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Gridcensus

Sutherland

Brownfield

Marshalltown, Marshall, Iowa · Interstate Power and Light Co

Legacy capacity
157
MW

Sutherland is a natural gas plant in Marshalltown, Marshall, Iowa, retired 2017-06-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 157 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.

Former use & capacity

Former usenatural gas plant
Site typeretired_plant
Existing capacity157 MW
Retirement date2017-06-01
EIA plant ID#1077

Grid hookup & remediation

Nearest substation0.2 mi
Operator address3001 E. Main St Rd, Marshalltown, IA, 50158
Why this site is datacenter-attractive: a natural gas plant of this scale leaves behind a high-capacity grid interconnection that a new load can re-use, frequently shaving years off the interconnection queue. Retired-plant sites also tend to be already zoned for heavy industrial use with established road, rail, and water infrastructure.

Site conditions & market — Marshall County

County-level intelligence for this site's location — the power economics, water, hazard, connectivity, and workforce a developer screens before ever visiting. Assembled from FEMA NRI, BLS QCEW, FCC BDC, USGS water-use, and EIA.

Market & workforce

Total employment (laborshed)12,805
Construction employment406
Land value$9,375/acre
Datacenter tax incentivesales_tax_exemption

Power economics & interconnection

Commercial power rate12.49¢/kWh
Industrial power rate7.34¢/kWh
Load growth (FERC-714)1.2%

Water & cooling

Water stressLow
Public water supply5.0 MGD
Industrial water use1.4 MGD
Cooling degree days900
Mean annual temp48°F

Hazard, flood & connectivity

FEMA risk index30.0 · Relatively Moderate
Fiber providers12 · 91% served

County-level context — address-level utility offerings and flood zoning vary within the county. Confirm site-specific service with the utility and a Phase I ESA.

Nearby brownfield & retired-generation sites

A proximity screen of other retired-plant, contaminated, and EPA-flagged sites near Sutherland — the environmental neighborhood, ranked by legacy grid capacity.

SiteFormer useLegacy MWDistanceCleanup status
Grinnellnatural gas plant4821.1 mi—
Marshall County Landfill Solarformer landfill site02.6 micleanup_complete

Derived from GridCensus's retired-generator & EPA brownfield dataset. Not a substitute for an ASTM E1527 Phase I environmental radius report.

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Nearby datacenter candidate sites

Scored candidate sites near Sutherland, ranked by DC Readiness.

Candidate sites near Sutherland
SiteTypeStateCountyVoltageCapacityQueue waitScore
Marshall County Landfill SolarBrownfieldIAMarshall—0 MW2.8 yrs64.8
SutherlandBrownfieldIAMarshall County—157 MW1.4 yrs63.4
EC Near SutherlandGreenfieldIAMarshall——1.4 yrs62.3
EC Near GrinnellGreenfieldIAPoweshiek——1.4 yrs61.3
EC Near BrooklynGreenfieldIAPoweshiek——1.4 yrs61.3
EC Coal Marshall CountyGreenfieldIAMarshall County——1.4 yrs60.8
EC Near SutherlandGreenfieldIAMarshall——1.4 yrs60.7
EC Near SutherlandGreenfieldIAMarshall——1.4 yrs60.5

Nearby internet exchanges

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Dataset updated . Screening estimates derived from public data sources.

Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.

Go deeper than the public screen

This page shows a public slice of the GridCensus dataset for Sutherland, Marshalltown, Marshall, Iowa. 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.