Greenfield (SPANISH FORK - STILL MILL)
GreenfieldUtah County, Utah · WECC
At a glance
Greenfield (SPANISH FORK - STILL MILL) is a greenfield datacenter candidate site in Utah County, Utah, scoring 58.7/100 DC Readiness — 35th of 195 scored sites in the county. Its nearest substation is SPANISH FORK. It sits in the WECC grid region and the PROVO CITY CORP service territory, where interconnection has averaged 3.5 years from request to operation. GridCensus catalogs 600 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
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: Enterprise Zone tax credits; Economic Development Tax Increment Financing (EDTIF).
Site location
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How does Greenfield (SPANISH FORK - STILL MILL) compare with other sites in Utah County?
Greenfield (SPANISH FORK - STILL MILL) ranks 35th of 195 scored candidate sites in Utah County. Its 58.7/100 is roughly in line with the county average of 54.6. It is about 14% above the Utah average of 51.7 and about 10% above the national average of 53.2.
Against the Utah average, its strongest sub-score is power availability (59 vs 39) and its weakest is water (24 vs 25). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (SPANISH FORK - STILL MILL) to power, fiber and other datacenters?
The nearest mapped substation, SPANISH FORK, is the closest grid connection point on record and operates at 345 kV. For connectivity, the nearest internet exchange facility is Voonami SLC1 at 5.2 miles. 19 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Voonami SLC1, 5.2 miles away.
What are the flood, water and hazard risks at Greenfield (SPANISH FORK - STILL MILL)?
At the county level, FEMA's National Risk Index rates Utah County "Relatively Low".
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 Utah County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| LAKESIDE 2 | Substation-Adjacent | 345 kV | 600 MW | 3.5 yrs | 66.1 |
| Spanish Fork Landfill | Brownfield | 115 kV | 5 MW | 3.5 yrs | 63.7 |
| SPANISH FORK | Substation-Adjacent | 345 kV | 600 MW | 3.5 yrs | 63.0 |
| EC Near Payson | Greenfield | — | — | 3.5 yrs | 61.7 |
| MONA | Substation-Adjacent | 345 kV | 600 MW | 3.5 yrs | 61.5 |
| EC Near Payson | Greenfield | — | — | 3.5 yrs | 61.2 |
| EC Near Payson | Greenfield | — | — | 3.5 yrs | 61.0 |
| CLOVER | Substation-Adjacent | 345 kV | 600 MW | 3.5 yrs | 60.7 |
Greenfield (SPANISH FORK - STILL MILL): common questions
What is the DC Readiness score of Greenfield (SPANISH FORK - STILL MILL)?
Greenfield (SPANISH FORK - STILL MILL) scores 58.7/100 on the GridCensus DC Readiness scale, rated good. It ranks 35th of 195 scored sites in Utah County. The Utah County average is 54.6 and the Utah average is 51.7.
What is the nearest substation to Greenfield (SPANISH FORK - STILL MILL)?
The nearest mapped substation is SPANISH FORK, at 345 kV. GridCensus catalogs 600 MW of candidate capacity for the site.
Which electric utility serves Greenfield (SPANISH FORK - STILL MILL)?
PROVO CITY CORP (municipal) holds the retail service territory that contains the site.
What grid region is Greenfield (SPANISH FORK - STILL MILL) in?
Greenfield (SPANISH FORK - STILL MILL) is in the WECC region. Projects interconnecting there have averaged a 3.5-year wait from queue request to operation.
How far is Greenfield (SPANISH FORK - STILL MILL) from an internet exchange?
The nearest internet exchange facility is Voonami SLC1, about 5.2 miles away; 19 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 (SPANISH FORK - STILL MILL), Utah County, UT”, https://gridcensus.com/datacenter-sites/utah/utah-county/greenfield-spanish-fork-still-mill-df933b97 (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 Greenfield (SPANISH FORK - STILL MILL), Utah 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.