TANNER STREET GENERATION

Substation-Adjacent

Middlesex, Massachusetts · ISO-NE

DC Readiness
67.8
Good / 100

TANNER STREET GENERATION is a substation-adjacent datacenter candidate site in Middlesex, Massachusetts, interconnecting through ISO-NE. It screens at 67.8/100 DC Readiness with a catalogued 100 MW of candidate capacity and a 3.5 yrs average interconnection-queue wait.

Power & interconnection

Nearest substationTANNER STREET GENERATION
Substation distance0.0 mi
Substation voltage115 kV
Available capacity100 MW
LMP zoneISONE_MA
Wholesale LMP$69.64/MWh
Utility commercial rate0.17¢/kWh

Speed to power

ISO / RTO regionISO-NE
Queue depth32
Avg queue wait3.5 yrs
Recent queue wait3.5 yrs
Completion rate25%
Withdrawal rate75%

Connectivity

Nearest IXPMarkley Group Lowell
IXP distance0.3 mi
Fiber providers11
Fiber coverage91.1%
Nearest cloud providerAWS
Nearest cloud regionus-east-1
Cloud region distance406.8 mi

Site characteristics

Parcel ownerMassachusetts Bay Transit Authority
Land owner typeprivate
Buildability100.0/100
Land cover (NLCD)Developed, High Intensity
Former usegas
Existing capacity151 MW
Retirement date2024-10-01

Risk & environment

Flood zoneZone X
Water stress (WRI)0.60
Wetlands (NWI)Clear
Critical habitatClear
Superfund nearbyPresent
Superfund siteTANNER STREET GENERATION LLC
Hazard sub-score68/100
Construction cost index128.8 (avg 100)

Location context

Nearest datacenterMarkley Data Center
DC distance0.4 mi
Nearest rail0.1 mi
Nearest gas pipeline2.7 mi
Nearest fiber route16.6 mi
County hazard (FEMA NRI)Relatively Low (22)
DC tax incentiveNo
Commercial electricity17.00¢/kWh
Industrial electricity16.19¢/kWh
Cooling degree days600
Heating degree days5,900
Land price / acre$22,138

Full DC Readiness breakdown

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

Power availability20%
56
Speed to power15%
48
Fiber connectivity12%
100
Energy cost10%
57
Water risk8%
92
Natural hazard8%
68
Buildability7%
100
Labor market4%
50
DC cluster4%
100
Land / acreage3%
30
Construction cost3%
43
Gas pipeline2%
91
Tax incentive2%
0
Climate / cooling2%
95

Nearby comparable sites

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

Sites near TANNER STREET GENERATION
SiteTypeVoltageCapacityQueue waitScore
UNKNOWN133682Substation-Adjacent450 kV600 MW3.5 yrs71.8
TEWKSBURY NO. 22ASubstation-Adjacent345 kV600 MW3.5 yrs71.3
WALTHAMSubstation-Adjacent230 kV300 MW3.5 yrs70.9
TEWKSBURY SUBSTATIONSubstation-Adjacent230 kV300 MW3.5 yrs70.5
LAWRENCE ROADSubstation-Adjacent345 kV600 MW3.5 yrs70.1
LEXINGTONSubstation-Adjacent345 kV600 MW3.5 yrs68.9
PERRY STREETSubstation-Adjacent115 kV100 MW3.5 yrs66.7
TAP140681Substation-Adjacent115 kV100 MW3.5 yrs66.6

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 TANNER STREET GENERATION, Middlesex. 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.