THREE MILE ISLAND

Substation-Adjacent

Lebanon County, Pennsylvania · PJM

DC Readiness
70.9
Excellent / 100

THREE MILE ISLAND is a substation-adjacent datacenter candidate site in Lebanon County, Pennsylvania, interconnecting through PJM. It screens at 70.9/100 DC Readiness with a catalogued 1,000 MW of candidate capacity and a 3.0 yrs average interconnection-queue wait.

Power & interconnection

Nearest substationTHREE MILE ISLAND
Substation distance0.0 mi
Substation voltage500 kV
Available capacity1,000 MW
LMP zonePJM_PECO
Wholesale LMP$38.56/MWh
Utility commercial rate0.08¢/kWh

Speed to power

ISO / RTO regionPJM
Queue depth411
Avg queue wait3.0 yrs
Recent queue wait1.6 yrs
Completion rate19%
Withdrawal rate81%

Connectivity

Nearest IXPOmega PA1
IXP distance32.8 mi
Fiber providers8
Fiber coverage52.4%
Nearest cloud providerAWS
Nearest cloud regionus-east-1
Cloud region distance92.1 mi

Site characteristics

Site typeSubstation-Adjacent
Parcel ownerMETROPOLITAN EDISON CO
Land owner typeprivate
Buildability45.0/100
Land cover (NLCD)Deciduous Forest

Risk & environment

Flood zoneZone X
Water stress (WRI)0.50
Wetlands (NWI)Clear
Critical habitatClear
Superfund nearbyClear
Hazard sub-score72/100
Construction cost index88.5 (avg 100)

Location context

Nearest datacenterOmega PA1
DC distance32.8 mi
Nearest rail2.8 mi
Nearest gas pipeline7.1 mi
Nearest fiber route48.8 mi
County hazard (FEMA NRI)Relatively Moderate (28)
DC tax incentiveYes (sales_tax_exemption)
Commercial electricity7.76¢/kWh
Industrial electricity5.69¢/kWh
Cooling degree days800
Heating degree days5,600
Land price / acre$16,709
See all datacenter sites in Lebanon County →

Incentive detail: Keystone Opportunity Zone/KOEZ sales and property tax exemptions in designated areas.

Full DC Readiness breakdown

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

Power availability20%
100
Speed to power15%
42
Fiber connectivity12%
63
Energy cost10%
83
Water risk8%
92
Natural hazard8%
72
Buildability7%
45
Labor market4%
50
DC cluster4%
50
Land / acreage3%
30
Construction cost3%
76
Gas pipeline2%
77
Tax incentive2%
100
Climate / cooling2%
85

Nearby comparable sites

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

Sites near THREE MILE ISLAND
SiteTypeVoltageCapacityQueue waitScore
UNKNOWN123852Substation-Adjacent230 kV300 MW3.0 yrs71.7
UNKNOWN123853Substation-Adjacent230 kV300 MW3.0 yrs70.7
IRONWOOD LLCSubstation-Adjacent230 kV300 MW3.0 yrs69.8
Greenfield (ALBURTIS - JUNIATA)Greenfield500 kV1,000 MW3.0 yrs69.0
Greenfield (ALBURTIS - JUNIATA)Greenfield500 kV1,000 MW3.0 yrs68.9
Greenfield (ALBURTIS - JUNIATA)Greenfield500 kV1,000 MW3.0 yrs68.8
Greenfield (ALBURTIS - JUNIATA)Greenfield500 kV1,000 MW3.0 yrs68.1
Greenfield (HOSENSACK (500 KV SUB) - THREE)Greenfield500 kV1,000 MW3.0 yrs67.7

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 THREE MILE ISLAND, Lebanon 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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