission Zone: Baseline Tidd Station Upgrades | Not printed | $0.5M | 4/1/2029 | Not printed | 2024-10-18 SRRTEP Western |
| Tidd 138 kV Breaker “DD” Replacement | Not printed | $0.773M | 6/1/2030 | Not printed | 2025-10-17 SRRTEP Western |
| Canton Central, OH AEP-2025-OH021 |
Engineering | $21.961 M | 01/08/2028 | 300MW | 2026-04-15 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 | CANTON CENTRAL; TRITON → CANTON CENTRAL; TIDD; TRITON; WAGENHALS | 2026-10-06 | Not reported |
| Substations named | CANTON CENTRAL → CANTON CENTRAL; TIDD; TRITON; WAGENHALS | 2025-09-19 | 2026-04-15 |
| Substations named | CANTON CENTRAL; TIDD; TRITON; WAGENHALS → CANTON CENTRAL; TRITON | 2026-04-15 | 2026-10-06 |
Every mention
| Date | Document | Project | What the document says about it |
|---|---|---|---|
| 2026-10-07* | SRRTEP Western AEP local plan submission of the supplemental projects for 2026 RTEP p. 96 |
Canton Central, OH | No role wording 138 kV |
| 2026-04-15 | SRRTEP Western Item 04 - AEP Supplemental Projects p. 18 |
Canton Central, OH | No role wording |
| 2025-11-14 | SRRTEP Western Item 01 - SRRTEP West - Reliability Analysis Update p. 79 |
Tidd 138 kV Breaker “DD” Replacement | “Replace the overdutied Tidd 138 kV circuit breaker “DD"
with a 63 kA circuit breaker. (b3960.1)” 138 kV |
| 2025-10-17 | SRRTEP Western Item 01 - SRRTEP West - Reliability Analysis Update p. 74 |
Tidd 138 kV Breaker “DD” Replacement | “Tidd 138 kV Breaker “DD” Replacement” 138 kV |
| 2024-11-15 | SRRTEP Western Item 01 - SRRTEP West - Reliability Analysis Update p. 47 |
AEP Transmission Zone: Baseline Tidd Station Upgrades | “Replace limiting 138kV station conductor at Tidd” 138kV |
| 2024-10-18 | SRRTEP Western Item 01 - SRRTEP West - Reliability Analysis Update p. 46 |
AEP Transmission Zone: Baseline Tidd Station Upgrades | “Replace the limiting 138kV station conductor at Tidd” 138kV |
* 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.