Sierra Pacific Sonora

Brownfield

Tuolumne County, California · CAISO

DC Readiness
51.9
Fair / 100

Sierra Pacific Sonora is a brownfield datacenter candidate site in Tuolumne County, California, interconnecting through CAISO. It screens at 51.9/100 DC Readiness with a catalogued 8 MW of candidate capacity.

Power & interconnection

Substation distance0.6 mi
Available capacity8 MW
Utility commercial rate0.28¢/kWh

Speed to power

ISO / RTO regionCAISO
Queue depth311

Connectivity

Nearest IXP801 Tenth Street Modesto (Ayera)
IXP distance43.5 mi
Fiber providers3
Nearest cloud providerOracle
Nearest cloud regionus-sanjose-1
Cloud region distance96.2 mi

Site characteristics

Site typeBrownfield
Land owner typeprivate
Buildability75.0/100
Former usebiomass
Existing capacity8 MW
Retirement date2018-03-01

Risk & environment

Flood zoneZone X
Water stress (WRI)3.80
Wetlands (NWI)Clear
Critical habitatClear
Superfund nearbyPresent
Superfund siteSIERRA PACIFIC INDUSTRIES SONORA DIVISION
Hazard sub-score42/100
Construction cost index96.1 (avg 100)

Location context

Nearest datacenter801 Tenth Street Modesto (Ayera)
DC distance43.5 mi
Nearest rail0.3 mi
Nearest gas pipeline27.6 mi
County hazard (FEMA NRI)Relatively High (48)
DC tax incentiveNo
Commercial electricity27.92¢/kWh
Industrial electricity21.43¢/kWh
Cooling degree days1,000
Heating degree days2,500
Land price / acre$4,337

Full DC Readiness breakdown

All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.

Power availability20%
48
Speed to power15%
39
Fiber connectivity12%
66
Energy cost10%
63
Water risk8%
52
Natural hazard8%
42
Buildability7%
75
Labor market4%
50
DC cluster4%
45
Land / acreage3%
65
Construction cost3%
70
Gas pipeline2%
11
Tax incentive2%
0
Climate / cooling2%
75

Nearby comparable sites

Other scored datacenter candidate sites in Tuolumne County, ranked by DC Readiness.

Sites near Sierra Pacific Sonora
SiteTypeVoltageCapacityQueue waitScore
NEW MOCCASIN CRSubstation-Adjacent230 kV300 MW5.8 yrs57.7
EARLY INTAKESubstation-Adjacent230 kV300 MW5.8 yrs54.9
CURTISSubstation-Adjacent115 kV100 MW5.7 yrs52.5
SPRING GAPSubstation-Adjacent115 kV100 MW5.7 yrs50.3
Greenfield (WARNERVILLE - NEW MOCCASIN CR)Greenfield230 kV300 MW5.7 yrs50.1
Greenfield (NEW MOCCASIN CR - EARLY INTAKE)Greenfield230 kV300 MW5.8 yrs49.6
BEARDSLEY TAPSubstation-Adjacent115 kV100 MW5.7 yrs49.6
DONNELLS-CURTISSubstation-Adjacent115 kV100 MW5.7 yrs49.0

Dataset updated . Screening estimates derived from public data sources.

Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.

Go deeper than the public screen

This page shows a public slice of the GridCensus dataset for Sierra Pacific Sonora, Tuolumne County. 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.