LEWISTON
SubstationCalifornia · TRINITY PUBLIC UTILITIES DISTRICT
LEWISTON is an electric transmission substation in California, operated by TRINITY PUBLIC UTILITIES DISTRICT. It is classified as sub-transmission (115 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
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 |
|---|---|---|---|---|
| #91109 | 115 kV | TRINITY PUBLIC UTILITIES DISTRICT | IN SERVICE | 7.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of LEWISTON, 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 |
|---|---|---|---|---|---|---|---|
| KESWICK | Substation-Adjacent | CA | Shasta County | 230 kV | 300 MW | 5.7 yrs | 57.9 |
| SHASTA | Substation-Adjacent | CA | Shasta County | 230 kV | 300 MW | 5.7 yrs | 56.9 |
| FLANNIGAN | Substation-Adjacent | CA | Shasta County | 230 kV | 300 MW | 5.7 yrs | 55.8 |
| SPRING CREEK | Substation-Adjacent | CA | Shasta County | 230 kV | 300 MW | 5.7 yrs | 55.1 |
| TRINITY | Substation-Adjacent | CA | Trinity County | 230 kV | 300 MW | 5.7 yrs | 53.7 |
| CARR | Substation-Adjacent | CA | Trinity County | 230 kV | 300 MW | 5.7 yrs | 53.0 |
| REDDING POWER | Substation-Adjacent | CA | Shasta County | 115 kV | 100 MW | 5.7 yrs | 52.3 |
| Greenfield (SHASTA - COTTONWOOD) | Greenfield | CA | Shasta County | 230 kV | 300 MW | 5.7 yrs | 50.0 |
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 LEWISTON substation, California. 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.