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Substation-Adjacent site at 43.203, -89.471

Substation-Adjacent

Dane County, Wisconsin · MISO

DC Readiness
60.0
Good / 100

At a glance

Substation-Adjacent site at 43.203, -89.471 is a substation-adjacent datacenter candidate site in Dane County, Wisconsin, scoring 60.0/100 DC Readiness — 60th of 184 scored sites in the county. Its nearest substation is TAP163081 (0 mi, 69 kV). It sits in the MISO grid region and the WISCONSIN POWER & LIGHT CO service territory, where interconnection has averaged 4.3 years from request to operation. GridCensus catalogs 50 MW of candidate capacity here.

Power & interconnection

Nearest substationTAP163081
Substation distance0.0 mi
Substation voltage69 kV
Available capacity50 MW
UtilityWISCONSIN POWER & LIGHT COinvestor ownedfavorable to large load · terms ≥ 100 MW

Speed to power

Interconnection outlookModerate
≈ 4.9 yrs typical interconnection wait

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

ISO / RTO regionMISO
Queue depth133
Avg queue wait4.3 yrs
Recent queue wait4.9 yrs
Completion rate18%
Withdrawal rate82%

Connectivity

Nearest IXPSupraNet Communications Madison
IXP distance9.2 mi
Fiber providers16
Fiber coverage72.0%

Site characteristics

Land contactDane County County Assessor

Risk & environment

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

Location context

Nearest datacenterSupraNet Communications Madison
DC distance9.2 mi
County hazard (FEMA NRI)Relatively Low (22)
DC tax incentiveYes (sales_tax_exemption)
Commercial electricity12.96¢/kWh
Industrial electricity8.87¢/kWh
Cooling degree days600
Heating degree days7,200
Land price / acre$9,427

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: Enterprise Zone tax credits; TIF available for DC construction in eligible areas.

Site location

◆ Loading map…
≥ 7560–7540–60≤ 40
This site + 8 nearby

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How does Substation-Adjacent site at 43.203, -89.471 compare with other sites in Dane County?

Substation-Adjacent site at 43.203, -89.471 ranks 60th of 184 scored candidate sites in Dane County. Its 60.0/100 is roughly in line with the county average of 58.8. It is roughly in line with the Wisconsin average of 55.4 and about 13% above the national average of 53.2.

Against the Wisconsin average, its strongest sub-score is fiber connectivity (87 vs 67) and its weakest is speed to power (48 vs 48). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.

How close is Substation-Adjacent site at 43.203, -89.471 to power, fiber and other datacenters?

The nearest mapped substation, TAP163081, is about 0 miles away and operates at 69 kV. The nearest located transmission bottleneck is ALEWEC02_ROCKDAL1_66320_66 (MISO), 26 miles away. For connectivity, the nearest internet exchange facility is SupraNet Communications Madison at 9.2 miles. 16 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is SupraNet Communications Madison, 9.2 miles away.

What are the flood, water and hazard risks at Substation-Adjacent site at 43.203, -89.471?

At the county level, FEMA's National Risk Index rates Dane County "Relatively Low".

Full DC Readiness breakdown

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

Power availability20%
46
Speed to power20%
48
Fiber connectivity12%
87
Energy cost10%
50
Water risk7%
94
Natural hazard6%
78
Buildability7%
60
Labor market4%
50
DC cluster4%
80
Land / acreage3%
45
Construction cost3%
50
Gas pipeline2%
10
Tax incentive1%
100
Climate / cooling1%
95

Nearby comparable sites

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

Sites near Substation-Adjacent site at 43.203, -89.471
SiteTypeVoltageCapacityQueue waitScore
CARDINALSubstation-Adjacent345 kV600 MW4.3 yrs69.6
NORTH MADISON 345/138KVSubstation-Adjacent345 kV600 MW4.3 yrs67.7
OZ DaneGreenfield——4.3 yrs64.9
EC Near Blount StreetGreenfield——4.3 yrs64.5
OZ DaneGreenfield——4.3 yrs64.4
OZ DaneGreenfield——4.3 yrs64.2
OZ DaneGreenfield——4.3 yrs64.2
BLOUNTSubstation-Adjacent138 kV100 MW4.3 yrs64.2

Substation-Adjacent site at 43.203, -89.471: common questions

What is the DC Readiness score of Substation-Adjacent site at 43.203, -89.471?

Substation-Adjacent site at 43.203, -89.471 scores 60.0/100 on the GridCensus DC Readiness scale, rated good. It ranks 60th of 184 scored sites in Dane County. The Dane County average is 58.8 and the Wisconsin average is 55.4.

What is the nearest substation to Substation-Adjacent site at 43.203, -89.471?

The nearest mapped substation is TAP163081, about 0 miles away, at 69 kV. GridCensus catalogs 50 MW of candidate capacity for the site.

Which electric utility serves Substation-Adjacent site at 43.203, -89.471?

WISCONSIN POWER & LIGHT CO (investor owned) holds the retail service territory that contains the site; its holding company is ALLIANT ENERGY CORP.

What grid region is Substation-Adjacent site at 43.203, -89.471 in?

Substation-Adjacent site at 43.203, -89.471 is in the MISO region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.

How far is Substation-Adjacent site at 43.203, -89.471 from an internet exchange?

The nearest internet exchange facility is SupraNet Communications Madison, about 9.2 miles away; 16 fiber providers report service at the location.

Related pages

About this data

Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: GridCensus, “Substation-Adjacent site at 43.203, -89.471, Dane County, WI”, https://gridcensus.com/datacenter-sites/wisconsin/dane-county/tap163081-4bf9758a (data as of October 10, 2026).

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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Every site and score for Substation-Adjacent site at 43.203, -89.471, Dane County is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.