MARTIN
SubstationCalifornia · PACIFIC GAS & ELECTRIC COMPANY
MARTIN is an electric transmission substation in California, operated by PACIFIC GAS & ELECTRIC COMPANY. It is classified as high-voltage (230 kv) and connects 14 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 |
|---|---|---|---|---|
| #82464 | 230 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 6.9 mi |
| #87371 | 230 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 7.0 mi |
| #87742 | 230 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 25.2 mi |
| #88615 | 230 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 11.8 mi |
| #91391 | 230 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 13.3 mi |
| #92736 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 3.3 mi |
| #92089 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 3.0 mi |
| #92220 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 3.0 mi |
| #91027 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 3.0 mi |
| #91348 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 4.0 mi |
| #82978 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 4.0 mi |
| #85926 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 3.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MARTIN, 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 |
|---|---|---|---|---|---|---|---|
| MARTIN | Substation-Adjacent | CA | San Mateo County | 230 kV | 300 MW | 5.7 yrs | 63.4 |
| ROSSMOOR | Substation-Adjacent | CA | Contra Costa County | 230 kV | 300 MW | 5.7 yrs | 62.7 |
| CASTRO VALLEY | Substation-Adjacent | CA | Alameda County | 230 kV | 300 MW | 5.7 yrs | 62.4 |
| EMBARCADERO | Substation-Adjacent | CA | Contra Costa County | 230 kV | 300 MW | 5.7 yrs | 62.4 |
| POTRERO | Substation-Adjacent | CA | San Mateo County | 230 kV | 300 MW | 5.7 yrs | 62.1 |
| S.L.A.C. | Substation-Adjacent | CA | San Mateo County | 230 kV | 300 MW | 5.7 yrs | 62.0 |
| San Francisco Electric Reliability Proj | Brownfield | CA | Contra Costa | — | 152 MW | — | 61.9 |
| CASTRO VALLEY TAP | Substation-Adjacent | CA | Alameda County | 230 kV | 300 MW | 5.7 yrs | 61.8 |
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 MARTIN 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.