51 Colony
IndustrialSouth Central Connecticut County, Connecticut · ISO-NE
At a glance
51 Colony is an industrial datacenter candidate site in South Central Connecticut County, Connecticut, scoring 55.6/100 DC Readiness — 65th of 100 scored sites in the county. It sits in the ISO-NE grid region and the CONNECTICUT LIGHT & POWER CO service territory, where interconnection has averaged 4.3 years from request to operation.
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.
Incentive detail: Sales tax exemption on computer & data processing equipment.
Site location
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How does 51 Colony compare with other sites in South Central Connecticut County?
51 Colony ranks 65th of 100 scored candidate sites in South Central Connecticut County. Its 55.6/100 is roughly in line with the county average of 57.2. It is roughly in line with the Connecticut average of 56.7 and roughly in line with the national average of 53.2.
Against the Connecticut average, its strongest sub-score is natural hazard (80 vs 77) and its weakest is power availability (30 vs 36). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is 51 Colony to power, fiber and other datacenters?
For connectivity, the nearest internet exchange facility is HDC1 - 108 Bank St at 12.4 miles. The closest operating datacenter on record is Datacenter 00959969621, 4 miles away.
What are the flood, water and hazard risks at 51 Colony?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). At the county level, FEMA's National Risk Index rates South Central Connecticut 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 South Central Connecticut County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| NEW HAVEN HARBOR | Substation-Adjacent | 345 kV | 600 MW | 4.3 yrs | 68.8 |
| ELMWEST | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 63.4 |
| ELM WEST | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 63.4 |
| ALLINGS CROSSING | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 63.2 |
| WATER ST | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 62.6 |
| QUINNIPIAC | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 62.4 |
| SACKETT | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 62.3 |
| WOODMONT | Substation-Adjacent | 115 kV | 100 MW | 4.3 yrs | 62.3 |
51 Colony: common questions
What is the DC Readiness score of 51 Colony?
51 Colony scores 55.6/100 on the GridCensus DC Readiness scale, rated good. It ranks 65th of 100 scored sites in South Central Connecticut County. The South Central Connecticut County average is 57.2 and the Connecticut average is 56.7.
Which electric utility serves 51 Colony?
CONNECTICUT LIGHT & POWER CO (investor owned) holds the retail service territory that contains the site; its holding company is EVERSOURCE.
What grid region is 51 Colony in?
51 Colony is in the ISO-NE region. Projects interconnecting there have averaged a 4.3-year wait from queue request to operation.
Is 51 Colony in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
How far is 51 Colony from an internet exchange?
The nearest internet exchange facility is HDC1 - 108 Bank St, about 12.4 miles away.
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, “51 Colony, South Central Connecticut County, CT”, https://gridcensus.com/datacenter-sites/connecticut/south-central-connecticut-county/51-colony-15e9bf8d (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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