HARRISON
SubstationOhio · MONONGAHELA POWER CO
HARRISON is an electric transmission substation in Ohio, operated by MONONGAHELA POWER CO. It is classified as extra-high-voltage (500 kv) and connects 8 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 |
|---|---|---|---|---|
| #25150 | 500 kV | MONONGAHELA POWER CO | IN SERVICE | 78.8 mi |
| #3410 | 500 kV | MONONGAHELA POWER CO | IN SERVICE | 54.5 mi |
| #35890 | 138 kV | OHIO POWER CO | IN SERVICE | 4.5 mi |
| #36236 | 138 kV | OHIO POWER CO | IN SERVICE | 4.5 mi |
| #60566 | 138 kV | OHIO POWER CO | IN SERVICE | 29.5 mi |
| #60773 | 138 kV | OHIO POWER CO | IN SERVICE | 15.3 mi |
| #64823 | 138 kV | OHIO POWER CO | IN SERVICE | 1.2 mi |
| #23786 | 138 kV | OHIO POWER CO | IN SERVICE | 0.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HARRISON, 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 |
|---|---|---|---|---|---|---|---|
| FLATLICK | Substation-Adjacent | OH | Hocking County | 765 kV | 1,000 MW | 3.2 yrs | 74.8 |
| JUG STREET | Substation-Adjacent | OH | Licking County | 345 kV | 600 MW | 3.2 yrs | 74.2 |
| TAP141206 | Substation-Adjacent | OH | Fairfield County | 345 kV | 600 MW | 3.2 yrs | 73.4 |
| Greenfield (JUG STREET - KIRK) | Greenfield | OH | Licking County | 345 kV | 600 MW | 3.2 yrs | 70.8 |
| UNKNOWN113877 | Substation-Adjacent | OH | Franklin County | 138 kV | 100 MW | 3.2 yrs | 70.5 |
| Greenfield (BIXBY - KIRK) | Greenfield | OH | Fairfield County | 345 kV | 600 MW | 3.2 yrs | 70.5 |
| TAP151653 | Substation-Adjacent | OH | Franklin County | 138 kV | 100 MW | 3.2 yrs | 70.5 |
| TAYLOR | Substation-Adjacent | OH | Franklin County | 138 kV | 100 MW | 3.2 yrs | 70.4 |
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 HARRISON 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.