Black Rock III
BrownfieldCalipatria, Imperial, California · CE Obsidian Energy LLC
Black Rock III is a former geothermal site in Calipatria, Imperial, California. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 70 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 — Imperial 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 Black Rock III — the environmental neighborhood, ranked by legacy grid capacity.
| Site | Former use | Legacy MW | Distance | Cleanup status |
|---|---|---|---|---|
| Black Rock II | former geothermal site | 70 | 0.0 mi | — |
| Black Rock I | former geothermal site | 70 | 0.0 mi | — |
| Hudson Ranch Power II LLC | former geothermal site | 55 | 4.6 mi | — |
| El Centro Hybrid | natural gas plant | 50 | 25.1 mi | — |
| Ormesa I | former geothermal site | 31 | 31.5 mi | — |
| Ormesa II | former geothermal site | 24 | 33.3 mi | — |
| Brawley | oil plant | 23 | 14.0 mi | — |
| Ormesa IE | former geothermal site | 14 | 32.5 mi | — |
Derived from GridCensus's retired-generator & EPA brownfield dataset. Not a substitute for an ASTM E1527 Phase I environmental radius report.
Get alerts
Track Black Rock III
Get an email when its DC-readiness score, available capacity, or interconnection-queue status changes.
Nearby datacenter candidate sites
Scored candidate sites near Black Rock III, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| IMPERIAL VALLEY | Substation-Adjacent | CA | Imperial County | 500 kV | 1,000 MW | 8.2 yrs | 54.5 |
| Hudson Ranch Power II LLC | Brownfield | CA | Imperial County | 230 kV | 55 MW | 5.7 yrs | 52.1 |
| EL CENTRO | Substation-Adjacent | CA | Imperial County | 230 kV | 300 MW | 8.2 yrs | 51.3 |
| Ormesa I | Brownfield | CA | Imperial County | 66 kV | 31 MW | 5.7 yrs | 50.1 |
| HIGHLINE | Substation-Adjacent | CA | Imperial County | 230 kV | 300 MW | 8.2 yrs | 50.1 |
| MIDWAY | Substation-Adjacent | CA | Imperial County | 230 kV | 300 MW | 8.2 yrs | 50.0 |
| BANNISTER | Substation-Adjacent | CA | Imperial County | 230 kV | 300 MW | 8.2 yrs | 49.8 |
| Black Rock II | Brownfield | CA | Imperial County | 66 kV | 70 MW | 5.7 yrs | 49.6 |
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 Black Rock III, Calipatria, Imperial, 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.