Geysers Unit 5-20
BrownfieldMiddletown, Sonoma, California · Geysers Power Co LLC
Geysers Unit 5-20 is a former geothermal site in Middletown, Sonoma, California, retired 2006-05-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 110 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 — Sonoma 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 Geysers Unit 5-20 — the environmental neighborhood, ranked by legacy grid capacity.
| Site | Former use | Legacy MW | Distance | Cleanup status |
|---|---|---|---|---|
| Buckeye Geothermal Power Plant | former geothermal site | 57 | 6.1 mi | — |
| Wild Horse Power Plant | former geothermal site | 48 | 6.4 mi | — |
| West Ford Flat Power Plant | former geothermal site | 38 | 1.5 mi | — |
| Bear Canyon Power Plant | former geothermal site | 24 | 3.0 mi | — |
| Cloverdale Solar | former landfill site | 2 | 14.6 mi | cleanup_complete |
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 Geysers Unit 5-20, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| OAKMONT SOUTH | Substation-Adjacent | CA | Napa County | 230 kV | 300 MW | 8.2 yrs | 54.4 |
| OAKMONT NORTH | Substation-Adjacent | CA | Napa County | 230 kV | 300 MW | 8.2 yrs | 54.3 |
| FULTON | Substation-Adjacent | CA | Sonoma County | 230 kV | 300 MW | 8.2 yrs | 53.7 |
| SOCRATES 19 | Substation-Adjacent | CA | Sonoma County | 230 kV | 300 MW | 8.2 yrs | 52.9 |
| WEST FORD FLAT | Substation-Adjacent | CA | Sonoma County | 230 kV | 300 MW | 8.2 yrs | 52.5 |
| BEAR CANYON | Substation-Adjacent | CA | Sonoma County | 230 kV | 300 MW | 8.2 yrs | 52.3 |
| BIG GEYSERS | Substation-Adjacent | CA | Sonoma County | 230 kV | 300 MW | 8.2 yrs | 51.3 |
| QUICKSILVER | Substation-Adjacent | CA | Sonoma County | 230 kV | 300 MW | 8.2 yrs | 51.3 |
Nearby internet exchanges
- X2nSat PetalumaPetaluma, CA · 0 networks
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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 Geysers Unit 5-20, Middletown, Sonoma, 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.