ARSENAL HILL
SubstationTexas · SOUTHWESTERN ELECTRIC POWER CO
ARSENAL HILL is an electric transmission substation in Texas, operated by SOUTHWESTERN ELECTRIC POWER CO. It is classified as sub-transmission (138 kv) and connects 4 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 |
|---|---|---|---|---|
| #7541 | 138 kV | SOUTHWESTERN ELECTRIC POWER CO | IN SERVICE | 3.1 mi |
| #32226 | 138 kV | SOUTHWESTERN ELECTRIC POWER CO | IN SERVICE | 6.1 mi |
| #34576 | 138 kV | SOUTHWESTERN ELECTRIC POWER CO | IN SERVICE | 22.1 mi |
| #37166 | 138 kV | — | — | 0.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ARSENAL HILL, 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 |
|---|---|---|---|---|---|---|---|
| SAREPTA | Substation-Adjacent | LA | Webster Parish | 345 kV | 600 MW | 3.4 yrs | 72.0 |
| LONGWOOD | Substation-Adjacent | LA | Caddo Parish | 345 kV | 600 MW | 3.4 yrs | 70.5 |
| MC WILLIE | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 3.4 yrs | 70.3 |
| TAP161114 | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 3.4 yrs | 69.7 |
| LINWOOD | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 3.4 yrs | 69.0 |
| TRICHEL STREET | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 3.4 yrs | 68.8 |
| WESTERN ELECTRIC | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 3.4 yrs | 68.6 |
| TAP141990 | Substation-Adjacent | LA | Caddo Parish | 138 kV | 100 MW | 3.4 yrs | 68.6 |
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 ARSENAL HILL substation, Texas. 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.