Greenfield (MONTEZUMA SWITCHING STATION - )

Greenfield

Mahaska County, Iowa · MISO

DC Readiness
66.6
Good / 100

Greenfield (MONTEZUMA SWITCHING STATION - ) is a greenfield datacenter candidate site in Mahaska County, Iowa, interconnecting through MISO. It screens at 66.6/100 DC Readiness with a catalogued 600 MW of candidate capacity and a 1.4 yrs average interconnection-queue wait.

Power & interconnection

Nearest substationMONTEZUMA SWITCHING STATION
Substation voltage345 kV
Available capacity600 MW
LMP zoneMISO_MINN
Wholesale LMP$34.82/MWh
Utility commercial rate0.10¢/kWh

Speed to power

ISO / RTO regionMISO
Queue depth21
Avg queue wait1.4 yrs
Recent queue wait1.4 yrs
Completion rate18%
Withdrawal rate82%

Connectivity

Nearest IXPLightEdge Des Moines 2 (DSM2)
IXP distance57.8 mi
Fiber providers8
Fiber coverage71.1%
Nearest cloud providerAzure
Nearest cloud regioncentralus
Cloud region distance56.0 mi

Site characteristics

Site typeGreenfield
Parcel ownerMIDAMERICAN ENERGY CO
Land owner typeprivate
Buildability65.0/100
Land cover (NLCD)Cultivated Crops

Risk & environment

Flood zoneZone X
Water stress (WRI)0.60
Wetlands (NWI)Clear
Critical habitatClear
Superfund nearbyClear
Hazard sub-score70/100
Construction cost index69.7 (avg 100)

Location context

Nearest datacenterMeta Altoona
DC distance57.1 mi
Nearest rail5.0 mi
Nearest gas pipeline3.9 mi
Nearest fiber route22.0 mi
County hazard (FEMA NRI)Relatively Moderate (30)
DC tax incentiveYes (sales_tax_exemption)
Commercial electricity10.21¢/kWh
Industrial electricity6.81¢/kWh
Cooling degree days900
Heating degree days6,500
Land price / acre$7,959
See all datacenter sites in Mahaska County →

Incentive detail: Sales tax exemption on DC equipment for $1M+ investments; property tax phase-in for new construction.

Full DC Readiness breakdown

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

Power availability20%
59
Speed to power15%
55
Fiber connectivity12%
67
Energy cost10%
85
Water risk8%
82
Natural hazard8%
70
Buildability7%
65
Labor market4%
50
DC cluster4%
50
Land / acreage3%
42
Construction cost3%
92
Gas pipeline2%
87
Tax incentive2%
100
Climate / cooling2%
80

Nearby comparable sites

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

Sites near Greenfield (MONTEZUMA SWITCHING STATION - )
SiteTypeVoltageCapacityQueue waitScore
UNKNOWN131612Substation-Adjacent161 kV100 MW1.4 yrs70.4
UNKNOWN137761Substation-Adjacent161 kV100 MW1.4 yrs68.9
UNKNOWN168102Substation-Adjacent161 kV100 MW1.4 yrs67.7
Greenfield (MONTEZUMA SWITCHING STATION - )Greenfield345 kV600 MW1.4 yrs67.4
Greenfield (MONTEZUMA SWITCHING STATION - )Greenfield345 kV600 MW1.4 yrs67.0
Greenfield (MONTEZUMA SWITCHING STATION - )Greenfield345 kV600 MW1.4 yrs66.7
PRAIRIE WIND FARMSubstation-Adjacent161 kV100 MW1.4 yrs65.9
Greenfield (UNKNOWN131612 - PRAIRIE WIND F)Greenfield161 kV100 MW1.4 yrs61.6

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 Greenfield (MONTEZUMA SWITCHING STATION - ), Mahaska County. 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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