DIANA
SubstationTexas · SOUTHWESTERN ELECTRIC POWER CO
DIANA is an electric transmission substation in Texas, operated by SOUTHWESTERN ELECTRIC POWER CO. It is classified as high-voltage (345 kv) and connects 5 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
Ownership & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #14960 | 345 kV | SOUTHWESTERN ELECTRIC POWER CO | IN SERVICE | 57.1 mi |
| #87155 | 345 kV | SOUTHWESTERN ELECTRIC POWER CO | IN SERVICE | 23.8 mi |
| #87621 | 345 kV | SOUTHWESTERN ELECTRIC POWER CO | IN SERVICE | 23.8 mi |
| #90707 | 138 kV | UPSHUR RURAL ELEC COOP CORP | IN SERVICE | 0.1 mi |
| #91485 | 138 kV | UPSHUR RURAL ELEC COOP CORP | IN SERVICE | 0.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of DIANA, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN310398 | Substation-Adjacent | TX | Camp County | 345 kV | 600 MW | 3.4 yrs | 71.1 |
| DIANA | Substation-Adjacent | TX | Upshur County | 345 kV | 600 MW | 3.4 yrs | 70.9 |
| UNKNOWN309146 | Substation-Adjacent | TX | Morris County | 345 kV | 600 MW | 3.4 yrs | 70.5 |
| UNKNOWN301295 | Substation-Adjacent | TX | Marion County | 345 kV | 600 MW | 3.4 yrs | 70.1 |
| UNKNOWN306638 | Substation-Adjacent | TX | Camp County | 345 kV | 600 MW | 3.4 yrs | 69.8 |
| UNKNOWN305499 | Substation-Adjacent | TX | Marion County | 345 kV | 600 MW | 3.4 yrs | 69.6 |
| UNKNOWN302347 | Substation-Adjacent | TX | Marion County | 345 kV | 600 MW | 3.4 yrs | 69.6 |
| UNKNOWN304659 | Substation-Adjacent | TX | Gregg County | 345 kV | 600 MW | 3.4 yrs | 69.0 |
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 DIANA 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.