Substation-Adjacent site at 42.334, -71.548
Substation-AdjacentMiddlesex, Massachusetts · ISO-NE
At a glance
Substation-Adjacent site at 42.334, -71.548 is a substation-adjacent datacenter candidate site in Middlesex, Massachusetts, scoring 59.9/100 DC Readiness — 49th of 281 scored sites in the county. Its nearest substation is UNKNOWN133508 (0 mi, 69 kV). It sits in the ISO-NE grid region and the MASSACHUSETTS BAY TRANS AUTHORITY service territory, where interconnection has averaged 4.3 years from request to operation. GridCensus catalogs 50 MW of candidate capacity here.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Site location
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How does Substation-Adjacent site at 42.334, -71.548 compare with other sites in Middlesex?
Substation-Adjacent site at 42.334, -71.548 ranks 49th of 281 scored candidate sites in Middlesex. Its 59.9/100 is roughly in line with the county average of 56.9. It is about 11% above the Massachusetts average of 54.2 and about 13% above the national average of 53.2.
Against the Massachusetts average, its strongest sub-score is fiber connectivity (98 vs 79) and its weakest is speed to power (47 vs 47). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Substation-Adjacent site at 42.334, -71.548 to power, fiber and other datacenters?
The nearest mapped substation, UNKNOWN133508, is about 0 miles away and operates at 69 kV. For connectivity, the nearest internet exchange facility is Crown Castle Marlboro (34 St Martin) at 2.1 miles. 11 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is BDC1 - 34 Saint Martin Dr, 2.2 miles away.
What are the flood, water and hazard risks at Substation-Adjacent site at 42.334, -71.548?
At the county level, FEMA's National Risk Index rates Middlesex "Relatively Low".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Middlesex, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN133682 | Substation-Adjacent | 450 kV | 600 MW | 4.3 yrs | 68.3 |
| TEWKSBURY NO. 22A | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 67.2 |
| LEXINGTON | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 67.0 |
| WALTHAM | Substation-Adjacent | 230 kV | 300 MW | 4.3 yrs | 66.3 |
| SUDBURY | Substation-Adjacent | 230 kV | 300 MW | 4.3 yrs | 64.7 |
| Westford St. Landfill | Brownfield | — | 2 MW | 4.3 yrs | 64.7 |
| Industri-plex Solar | Brownfield | 345 kV | 4 MW | 4.3 yrs | 64.3 |
| UNKNOWN140692 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 63.6 |
Substation-Adjacent site at 42.334, -71.548: common questions
What is the DC Readiness score of Substation-Adjacent site at 42.334, -71.548?
Substation-Adjacent site at 42.334, -71.548 scores 59.9/100 on the GridCensus DC Readiness scale, rated good. It ranks 49th of 281 scored sites in Middlesex. The Middlesex average is 56.9 and the Massachusetts average is 54.2.
What is the nearest substation to Substation-Adjacent site at 42.334, -71.548?
The nearest mapped substation is UNKNOWN133508, about 0 miles away, at 69 kV. GridCensus catalogs 50 MW of candidate capacity for the site.
Which electric utility serves Substation-Adjacent site at 42.334, -71.548?
MASSACHUSETTS BAY TRANS AUTHORITY (political subdivision) holds the retail service territory that contains the site.
What grid region is Substation-Adjacent site at 42.334, -71.548 in?
Substation-Adjacent site at 42.334, -71.548 is in the ISO-NE region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is Substation-Adjacent site at 42.334, -71.548 from an internet exchange?
The nearest internet exchange facility is Crown Castle Marlboro (34 St Martin), about 2.1 miles away; 11 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Substation-Adjacent site at 42.334, -71.548, Middlesex, MA”, https://gridcensus.com/datacenter-sites/massachusetts/middlesex/unknown133508-f3e09e44 (data as of October 10, 2026).
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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