Substation-Adjacent site at 44.063, -103.282
Substation-AdjacentPennington County, South Dakota · SPP
At a glance
Substation-Adjacent site at 44.063, -103.282 is a substation-adjacent datacenter candidate site in Pennington County, South Dakota, scoring 60.5/100 DC Readiness — 29th of 58 scored sites in the county. Its nearest substation is UNKNOWN132509 (0 mi, 69 kV). It sits in the SPP grid region and the BLACK HILLS POWER, INC. service territory, where interconnection has averaged 4.3 years from request to operation. GridCensus catalogs 50 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 Substation-Adjacent site at 44.063, -103.282 compare with other sites in Pennington County?
Substation-Adjacent site at 44.063, -103.282 ranks 29th of 58 scored candidate sites in Pennington County. Its 60.5/100 is roughly in line with the county average of 59.7. It is about 11% above the South Dakota average of 54.7 and about 14% above the national average of 53.2.
Against the South Dakota average, its strongest sub-score is fiber connectivity (83 vs 68) and its weakest is water (76 vs 76). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Substation-Adjacent site at 44.063, -103.282 to power, fiber and other datacenters?
The nearest mapped substation, UNKNOWN132509, is about 0 miles away and operates at 69 kV. For connectivity, the nearest internet exchange facility is Golden West Rapid City Skyline Facility at 2.2 miles. 7 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Golden West Rapid City Skyline Facility, 2.2 miles away.
What are the flood, water and hazard risks at Substation-Adjacent site at 44.063, -103.282?
At the county level, FEMA's National Risk Index rates Pennington 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 Pennington County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| EC Coal Pennington County | Greenfield | — | — | 4.3 yrs | 66.9 |
| SOUTH RAPID CITY | Substation-Adjacent | 230 kV | 300 MW | 4.3 yrs | 66.8 |
| RAPID CITY DC TIE | Substation-Adjacent | 230 kV | 300 MW | 4.3 yrs | 65.9 |
| LANGE | Substation-Adjacent | 230 kV | 300 MW | 4.3 yrs | 65.8 |
| EC Near Ben French | Greenfield | — | — | 4.3 yrs | 65.7 |
| EC Near Ben French | Greenfield | — | — | 4.3 yrs | 65.2 |
| EC Coal Pennington County | Greenfield | — | — | 4.3 yrs | 64.6 |
| EC Near Ben French | Greenfield | — | — | 4.3 yrs | 64.4 |
Substation-Adjacent site at 44.063, -103.282: common questions
What is the DC Readiness score of Substation-Adjacent site at 44.063, -103.282?
Substation-Adjacent site at 44.063, -103.282 scores 60.5/100 on the GridCensus DC Readiness scale, rated good. It ranks 29th of 58 scored sites in Pennington County. The Pennington County average is 59.7 and the South Dakota average is 54.7.
What is the nearest substation to Substation-Adjacent site at 44.063, -103.282?
The nearest mapped substation is UNKNOWN132509, about 0 miles away, at 69 kV. GridCensus catalogs 50 MW of candidate capacity for the site.
Which electric utility serves Substation-Adjacent site at 44.063, -103.282?
BLACK HILLS POWER, INC. (investor owned) holds the retail service territory that contains the site; its holding company is BLACK HILLS POWER INC.
What grid region is Substation-Adjacent site at 44.063, -103.282 in?
Substation-Adjacent site at 44.063, -103.282 is in the SPP region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is Substation-Adjacent site at 44.063, -103.282 from an internet exchange?
The nearest internet exchange facility is Golden West Rapid City Skyline Facility, about 2.2 miles away; 7 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, “Substation-Adjacent site at 44.063, -103.282, Pennington County, SD”, https://gridcensus.com/datacenter-sites/south-dakota/pennington-county/unknown132509-de8cb8e2 (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 Substation-Adjacent site at 44.063, -103.282, Pennington 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.