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Gridcensus

New Melones Substation

Federal Excess

Calaveras County, California · CAISO

DC Readiness
40.9
Fair / 100

New Melones Substation is a federal excess datacenter candidate site in Calaveras County, California, interconnecting through CAISO. It screens at 40.9/100 DC Readiness and a 8.2 yrs average interconnection-queue wait.

Power & interconnection

UtilityPACIFIC GAS & ELECTRIC CO.investor ownedrestrictive to large load · terms ≥ 50 MW

Speed to power

Interconnection outlookConstrained
≈ 8.2 yrs typical interconnection wait

Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.

ISO / RTO regionCAISO
Queue depth227
Avg queue wait8.2 yrs

Connectivity

Nearest IXPVolt Modesto
IXP distance28.7 mi
Fiber providers4
Fiber coverage8.1%
Max download233 Mbps

Site characteristics

Acreage7 ac
Buildable load (est.)~3–7 MWland-based
Former usePower Development and Distribution

Risk & environment

Environmental constraintNone (0/100)
Water stress (WRI)High
Wetlands (NWI)—
Critical habitat—
Superfund nearby—
Hazard sub-score52/100

Location context

Nearest datacenterVolt Modesto
DC distance28.7 mi
County hazard (FEMA NRI)Relatively High (48)
DC tax incentiveNo
Commercial electricity29.29¢/kWh
Industrial electricity22.37¢/kWh
Cooling degree days1,000
Heating degree days2,500
Land price / acre$4,909

Regulatory climate

Moderatestate posture · as of 2026-08

No notable statewide DC restriction on record; confirm local zoning and utility tariffs.

DC tax incentiveNo / suspended

Site location

◆ Loading map…
≥ 7560–7540–60≤ 40
This site + 8 nearby

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Full DC Readiness breakdown

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

Power availability20%
30
Speed to power20%
40
Fiber connectivity12%
51
Energy cost10%
50
Water risk7%
24
Natural hazard6%
52
Buildability7%
50
Labor market4%
50
DC cluster4%
60
Land / acreage3%
21
Construction cost3%
50
Gas pipeline2%
10
Tax incentive1%
0
Climate / cooling1%
75

Nearby comparable sites

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

Sites near New Melones Substation
SiteTypeVoltageCapacityQueue waitScore
MELONES TAP 1Substation-Adjacent230 kV300 MW8.2 yrs51.4
VALLEY SPRINGSSubstation-Adjacent230 kV300 MW8.2 yrs50.8
COLLIERVILLESubstation-Adjacent230 kV300 MW8.2 yrs50.7
MELONESSubstation-Adjacent230 kV300 MW8.2 yrs50.6
TULLOCHSubstation-Adjacent115 kV100 MW8.2 yrs47.4
TAP310779Substation-Adjacent115 kV100 MW8.2 yrs46.5
MURPHYSubstation-Adjacent115 kV100 MW8.2 yrs46.5
CHINESE STASubstation-Adjacent115 kV100 MW8.2 yrs46.5

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 New Melones Substation, Calaveras County. 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.