DEWEY
SubstationTexas · PUBLIC SERVICE CO OF OKLAHOMA
DEWEY is an electric transmission substation in Texas, operated by PUBLIC SERVICE CO OF OKLAHOMA. 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 |
|---|---|---|---|---|
| #5033 | 138 kV | PUBLIC SERVICE CO OF OKLAHOMA | IN SERVICE | 20.4 mi |
| #13626 | 138 kV | — | IN SERVICE | 4.2 mi |
| #31807 | 138 kV | — | IN SERVICE | 19.6 mi |
| #36254 | 138 kV | — | IN SERVICE | 27.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of DEWEY, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN159779 | Substation-Adjacent | OK | Dewey County | 345 kV | 600 MW | 3.4 yrs | 70.5 |
| TATONGA | Substation-Adjacent | OK | Dewey County | 345 kV | 600 MW | 3.4 yrs | 69.3 |
| UNKNOWN149217 | Substation-Adjacent | OK | Dewey County | 345 kV | 600 MW | 3.4 yrs | 67.0 |
| Greenfield (TATONGA - MATHEWSON) | Greenfield | OK | Blaine County | 345 kV | 600 MW | 3.4 yrs | 66.3 |
| UNKNOWN149218 | Substation-Adjacent | OK | Major County | 138 kV | 100 MW | 3.4 yrs | 66.1 |
| UNKNOWN118882 | Substation-Adjacent | OK | Blaine County | 138 kV | 100 MW | 3.4 yrs | 65.9 |
| Greenfield (TATONGA - MATHEWSON) | Greenfield | OK | Blaine County | 345 kV | 600 MW | 3.4 yrs | 65.5 |
| UNKNOWN159778 | Substation-Adjacent | OK | Dewey County | 345 kV | 600 MW | 3.4 yrs | 64.1 |
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 DEWEY 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.