BUTLER
SubstationPennsylvania · WEST PENN POWER CO
BUTLER is an electric transmission substation in Pennsylvania, operated by WEST PENN POWER CO. It is classified as sub-transmission (138 kv) and connects 6 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #201 | 138 kV | WEST PENN POWER CO | IN SERVICE | 7.0 mi |
| #2588 | 138 kV | WEST PENN POWER CO | IN SERVICE | 7.8 mi |
| #24002 | 138 kV | WEST PENN POWER CO | IN SERVICE | 4.4 mi |
| #26295 | 138 kV | WEST PENN POWER CO | IN SERVICE | 2.0 mi |
| #39217 | 138 kV | WEST PENN POWER CO | IN SERVICE | 7.2 mi |
| #46276 | 138 kV | WEST PENN POWER CO | IN SERVICE | 15.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of BUTLER, 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 |
|---|---|---|---|---|---|---|---|
| TAP151899 | Substation-Adjacent | PA | Allegheny County | 345 kV | 600 MW | 3.0 yrs | 77.7 |
| CRANBERRY | Substation-Adjacent | PA | Butler County | 500 kV | 1,000 MW | 3.0 yrs | 75.7 |
| CABOT | Substation-Adjacent | PA | Butler County | 500 kV | 1,000 MW | 3.0 yrs | 74.3 |
| CHESWICK | Substation-Adjacent | PA | Allegheny County | 138 kV | 100 MW | 3.0 yrs | 73.5 |
| UNKNOWN123770 | Substation-Adjacent | PA | Allegheny County | 138 kV | 100 MW | 3.0 yrs | 73.5 |
| CHESWICK POWER PLANT | Substation-Adjacent | PA | Allegheny County | 138 kV | 100 MW | 3.0 yrs | 73.4 |
| MONTOUR | Substation-Adjacent | PA | Allegheny County | 138 kV | 100 MW | 3.0 yrs | 73.2 |
| UNKNOWN123789 | Substation-Adjacent | PA | Allegheny County | 138 kV | 100 MW | 3.0 yrs | 73.2 |
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 BUTLER substation, Pennsylvania. 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.