Greenfield (UNKNOWN131232 - UNKNOWN131266)
GreenfieldTodd County, South Dakota · SPP
At a glance
Greenfield (UNKNOWN131232 - UNKNOWN131266) is a greenfield datacenter candidate site in Todd County, South Dakota, scoring 45.0/100 DC Readiness — 33rd of 33 scored sites in the county. Its nearest substation is UNKNOWN131232. It sits in the SPP grid region, 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
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: No state corporate income tax; no personal income tax; no personal property tax.
Site location
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How does Greenfield (UNKNOWN131232 - UNKNOWN131266) compare with other sites in Todd County?
Greenfield (UNKNOWN131232 - UNKNOWN131266) ranks 33rd of 33 scored candidate sites in Todd County. Its 45.0/100 is roughly in line with the county average of 47.1. It is about 18% below the South Dakota average of 54.7 and about 15% below the national average of 53.2.
Against the South Dakota average, its strongest sub-score is speed to power (55 vs 52) and its weakest is fiber connectivity (16 vs 68). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (UNKNOWN131232 - UNKNOWN131266) to power, fiber and other datacenters?
The nearest mapped substation, UNKNOWN131232, is the closest grid connection point on record and operates at 115 kV. For connectivity, the nearest internet exchange facility is Golden West Rapid City Skyline Facility at 128 miles. 4 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Golden West Rapid City Skyline Facility, 128 miles away.
What are the flood, water and hazard risks at Greenfield (UNKNOWN131232 - UNKNOWN131266)?
At the county level, FEMA's National Risk Index rates Todd 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 Todd County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| OZ Todd | Greenfield | — | — | 4.3 yrs | 53.2 |
| UNKNOWN132460 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 51.4 |
| UNKNOWN131826 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 51.4 |
| UNKNOWN131827 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 51.4 |
| UNKNOWN131233 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 51.3 |
| UNKNOWN131266 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 51.3 |
| Grace Broken Legs | Industrial | — | — | 4.3 yrs | 46.9 |
| Blue Thunder Dump Property | Industrial | — | — | 4.3 yrs | 46.7 |
Greenfield (UNKNOWN131232 - UNKNOWN131266): common questions
What is the DC Readiness score of Greenfield (UNKNOWN131232 - UNKNOWN131266)?
Greenfield (UNKNOWN131232 - UNKNOWN131266) scores 45.0/100 on the GridCensus DC Readiness scale, rated fair. It ranks 33rd of 33 scored sites in Todd County. The Todd County average is 47.1 and the South Dakota average is 54.7.
What is the nearest substation to Greenfield (UNKNOWN131232 - UNKNOWN131266)?
The nearest mapped substation is UNKNOWN131232, at 115 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
What grid region is Greenfield (UNKNOWN131232 - UNKNOWN131266) in?
Greenfield (UNKNOWN131232 - UNKNOWN131266) is in the SPP region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is Greenfield (UNKNOWN131232 - UNKNOWN131266) from an internet exchange?
The nearest internet exchange facility is Golden West Rapid City Skyline Facility, about 128 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, “Greenfield (UNKNOWN131232 - UNKNOWN131266), Todd County, SD”, https://gridcensus.com/datacenter-sites/south-dakota/todd-county/greenfield-unknown131232-unknown131266-27b006f4 (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 (UNKNOWN131232 - UNKNOWN131266), Todd 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.