Greenfield (UNKNOWN130487 - UNKNOWN130489)
GreenfieldWoodbury County, Iowa · MISO
At a glance
Greenfield (UNKNOWN130487 - UNKNOWN130489) is a greenfield datacenter candidate site in Woodbury County, Iowa, scoring 51.8/100 DC Readiness — 93rd of 94 scored sites in the county. Its nearest substation is UNKNOWN130487. It sits in the MISO grid region and the MIDAMERICAN ENERGY CO service territory, where interconnection has averaged 4.3 years from request to operation. GridCensus catalogs 100 MW of candidate capacity here.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
Strong incentives; utilities courting hyperscale load.
Incentive detail: Sales tax exemption on DC equipment for $1M+ investments; property tax phase-in for new construction.
Site location
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How does Greenfield (UNKNOWN130487 - UNKNOWN130489) compare with other sites in Woodbury County?
Greenfield (UNKNOWN130487 - UNKNOWN130489) ranks 93rd of 94 scored candidate sites in Woodbury County. Its 51.8/100 is about 11% below the county average of 58.0. It is roughly in line with the Iowa average of 56.4 and roughly in line with the national average of 53.2.
Against the Iowa average, its strongest sub-score is natural hazard (70 vs 69) and its weakest is fiber connectivity (62 vs 77). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (UNKNOWN130487 - UNKNOWN130489) to power, fiber and other datacenters?
The nearest mapped substation, UNKNOWN130487, is the closest grid connection point on record and operates at 161 kV. The nearest located transmission bottleneck is Raun_Tekamho_161kV_ftlo_Raun_Ft_Cal_345kV (MISO), 27 miles away. For connectivity, the nearest internet exchange facility is Long Lines Secure Data Center at 29.6 miles. 15 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Long Lines Secure Data Center, 29.6 miles away.
What are the flood, water and hazard risks at Greenfield (UNKNOWN130487 - UNKNOWN130489)?
At the county level, FEMA's National Risk Index rates Woodbury County "Relatively Moderate".
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 Woodbury County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| OZ Woodbury | Greenfield | — | — | 4.3 yrs | 65.9 |
| EC Coal Woodbury County | Greenfield | — | — | 4.3 yrs | 65.5 |
| EC Near George Neal North | Greenfield | — | — | 4.3 yrs | 64.8 |
| EC Near George Neal North | Greenfield | — | — | 4.3 yrs | 64.2 |
| EC Near George Neal North | Greenfield | — | — | 4.3 yrs | 63.4 |
| EC Near George Neal North | Greenfield | — | — | 4.3 yrs | 63.4 |
| EC Near George Neal North | Greenfield | — | — | 4.3 yrs | 63.0 |
| EC Near George Neal North | Greenfield | — | — | 4.3 yrs | 62.9 |
Greenfield (UNKNOWN130487 - UNKNOWN130489): common questions
What is the DC Readiness score of Greenfield (UNKNOWN130487 - UNKNOWN130489)?
Greenfield (UNKNOWN130487 - UNKNOWN130489) scores 51.8/100 on the GridCensus DC Readiness scale, rated fair. It ranks 93rd of 94 scored sites in Woodbury County. The Woodbury County average is 58.0 and the Iowa average is 56.4.
What is the nearest substation to Greenfield (UNKNOWN130487 - UNKNOWN130489)?
The nearest mapped substation is UNKNOWN130487, at 161 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
Which electric utility serves Greenfield (UNKNOWN130487 - UNKNOWN130489)?
MIDAMERICAN ENERGY CO (investor owned) holds the retail service territory that contains the site; its holding company is BERKSHIRE HATHAWAY ENERGY.
What grid region is Greenfield (UNKNOWN130487 - UNKNOWN130489) in?
Greenfield (UNKNOWN130487 - UNKNOWN130489) is in the MISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is Greenfield (UNKNOWN130487 - UNKNOWN130489) from an internet exchange?
The nearest internet exchange facility is Long Lines Secure Data Center, about 29.6 miles away; 15 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 (UNKNOWN130487 - UNKNOWN130489), Woodbury County, IA”, https://gridcensus.com/datacenter-sites/iowa/woodbury-county/greenfield-unknown130487-unknown130489-75b3a477 (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 (UNKNOWN130487 - UNKNOWN130489), Woodbury 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.