MENDOCINO
SubstationCalifornia · PACIFIC GAS & ELECTRIC COMPANY
MENDOCINO is an electric transmission substation in California, operated by PACIFIC GAS & ELECTRIC COMPANY. It is classified as sub-transmission (115 kv) and connects 3 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 |
|---|---|---|---|---|
| #83712 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 61.0 mi |
| #84408 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 24.2 mi |
| #92092 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 4.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MENDOCINO, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN300355 | Substation-Adjacent | CA | Lake County | 115 kV | 100 MW | 5.7 yrs | 53.1 |
| CALPELLA | Substation-Adjacent | CA | Mendocino County | 115 kV | 100 MW | 5.7 yrs | 51.5 |
| MENDOCINO | Substation-Adjacent | CA | Mendocino County | 115 kV | 100 MW | 5.7 yrs | 49.2 |
| Greenfield (HOPLAND - CLOVERDALE) | Greenfield | CA | Lake County | 115 kV | 100 MW | 5.7 yrs | 47.2 |
| Greenfield (CLOVERDALE - None) | Greenfield | CA | Lake County | 115 kV | 100 MW | 5.7 yrs | 46.7 |
| Greenfield (MENDOCINO - CORTINA) | Greenfield | CA | Lake County | 115 kV | 100 MW | 5.7 yrs | 46.2 |
| HOPLAND | Substation-Adjacent | CA | Lake County | 115 kV | 100 MW | 5.7 yrs | 44.7 |
| Greenfield (CLOVERDALE - None) | Greenfield | CA | Lake County | 115 kV | 100 MW | 5.7 yrs | 44.1 |
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 MENDOCINO 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.