Skip to content
Gridcensus

Mine Site

Former Mine

Middlesex, Massachusetts · ISO-NE

DC Readiness
52.8
Fair / 100

Mine Site is a former mine datacenter candidate site in Middlesex, Massachusetts, interconnecting through ISO-NE. It screens at 52.8/100 DC Readiness and a 3.9 yrs average interconnection-queue wait.

Power & interconnection

UtilityNSTAR ELECTRIC COMPANYinvestor ownedmoderate to large load · terms ≥ 50 MW

Speed to power

Interconnection outlookModerate
≈ 3.9 yrs typical interconnection wait

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

ISO / RTO regionISO-NE
Queue depth25
Avg queue wait3.9 yrs

Connectivity

Nearest IXPDigital Realty BOS (55 Middlesex)
IXP distance3.2 mi
Fiber providers11
Fiber coverage91.9%

Site characteristics

Site typeFormer Mine
Former useMining: SandAndGravel; Status: Abandoned
Cleanup statusAbandoned

Risk & environment

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

Location context

Nearest datacenterDigital Realty BOS (55 Middlesex)
DC distance3.2 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

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

Site location

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

Get alerts

Track Mine Site

Get an email when its DC-readiness score, available capacity, or interconnection-queue status changes.

No spam. Just the alerts you asked for.

Full DC Readiness breakdown

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

Power availability20%
30
Speed to power20%
37
Fiber connectivity12%
95
Energy cost10%
50
Water risk7%
88
Natural hazard6%
78
Buildability7%
50
Labor market4%
50
DC cluster4%
80
Land / acreage3%
30
Construction cost3%
50
Gas pipeline2%
10
Tax incentive1%
0
Climate / cooling1%
95

Nearby comparable sites

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

Sites near Mine Site
SiteTypeVoltageCapacityQueue waitScore
UNKNOWN133682Substation-Adjacent450 kV600 MW3.9 yrs66.3
TEWKSBURY NO. 22ASubstation-Adjacent345 kV600 MW3.9 yrs65.2
LEXINGTONSubstation-Adjacent345 kV600 MW3.9 yrs65.1
WALTHAMSubstation-Adjacent230 kV300 MW3.9 yrs64.3
Westford St. LandfillBrownfield—2 MW3.9 yrs63.5
Industri-plex SolarBrownfield345 kV4 MW3.9 yrs63.1
SUDBURYSubstation-Adjacent230 kV300 MW3.9 yrs62.7
UNKNOWN140692Substation-Adjacent115 kV100 MW3.9 yrs62.4

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 Mine Site, Middlesex. Pro and Enterprise plans unlock the full 147,272-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.