Greenfield (PRATTS JUNCTION - BEAR SWAMP)
GreenfieldFranklin County, Massachusetts · ISO-NE
At a glance
Greenfield (PRATTS JUNCTION - BEAR SWAMP) is a greenfield datacenter candidate site in Franklin County, Massachusetts, scoring 52.3/100 DC Readiness — 21st of 120 scored sites in the county. Its nearest substation is PRATTS JUNCTION. It sits in the ISO-NE grid region, where interconnection has averaged 4.3 years from request to operation. GridCensus catalogs 300 MW of candidate capacity here.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Site characteristics
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 Greenfield (PRATTS JUNCTION - BEAR SWAMP) compare with other sites in Franklin County?
Greenfield (PRATTS JUNCTION - BEAR SWAMP) ranks 21st of 120 scored candidate sites in Franklin County. Its 52.3/100 is roughly in line with the county average of 49.8. It is roughly in line with the Massachusetts average of 54.2 and roughly in line with the national average of 53.2.
Against the Massachusetts average, its strongest sub-score is power availability (50 vs 35) and its weakest is fiber connectivity (54 vs 79). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (PRATTS JUNCTION - BEAR SWAMP) to power, fiber and other datacenters?
The nearest mapped substation, PRATTS JUNCTION, is the closest grid connection point on record and operates at 230 kV. For connectivity, the nearest internet exchange facility is Cogent Springfield MA at 40.7 miles. 6 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Cogent Springfield MA, 40.7 miles away.
What are the flood, water and hazard risks at Greenfield (PRATTS JUNCTION - BEAR SWAMP)?
At the county level, FEMA's National Risk Index rates Franklin County "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 Franklin County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| VERMONT YANKEE | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 61.4 |
| NORTHFIELD | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 60.7 |
| BEAR SWAMP | Substation-Adjacent | 230 kV | 300 MW | 4.3 yrs | 58.8 |
| TAP135582 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 54.8 |
| UNKNOWN157944 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 54.5 |
| TAP155823 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 54.5 |
| UNKNOWN157942 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 54.5 |
| UNKNOWN172513 | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 54.5 |
Greenfield (PRATTS JUNCTION - BEAR SWAMP): common questions
What is the DC Readiness score of Greenfield (PRATTS JUNCTION - BEAR SWAMP)?
Greenfield (PRATTS JUNCTION - BEAR SWAMP) scores 52.3/100 on the GridCensus DC Readiness scale, rated fair. It ranks 21st of 120 scored sites in Franklin County. The Franklin County average is 49.8 and the Massachusetts average is 54.2.
What is the nearest substation to Greenfield (PRATTS JUNCTION - BEAR SWAMP)?
The nearest mapped substation is PRATTS JUNCTION, at 230 kV. GridCensus catalogs 300 MW of candidate capacity for the site.
What grid region is Greenfield (PRATTS JUNCTION - BEAR SWAMP) in?
Greenfield (PRATTS JUNCTION - BEAR SWAMP) is in the ISO-NE region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
How far is Greenfield (PRATTS JUNCTION - BEAR SWAMP) from an internet exchange?
The nearest internet exchange facility is Cogent Springfield MA, about 40.7 miles away; 6 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, “Greenfield (PRATTS JUNCTION - BEAR SWAMP), Franklin County, MA”, https://gridcensus.com/datacenter-sites/massachusetts/franklin-county/greenfield-pratts-junction-bear-swamp-9ccdf1a9 (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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