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Gridcensus

401 4th Street SW Apt. 14

Industrial

Charles Mix County, South Dakota · SPP

DC Readiness
54.9
Fair / 100

401 4th Street SW Apt. 14 is an industrial datacenter candidate site in Charles Mix County, South Dakota, interconnecting through SPP. It screens at 54.9/100 DC Readiness and a 3.3 yrs average interconnection-queue wait.

Power & interconnection

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 depth3
Avg queue wait3.3 yrs

Connectivity

Nearest IXPMidco Yankton
IXP distance46.3 mi
Fiber providers5
Fiber coverage75.3%

Site characteristics

Site typeIndustrial

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 distance46.3 mi
County hazard (FEMA NRI)Relatively Low (22)
DC tax incentiveYes (no_income_tax)
Commercial electricity9.75¢/kWh
Industrial electricity9.98¢/kWh
Cooling degree days700
Heating degree days7,300
Land price / acre$3,849

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%
30
Speed to power20%
59
Fiber connectivity12%
71
Energy cost10%
50
Water risk7%
76
Natural hazard6%
78
Buildability7%
50
Labor market4%
50
DC cluster4%
40
Land / acreage3%
52
Construction cost3%
50
Gas pipeline2%
10
Tax incentive1%
100
Climate / cooling1%
90

Nearby comparable sites

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

Sites near 401 4th Street SW Apt. 14
SiteTypeVoltageCapacityQueue waitScore
FORT RANDALLSubstation-Adjacent230 kV300 MW3.3 yrs64.7
UNKNOWN131242Substation-Adjacent115 kV100 MW3.3 yrs60.3
UNKNOWN159245Substation-Adjacent69 kV50 MW3.3 yrs58.7
UNKNOWN159725Substation-Adjacent69 kV50 MW3.3 yrs58.0
UNKNOWN131240Substation-Adjacent69 kV50 MW3.3 yrs57.9
TAP159731Substation-Adjacent69 kV50 MW3.3 yrs57.9
TAP159728Substation-Adjacent69 kV50 MW3.3 yrs57.6
TAP159729Substation-Adjacent69 kV50 MW3.3 yrs57.4

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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