FOOTHILL
SubstationCalifornia
FOOTHILL is an electric transmission substation in California. It is classified as high-voltage (230 kv) and connects 0 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
Operator not catalogued for this substation.
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of FOOTHILL, 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 |
|---|---|---|---|---|---|---|---|
| DIABLO CANYON | Substation-Adjacent | CA | San Luis Obispo County | 500 kV | 1,000 MW | 8.2 yrs | 58.7 |
| FOOTHILL | Substation-Adjacent | CA | San Luis Obispo County | 230 kV | 300 MW | 8.2 yrs | 55.7 |
| MORRO BAY | Substation-Adjacent | CA | San Luis Obispo County | 230 kV | 300 MW | 8.2 yrs | 54.6 |
| OZ San Luis Obispo | Greenfield | CA | San Luis Obispo | — | — | 5.7 yrs | 53.7 |
| MESA | Substation-Adjacent | CA | San Luis Obispo County | 230 kV | 300 MW | 8.2 yrs | 53.5 |
| TEMPLETON | Substation-Adjacent | CA | San Luis Obispo County | 230 kV | 300 MW | 8.2 yrs | 53.4 |
| SAN LUIS OBISPO | Substation-Adjacent | CA | San Luis Obispo County | 115 kV | 100 MW | 8.2 yrs | 52.6 |
| EC Near Santa Maria Cogen Plant | Greenfield | CA | Santa Barbara | — | — | 5.7 yrs | 50.9 |
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 FOOTHILL substation, California. Pro and Enterprise plans unlock the full 147,272-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.