Former Mine site at 39.334, -123.102
Former MineMendocino County, California · CAISO
At a glance
Former Mine site at 39.334, -123.102 is a former mine datacenter candidate site in Mendocino County, California, scoring 39.6/100 DC Readiness — 27th of 29 scored sites in the county. It sits in the CAISO grid region and the PACIFIC GAS & ELECTRIC CO. service territory, where interconnection has averaged 7.6 years from request to operation.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Site location
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How does Former Mine site at 39.334, -123.102 compare with other sites in Mendocino County?
Former Mine site at 39.334, -123.102 ranks 27th of 29 scored candidate sites in Mendocino County. Its 39.6/100 is roughly in line with the county average of 40.6. It is about 13% below the California average of 45.4 and about 26% below the national average of 53.2.
Against the California average, its strongest sub-score is natural hazard (52 vs 51) and its weakest is fiber connectivity (46 vs 66). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Former Mine site at 39.334, -123.102 to power, fiber and other datacenters?
The nearest located transmission bottleneck is 31334_CLER LKE_60.0_31338_KONOCTI6_60.0_BR_1 _1 (CAISO), 25 miles away. For connectivity, the nearest internet exchange facility is X2nSat Petaluma at 76.9 miles. 4 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is X2nSat Petaluma, 76.9 miles away.
What are the flood, water and hazard risks at Former Mine site at 39.334, -123.102?
At the county level, FEMA's National Risk Index rates Mendocino County "Relatively High".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Mendocino County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UKIAH | Substation-Adjacent | 115 kV | 100 MW | 7.6 yrs | 46.1 |
| CALPELLA | Substation-Adjacent | 115 kV | 100 MW | 7.6 yrs | 46.0 |
| OZ Mendocino | Greenfield | — | — | 7.6 yrs | 43.1 |
| Mine Site | Former Mine | — | — | 7.6 yrs | 40.9 |
| Mine Site | Former Mine | — | — | 7.6 yrs | 40.9 |
| 2001 Tribal Well | Industrial | — | — | 7.6 yrs | 40.8 |
| Hopland Rancheria Well 2001 | Industrial | — | — | 7.6 yrs | 40.8 |
| Old Stage Road Burn Dump | Industrial | — | — | 7.6 yrs | 40.8 |
Former Mine site at 39.334, -123.102: common questions
What is the DC Readiness score of Former Mine site at 39.334, -123.102?
Former Mine site at 39.334, -123.102 scores 39.6/100 on the GridCensus DC Readiness scale, rated limited. It ranks 27th of 29 scored sites in Mendocino County. The Mendocino County average is 40.6 and the California average is 45.4.
Which electric utility serves Former Mine site at 39.334, -123.102?
PACIFIC GAS & ELECTRIC CO. (investor owned) holds the retail service territory that contains the site; its holding company is PACIFIC GAS & ELECTRIC CORPORATION.
What grid region is Former Mine site at 39.334, -123.102 in?
Former Mine site at 39.334, -123.102 is in the CAISO region. Projects interconnecting there have averaged a 7.6-year wait from queue request to operation.
How far is Former Mine site at 39.334, -123.102 from an internet exchange?
The nearest internet exchange facility is X2nSat Petaluma, about 76.9 miles away; 4 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Former Mine site at 39.334, -123.102, Mendocino County, CA”, https://gridcensus.com/datacenter-sites/california/mendocino-county/mine-site-a1a55a2f (data as of October 10, 2026).
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.
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