HANNA
SubstationOhio · AMERICAN TRANSMISSION SYSTEMS, INC.
HANNA is an electric transmission substation in Ohio, operated by AMERICAN TRANSMISSION SYSTEMS, INC.. It is classified as high-voltage (345 kv) and connects 12 transmission lines. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Ownership & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #28845 | 345 kV | AMERICAN TRANSMISSION SYSTEMS, INC. | IN SERVICE | 28.1 mi |
| #36875 | 345 kV | — | IN SERVICE | 44.1 mi |
| #18173 | 345 kV | DUQUESNE LIGHT CO | IN SERVICE | 60.1 mi |
| #60775 | 345 kV | AMERICAN TRANSMISSION SYSTEMS, INC. | IN SERVICE | 61.5 mi |
| #60777 | 345 kV | AMERICAN TRANSMISSION SYSTEMS, INC. | IN SERVICE | 72.2 mi |
| #4069 | 345 kV | AMERICAN TRANSMISSION SYSTEMS, INC. | IN SERVICE | 32.8 mi |
| #63267 | 138 kV | — | IN SERVICE | 17.0 mi |
| #21460 | 138 kV | — | IN SERVICE | 4.9 mi |
| #37965 | 138 kV | — | IN SERVICE | 16.3 mi |
| #42102 | 138 kV | — | IN SERVICE | 12.1 mi |
| #43538 | 138 kV | — | IN SERVICE | 12.9 mi |
| #46767 | 138 kV | — | IN SERVICE | 4.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HANNA, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| SOUTH CANTON 765KV | Substation-Adjacent | OH | Stark County | 765 kV | 1,000 MW | 3.2 yrs | 79.8 |
| UNKNOWN137113 | Substation-Adjacent | OH | Geauga County | 345 kV | 600 MW | 3.2 yrs | 77.7 |
| HIGHLAND | Substation-Adjacent | OH | Stark County | 345 kV | 600 MW | 3.2 yrs | 77.6 |
| CHAMBERLIN | Substation-Adjacent | OH | Summit County | 345 kV | 600 MW | 3.2 yrs | 76.7 |
| UNKNOWN162533 | Substation-Adjacent | OH | Mahoning County | 345 kV | 600 MW | 3.2 yrs | 76.3 |
| SOUTH EAST CANTON | Substation-Adjacent | OH | Stark County | 345 kV | 600 MW | 3.2 yrs | 74.6 |
| TAP162534 | Substation-Adjacent | OH | Trumbull County | 345 kV | 600 MW | 3.2 yrs | 74.2 |
| UNKNOWN153863 | Substation-Adjacent | OH | Stark County | 345 kV | 600 MW | 3.2 yrs | 74.2 |
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for HANNA substation, Ohio. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.