OZ Mendocino
GreenfieldMendocino County, California · CAISO
At a glance
OZ Mendocino is a greenfield datacenter candidate site in Mendocino County, California, scoring 36.7/100 DC Readiness — 29th 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 OZ Mendocino compare with other sites in Mendocino County?
OZ Mendocino ranks 29th of 29 scored candidate sites in Mendocino County. Its 36.7/100 is roughly in line with the county average of 40.6. It is about 19% below the California average of 45.4 and about 31% 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 (6 vs 66). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is OZ Mendocino to power, fiber and other datacenters?
The nearest located transmission bottleneck is 31336_HPLND JT_60.0_31370_CLVRDLJT_60.0_BR_1 _1 (CAISO), 20 miles away. For connectivity, the nearest internet exchange facility is X2nSat Petaluma at 66.5 miles. 4 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is X2nSat Petaluma, 66.5 miles away.
What are the flood, water and hazard risks at OZ Mendocino?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). WRI rates baseline water stress at 3.80 on a 0–5 scale. No mapped wetlands are recorded on the parcel. 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 |
OZ Mendocino: common questions
What is the DC Readiness score of OZ Mendocino?
OZ Mendocino scores 36.7/100 on the GridCensus DC Readiness scale, rated limited. It ranks 29th 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 OZ Mendocino?
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 OZ Mendocino in?
OZ Mendocino is in the CAISO region. Projects interconnecting there have averaged a 7.6-year wait from queue request to operation.
Is OZ Mendocino in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
Who owns OZ Mendocino?
Parcel records list the owner as PACIFIC GAS & ELECTRIC COMPANY (private land).
How far is OZ Mendocino from an internet exchange?
The nearest internet exchange facility is X2nSat Petaluma, about 66.5 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, “OZ Mendocino, Mendocino County, CA”, https://gridcensus.com/datacenter-sites/california/mendocino-county/oz-mendocino-d4b34e60 (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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Every site and score for OZ Mendocino, Mendocino County is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.