Greenfield (TAP203364 - CEDARVILLE JUNCTIO)
GreenfieldModoc County, California · WECC
At a glance
Greenfield (TAP203364 - CEDARVILLE JUNCTIO) is a greenfield datacenter candidate site in Modoc County, California, scoring 40.4/100 DC Readiness — 37th of 44 scored sites in the county. Its nearest substation is TAP203364. It sits in the WECC grid region and the SURPRISE VALLEY ELECTRIFICATION service territory, where interconnection has averaged 7.6 years from request to operation. GridCensus catalogs 100 MW of candidate capacity here.
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 Greenfield (TAP203364 - CEDARVILLE JUNCTIO) compare with other sites in Modoc County?
Greenfield (TAP203364 - CEDARVILLE JUNCTIO) ranks 37th of 44 scored candidate sites in Modoc County. Its 40.4/100 is roughly in line with the county average of 44.2. It is about 11% below the California average of 45.4 and about 24% 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 (56 vs 66). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (TAP203364 - CEDARVILLE JUNCTIO) to power, fiber and other datacenters?
The nearest mapped substation, TAP203364, is the closest grid connection point on record and operates at 115 kV. For connectivity, the nearest internet exchange facility is Data Center West Medford at 136 miles. 3 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Data Center West Medford, 136 miles away.
What are the flood, water and hazard risks at Greenfield (TAP203364 - CEDARVILLE JUNCTIO)?
At the county level, FEMA's National Risk Index rates Modoc 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 Modoc County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| MALIN | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 56.6 |
| HILLTOP | Substation-Adjacent | 345 kV | 600 MW | 7.6 yrs | 52.7 |
| TAP310737 | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 51.1 |
| WARNER | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 51.1 |
| TAP302651 | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 50.9 |
| HILLTOP TAP | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 50.7 |
| TURKEY HILL | Substation-Adjacent | 69 kV | 50 MW | 3.5 yrs | 46.3 |
| TAP203364 | Substation-Adjacent | 115 kV | 100 MW | 7.6 yrs | 46.1 |
Greenfield (TAP203364 - CEDARVILLE JUNCTIO): common questions
What is the DC Readiness score of Greenfield (TAP203364 - CEDARVILLE JUNCTIO)?
Greenfield (TAP203364 - CEDARVILLE JUNCTIO) scores 40.4/100 on the GridCensus DC Readiness scale, rated fair. It ranks 37th of 44 scored sites in Modoc County. The Modoc County average is 44.2 and the California average is 45.4.
What is the nearest substation to Greenfield (TAP203364 - CEDARVILLE JUNCTIO)?
The nearest mapped substation is TAP203364, at 115 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
Which electric utility serves Greenfield (TAP203364 - CEDARVILLE JUNCTIO)?
SURPRISE VALLEY ELECTRIFICATION (cooperative) holds the retail service territory that contains the site; its holding company is SURPRISE VALLEY ELECTRIFICATION CORP.
What grid region is Greenfield (TAP203364 - CEDARVILLE JUNCTIO) in?
Greenfield (TAP203364 - CEDARVILLE JUNCTIO) is in the WECC region. Projects interconnecting there have averaged a 7.6-year wait from queue request to operation.
How far is Greenfield (TAP203364 - CEDARVILLE JUNCTIO) from an internet exchange?
The nearest internet exchange facility is Data Center West Medford, about 136 miles away; 3 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, “Greenfield (TAP203364 - CEDARVILLE JUNCTIO), Modoc County, CA”, https://gridcensus.com/datacenter-sites/california/modoc-county/greenfield-tap203364-cedarville-junctio-58ef5337 (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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