FIRSTENERGY HARRISON POWER STATION
SubstationWest Virginia · MONONGAHELA POWER CO
FIRSTENERGY HARRISON POWER STATION is an electric transmission substation in West Virginia, operated by MONONGAHELA POWER CO. It is classified as sub-transmission (138 kv) and connects 1 transmission line. 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #43600 | 138 kV | MONONGAHELA POWER CO | IN SERVICE | 0.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of FIRSTENERGY HARRISON POWER STATION, 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 |
|---|---|---|---|---|---|---|---|
| PRUNTYTOWN | Substation-Adjacent | WV | Taylor County | 500 kV | 1,000 MW | 3.0 yrs | 76.4 |
| FORT MARTIN | Substation-Adjacent | WV | Monongalia County | 500 kV | 1,000 MW | 3.0 yrs | 73.4 |
| HARRISON | Substation-Adjacent | WV | Harrison County | 500 kV | 1,000 MW | 3.0 yrs | 73.2 |
| UNKNOWN123481 | Substation-Adjacent | WV | Monongalia County | 500 kV | 1,000 MW | 3.0 yrs | 72.6 |
| Greenfield (HARRISON - PRUNTYTOWN) | Greenfield | WV | Taylor County | 500 kV | 1,000 MW | 3.0 yrs | 71.9 |
| Greenfield (HARRISON - BELMONT) | Greenfield | WV | Harrison County | 500 kV | 1,000 MW | 3.2 yrs | 71.8 |
| Greenfield (UNKNOWN123487 - HARRISON) | Greenfield | WV | Marion County | 500 kV | 1,000 MW | 3.0 yrs | 71.4 |
| Greenfield (UNKNOWN123487 - MOUNT STORM) | Greenfield | WV | Taylor County | 500 kV | 1,000 MW | 3.0 yrs | 70.6 |
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 FIRSTENERGY HARRISON POWER STATION substation, West Virginia. 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.