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Gridcensus

Aurora County, South Dakota · SPP

DC Readiness
56.8
Good / 100

TAP159720 is a substation-adjacent datacenter candidate site in Aurora County, South Dakota, interconnecting through SPP. It screens at 56.8/100 DC Readiness with a catalogued 50 MW of candidate capacity and a 3.3 yrs average interconnection-queue wait.

Power & interconnection

Nearest substationTAP159720
Substation distance0.0 mi
Substation voltage69 kV
Available capacity50 MW
UtilityNORTHWESTERN ENERGY - (SD)investor ownedfavorable to large load · terms ≥ 50 MW

Speed to power

Interconnection outlookModerate
≈ 3.3 yrs typical interconnection wait

Middle-of-the-pack interconnection conditions for this grid.

ISO / RTO regionSPP
Queue depth4
Avg queue wait3.3 yrs

Connectivity

Nearest IXPMidco Yankton
IXP distance75.5 mi
Fiber providers5
Fiber coverage99.1%

Site characteristics

Risk & environment

Environmental constraintNone (0/100)
Water stress (WRI)Low-Medium
Wetlands (NWI)—
Critical habitat—
Superfund nearby—
Hazard sub-score78/100

Location context

Nearest datacenterMidco Yankton
DC distance75.5 mi
County hazard (FEMA NRI)Relatively Low (22)
DC tax incentiveYes (no_income_tax)
Commercial electricity12.70¢/kWh
Industrial electricity8.62¢/kWh
Cooling degree days700
Heating degree days7,300
Land price / acre$3,731

Regulatory climate

Moderatestate posture · as of 2026-08

No notable statewide DC restriction on record; confirm local zoning and utility tariffs.

DC tax incentiveNo / suspended

Incentive detail: No state corporate income tax; no personal income tax; no personal property tax.

Site location

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≥ 7560–7540–60≤ 40
This site + 8 nearby

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Full DC Readiness breakdown

All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.

Power availability20%
46
Speed to power20%
58
Fiber connectivity12%
74
Energy cost10%
50
Water risk7%
76
Natural hazard6%
78
Buildability7%
60
Labor market4%
50
DC cluster4%
20
Land / acreage3%
52
Construction cost3%
50
Gas pipeline2%
10
Tax incentive1%
100
Climate / cooling1%
90

Nearby comparable sites

Other scored datacenter candidate sites in Aurora County, ranked by DC Readiness.

Sites near TAP159720
SiteTypeVoltageCapacityQueue waitScore
TAP159721Substation-Adjacent69 kV50 MW3.3 yrs56.9
TAP159207Substation-Adjacent69 kV50 MW3.3 yrs56.8
TAP159205Substation-Adjacent69 kV50 MW3.3 yrs56.7
TAP159204Substation-Adjacent69 kV50 MW3.3 yrs56.7
UNKNOWN159727Substation-Adjacent69 kV50 MW3.3 yrs56.2
TAP159726Substation-Adjacent69 kV50 MW3.3 yrs56.2
UNKNOWN159269Substation-Adjacent69 kV50 MW3.3 yrs56.0
304B Maple StreetIndustrial——3.3 yrs53.0

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.

Go deeper than the public screen

This page shows a public slice of the GridCensus dataset for TAP159720, Aurora County. Pro and Enterprise plans unlock the full 147,272-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.