SIOUX FALLS

Substation

South Dakota · NORTHERN STATES POWER CO - MINNESOTA

Max voltage
230
kV

SIOUX FALLS is an electric transmission substation in South Dakota, operated by NORTHERN STATES POWER CO - MINNESOTA. It is classified as high-voltage (230 kv) and connects 10 transmission lines. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.

Voltage & classification

Max voltage230 kV
Min voltage115 kV
Voltage classHigh-voltage (230 kV)
Connected lines10

Ownership & operation

OperatorNORTHERN STATES POWER CO - MINNESOTA
StateSouth Dakota
Coordinates43.5509, -96.6636

Connected transmission lines

Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.

Line IDVoltageOwnerStatusLength
#45201230 kV—IN SERVICE20.2 mi
#22827230 kV—IN SERVICE21.2 mi
#26301230 kV—IN SERVICE70.1 mi
#30335230 kV—IN SERVICE27.6 mi
#32842230 kVNORTHERN STATES POWER CO - MINNESOTAIN SERVICE1.0 mi
#1572115 kVNORTHERN STATES POWER CO - MINNESOTAIN SERVICE0.2 mi
#12962115 kV—IN SERVICE31.7 mi
#21381115 kVNORTHERN STATES POWER CO - MINNESOTAIN SERVICE2.8 mi
#28946115 kV—IN SERVICE40.1 mi
#24926115 kVNORTHERN STATES POWER CO - MINNESOTAIN SERVICE1.1 mi

Browse the full transmission-line map →

Nearby datacenter candidate sites

Scored candidate sites within roughly 25 miles of SIOUX FALLS, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.

Candidate sites near SIOUX FALLS substation
SiteTypeStateCountyVoltageCapacityQueue waitScore
SIOUX FALLSSubstation-AdjacentSDMinnehaha County230 kV300 MW1.0 yrs76.3
UNKNOWN130479Substation-AdjacentIALyon County230 kV300 MW1.0 yrs75.0
VIRGIL FODNESSSubstation-AdjacentSDLincoln County230 kV300 MW1.0 yrs74.3
UNKNOWN158869Substation-AdjacentSDMinnehaha County115 kV100 MW1.0 yrs73.1
UNKNOWN130480Substation-AdjacentIALyon County230 kV300 MW1.0 yrs72.9
UNKNOWN131291Substation-AdjacentSDLincoln County115 kV100 MW1.0 yrs72.8
UNKNOWN130478Substation-AdjacentIALyon County115 kV100 MW1.0 yrs72.4
UNKNOWN131288Substation-AdjacentSDMinnehaha County115 kV100 MW1.0 yrs71.8

Dataset updated . Screening estimates derived from public data sources.

Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.

Go deeper than the public screen

This page shows a public slice of the GridCensus dataset for SIOUX FALLS substation, South Dakota. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.

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