UNKNOWN121951

Substation-Adjacent

McHenry County, Illinois · PJM

DC Readiness
66.5
Good / 100

UNKNOWN121951 is a substation-adjacent datacenter candidate site in McHenry County, Illinois, interconnecting through PJM. It screens at 66.5/100 DC Readiness with a catalogued 100 MW of candidate capacity and a 2.2 yrs average interconnection-queue wait.

Power & interconnection

Nearest substationUNKNOWN121951
Substation distance0.0 mi
Substation voltage138 kV
Available capacity100 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 IXPSBA Edge, LLC
IXP distance20.1 mi
Fiber providers12
Fiber coverage25.7%
Nearest cloud providerAzure
Nearest cloud regionnorthcentralus
Cloud region distance41.9 mi

Site characteristics

Site typeSubstation-Adjacent
Parcel ownerCOMMONWEALTH EDISON CO
Land owner typeprivate
Buildability60.0/100

Risk & environment

Flood zoneZone X
Water stress (WRI)0.60
Wetlands (NWI)Clear
Critical habitatClear
Superfund nearbyClear
Hazard sub-score65/100
Construction cost index109.8 (avg 100)

Location context

Nearest datacenterMicrosoft Data Center - Hoffman Estates
DC distance12.6 mi
Nearest rail2.4 mi
Nearest gas pipeline0.7 mi
Nearest fiber route23.0 mi
County hazard (FEMA NRI)Relatively High (35)
DC tax incentiveYes (sales_tax_exemption)
Commercial electricity8.86¢/kWh
Industrial electricity5.29¢/kWh
Cooling degree days1,100
Heating degree days5,600
Land price / acre$8,304
See all datacenter sites in McHenry 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%
58
Speed to power15%
56
Fiber connectivity12%
65
Energy cost10%
81
Water risk8%
90
Natural hazard8%
65
Buildability7%
60
Labor market4%
50
DC cluster4%
90
Land / acreage3%
42
Construction cost3%
59
Gas pipeline2%
98
Tax incentive2%
100
Climate / cooling2%
70

Nearby comparable sites

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

Sites near UNKNOWN121951
SiteTypeVoltageCapacityQueue waitScore
SILVER LAKESubstation-Adjacent345 kV600 MW2.2 yrs74.1
PLEASANT VALLEYSubstation-Adjacent345 kV600 MW2.2 yrs72.7
UNKNOWN121934Substation-Adjacent138 kV100 MW2.2 yrs69.7
TAP160108Substation-Adjacent138 kV100 MW2.2 yrs68.7
TAP160107Substation-Adjacent138 kV100 MW2.2 yrs67.7
Greenfield (WAYNE - LIBERTYVILLE)Greenfield345 kV600 MW2.2 yrs67.7
UNKNOWN121953Substation-Adjacent138 kV100 MW2.2 yrs67.4
TAP137885Substation-Adjacent138 kV100 MW2.2 yrs67.3

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 UNKNOWN121951, McHenry 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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