MESA
SubstationCalifornia · AZUSA LIGHT & POWER
MESA is an electric transmission substation in California, operated by AZUSA LIGHT & POWER. It is classified as high-voltage (230 kv) and connects 13 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 |
|---|---|---|---|---|
| #81129 | 230 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 35.2 mi |
| #90512 | 230 kV | — | IN SERVICE | 9.5 mi |
| #90911 | 230 kV | — | IN SERVICE | 11.0 mi |
| #91033 | 230 kV | AZUSA LIGHT & POWER | IN SERVICE | 12.2 mi |
| #92379 | 230 kV | AZUSA LIGHT & POWER | IN SERVICE | 4.9 mi |
| #86101 | 230 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 29.5 mi |
| #86118 | 230 kV | — | IN SERVICE | 13.9 mi |
| #89497 | 230 kV | — | IN SERVICE | 12.6 mi |
| #89661 | 230 kV | — | IN SERVICE | 24.3 mi |
| #83896 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 14.8 mi |
| #83897 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 14.8 mi |
| #88402 | 115 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 4.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MESA, 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 |
|---|---|---|---|---|---|---|---|
| SANTA CLARA | Substation-Adjacent | CA | Ventura County | 230 kV | 300 MW | 5.7 yrs | 63.0 |
| Greenfield (VINCENT - MIDWAY) | Greenfield | CA | Ventura County | 500 kV | 1,000 MW | 5.8 yrs | 60.2 |
| Greenfield (VINCENT - MIDWAY) | Greenfield | CA | Ventura County | 500 kV | 1,000 MW | 5.8 yrs | 60.2 |
| Greenfield (MIDWAY - VINCENT) | Greenfield | CA | Ventura County | 500 kV | 1,000 MW | 5.8 yrs | 59.4 |
| MESA | Substation-Adjacent | CA | Ventura County | 230 kV | 300 MW | 5.7 yrs | 59.2 |
| MOORPARK | Substation-Adjacent | CA | Ventura County | 230 kV | 300 MW | 5.7 yrs | 57.9 |
| Greenfield (MOORPARK - SANTA CLARA) | Greenfield | CA | Ventura County | 230 kV | 300 MW | 5.7 yrs | 57.7 |
| ORMOND BEACH | Substation-Adjacent | CA | Ventura County | 230 kV | 300 MW | 5.7 yrs | 57.5 |
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 MESA 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.