TAP136941

Substation-Adjacent

Winnebago County, Illinois · PJM

DC Readiness
71.6
Excellent / 100

TAP136941 is a substation-adjacent datacenter candidate site in Winnebago County, Illinois, interconnecting through PJM. It screens at 71.6/100 DC Readiness with a catalogued 600 MW of candidate capacity and a 2.2 yrs average interconnection-queue wait.

Power & interconnection

Nearest substationTAP136941
Substation distance0.0 mi
Substation voltage345 kV
Available capacity600 MW
LMP zonePJM_ATSI
Wholesale LMP$42.97/MWh
Utility commercial rate0.09¢/kWh

Speed to power

ISO / RTO regionPJM
Queue depth11
Avg queue wait2.2 yrs
Recent queue wait2.2 yrs
Completion rate20%
Withdrawal rate80%

Connectivity

Nearest IXPRochelle Technology Center
IXP distance26.5 mi
Fiber providers15
Fiber coverage42.5%
Nearest cloud providerAzure
Nearest cloud regionnorthcentralus
Cloud region distance78.6 mi

Site characteristics

Site typeSubstation-Adjacent
Parcel ownerCOMMONWEALTH EDISON CO
Land owner typeprivate
Buildability92.0/100
Land cover (NLCD)Developed, Low Intensity

Risk & environment

Flood zoneZone X
Water stress (WRI)0.60
Wetlands (NWI)Clear
Critical habitatPresent
Superfund nearbyPresent
Superfund siteGLEASON CUTTING TOOLS CORP
Hazard sub-score35/100
Construction cost index103.2 (avg 100)

Location context

Nearest datacenterRochelle Technology Center
DC distance26.5 mi
Nearest rail0.4 mi
Nearest gas pipeline0.4 mi
Nearest fiber route8.4 mi
County hazard (FEMA NRI)Relatively High (35)
DC tax incentiveYes (sales_tax_exemption)
Commercial electricity9.30¢/kWh
Industrial electricity6.11¢/kWh
Cooling degree days1,100
Heating degree days5,600
Land price / acre$8,082
See all datacenter sites in Winnebago County →

Incentive detail: Enterprise Zone sales tax exemption; High Impact Business designation for $12M+ DC investments.

Full DC Readiness breakdown

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

Power availability20%
87
Speed to power15%
56
Fiber connectivity12%
66
Energy cost10%
81
Water risk8%
88
Natural hazard8%
35
Buildability7%
92
Labor market4%
50
DC cluster4%
70
Land / acreage3%
42
Construction cost3%
64
Gas pipeline2%
99
Tax incentive2%
100
Climate / cooling2%
70

Nearby comparable sites

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

Sites near TAP136941
SiteTypeVoltageCapacityQueue waitScore
TAP137909Substation-Adjacent345 kV600 MW2.2 yrs71.9
WEMPLETOWNSubstation-Adjacent345 kV600 MW2.2 yrs71.7
TAP137873Substation-Adjacent345 kV600 MW2.2 yrs71.6
UNKNOWN124165Substation-Adjacent345 kV600 MW2.2 yrs71.4
TAP136942Substation-Adjacent345 kV600 MW2.2 yrs70.0
TAP155879Substation-Adjacent138 kV100 MW2.2 yrs69.0
UNKNOWN121942Substation-Adjacent138 kV100 MW2.2 yrs68.3
WEMPLETOWNSubstation-Adjacent345 kV600 MW1.4 yrs68.3

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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This page shows a public slice of the GridCensus dataset for TAP136941, Winnebago 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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