San Onofre Nuclear Generating Station
BrownfieldSan Clemente, San Diego, California · Southern California Edison Co
San Onofre Nuclear Generating Station is a nuclear plant in San Clemente, San Diego, California, retired 2013-06-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 2,254 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.
Former use & capacity
Grid hookup & remediation
Site conditions & market — San Diego County
County-level intelligence for this site's location — the power economics, water, hazard, connectivity, and workforce a developer screens before ever visiting. Assembled from FEMA NRI, BLS QCEW, FCC BDC, USGS water-use, and EIA.
Market & workforce
Power economics & interconnection
Water & cooling
Hazard, flood & connectivity
County-level context — address-level utility offerings and flood zoning vary within the county. Confirm site-specific service with the utility and a Phase I ESA.
Nearby brownfield & retired-generation sites
A proximity screen of other retired-plant, contaminated, and EPA-flagged sites near San Onofre Nuclear Generating Station — the environmental neighborhood, ranked by legacy grid capacity.
| Site | Former use | Legacy MW | Distance | Cleanup status |
|---|---|---|---|---|
| Carlsbad Energy Center | natural gas plant | 106 | 20.3 mi | — |
| Margarita Energy Center | natural gas plant | 48 | 13.2 mi | — |
Derived from GridCensus's retired-generator & EPA brownfield dataset. Not a substitute for an ASTM E1527 Phase I environmental radius report.
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Nearby datacenter candidate sites
Scored candidate sites near San Onofre Nuclear Generating Station, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| VALLEY | Substation-Adjacent | CA | Orange County | 500 kV | 1,000 MW | 8.2 yrs | 61.8 |
| INLAND EMPIRE | Substation-Adjacent | CA | Orange County | 500 kV | 1,000 MW | 8.2 yrs | 61.8 |
| SAN ONOFRE | Substation-Adjacent | CA | Orange County | 230 kV | 300 MW | 8.2 yrs | 58.1 |
| JOHANNA | Substation-Adjacent | CA | Orange County | 230 kV | 300 MW | 8.2 yrs | 57.4 |
| ENCINA | Substation-Adjacent | CA | San Diego County | 230 kV | 300 MW | 8.2 yrs | 56.4 |
| SANTIAGO | Substation-Adjacent | CA | Orange County | 230 kV | 300 MW | 8.2 yrs | 56.3 |
| ELLIS | Substation-Adjacent | CA | Orange County | 230 kV | 300 MW | 8.2 yrs | 56.0 |
| SHADOWRIDGE | Substation-Adjacent | CA | San Diego County | 230 kV | 300 MW | 8.2 yrs | 55.8 |
Nearby internet exchanges
- Centersquare Los Angeles (LAX3)Irvine, CA · 13 networks
- LightEdge San Diego 1 (SAN1)San Diego, CA · 7 networks
- EdgeConneX San Diego (EDCSDG01)San Diego, CA · 7 networks
- LightEdge San Diego 2 (SAN2)San Diego, CA · 6 networks
See all datacenter sites in California →
Dataset updated . Screening estimates derived from public data sources.
Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for San Onofre Nuclear Generating Station, San Clemente, San Diego, 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.