Sierra Pacific Sonora
BrownfieldStandard, Tuolumne, California · Sierra Pacific Industries
Sierra Pacific Sonora is a former biomass site in Standard, Tuolumne, California, retired 2018-03-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 8 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
Nearby datacenter candidate sites
Scored candidate sites near Sierra Pacific Sonora, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| MELONES TAP 1 | Substation-Adjacent | CA | Calaveras County | 230 kV | 300 MW | 8.2 yrs | 45.6 |
| ELECTRA TAP 2 | Substation-Adjacent | CA | Amador County | 230 kV | 300 MW | 8.2 yrs | 45.4 |
| COLLIERVILLE | Substation-Adjacent | CA | Calaveras County | 230 kV | 300 MW | 8.2 yrs | 44.7 |
| MELONES | Substation-Adjacent | CA | Calaveras County | 230 kV | 300 MW | 8.2 yrs | 44.7 |
| OZ Calaveras | Greenfield | CA | Calaveras | — | — | 5.7 yrs | 44.4 |
| TULLOCH | Substation-Adjacent | CA | Calaveras County | 115 kV | 100 MW | 8.2 yrs | 42.0 |
| Mine Site | Former Mine | CA | Stanislaus County | — | — | 8.2 yrs | 41.6 |
| Mine Site | Former Mine | CA | Stanislaus County | — | — | 8.2 yrs | 41.6 |
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 Sierra Pacific Sonora, Standard, Tuolumne, 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.