SEGS IX
SubstationNevada · AZUSA LIGHT & POWER
SEGS IX is an electric transmission substation in Nevada, operated by AZUSA LIGHT & POWER. It is classified as sub-transmission (138 kv) and connects 1 transmission line. 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 |
|---|---|---|---|---|
| #81838 | 220 kV | AZUSA LIGHT & POWER | IN SERVICE | 1.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SEGS IX, 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 |
|---|---|---|---|---|---|---|---|
| SEGS IX | Substation-Adjacent | CA | San Bernardino County | 220 kV | 100 MW | 5.8 yrs | 60.6 |
| Greenfield (ADELANTO - MARKETPLACE) | Greenfield | CA | San Bernardino County | 500 kV | 1,000 MW | 5.8 yrs | 59.6 |
| Greenfield (ADELANTO - MCCULLOUGH) | Greenfield | CA | Los Angeles County | 500 kV | 1,000 MW | 5.8 yrs | 58.4 |
| Greenfield (INTERMOUNTAIN - ADELANTO) | Greenfield | CA | San Bernardino County | 500 kV | 1,000 MW | 5.7 yrs | 58.0 |
| KRAMER | Substation-Adjacent | CA | Los Angeles County | 230 kV | 300 MW | 5.8 yrs | 58.0 |
| SANDLOT | Substation-Adjacent | CA | San Bernardino County | 230 kV | 300 MW | 5.7 yrs | 57.9 |
| TAP310918 | Substation-Adjacent | CA | Los Angeles County | 115 kV | 100 MW | 5.8 yrs | 57.2 |
| MOGEN | Substation-Adjacent | CA | Kern County | 115 kV | 100 MW | 5.8 yrs | 57.1 |
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 SEGS IX substation, Nevada. 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.