SPEARMAN CITY
SubstationTexas · SOUTHWESTERN PUBLIC SERVICE CO.
SPEARMAN CITY is an electric transmission substation in Texas, operated by SOUTHWESTERN PUBLIC SERVICE CO.. It is classified as sub-transmission (115 kv) and connects 2 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 |
|---|---|---|---|---|
| #82670 | 115 kV | SOUTHWESTERN PUBLIC SERVICE CO. | IN SERVICE | 8.5 mi |
| #82795 | 115 kV | SOUTHWESTERN PUBLIC SERVICE CO. | IN SERVICE | 17.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SPEARMAN CITY, 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 |
|---|---|---|---|---|---|---|---|
| HITCHLAND | Substation-Adjacent | OK | Texas County | 345 kV | 600 MW | 3.4 yrs | 68.7 |
| PRINGLE | Substation-Adjacent | TX | Hutchinson County | 230 kV | 300 MW | 3.4 yrs | 65.8 |
| UNKNOWN148745 | Substation-Adjacent | TX | Ochiltree County | 345 kV | 600 MW | 3.5 yrs | 65.8 |
| TAP175129 | Substation-Adjacent | OK | Texas County | 115 kV | 100 MW | 3.4 yrs | 64.3 |
| COLE | Substation-Adjacent | TX | Ochiltree County | 115 kV | 100 MW | 3.4 yrs | 63.9 |
| BEAVER COUNTY | Substation-Adjacent | TX | Ochiltree County | 345 kV | 600 MW | 3.5 yrs | 63.9 |
| Greenfield (BEAVER COUNTY - HITCHLAND) | Greenfield | OK | Texas County | 345 kV | 600 MW | 3.4 yrs | 63.5 |
| Greenfield (UNKNOWN209699 - HITCHLAND) | Greenfield | OK | Texas County | 345 kV | 600 MW | 3.4 yrs | 63.5 |
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 SPEARMAN CITY 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.