IBM Southbury
BrownfieldSouthbury, New Haven, Connecticut · Bloom Energy
IBM Southbury is a natural gas plant in Southbury, New Haven, Connecticut, retired 2023-12-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 1 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.
Former use & capacity
Grid hookup & remediation
Nearby datacenter candidate sites
Scored candidate sites near IBM Southbury, ranked by DC Readiness.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| FROST BRIDGE | Substation-Adjacent | CT | Naugatuck Valley Planning Region | 345 kV | 600 MW | 3.5 yrs | 70.0 |
| BRIDGEPORT RESCO | Substation-Adjacent | CT | Greater Bridgeport Planning Region | 345 kV | 600 MW | 3.5 yrs | 69.7 |
| UNKNOWN133278 | Substation-Adjacent | CT | South Central Connecticut Planning Region | 345 kV | 600 MW | 3.5 yrs | 69.4 |
| PLUMTREE | Substation-Adjacent | CT | Western Connecticut Planning Region | 345 kV | 600 MW | 3.5 yrs | 67.0 |
| LONG MOUNTAIN | Substation-Adjacent | NY | Dutchess County | 345 kV | 600 MW | 3.5 yrs | 66.9 |
| BRIDGEPORT HARBOR | Substation-Adjacent | CT | Greater Bridgeport Planning Region | 345 kV | 600 MW | 3.5 yrs | 66.8 |
| FREIGHT | Substation-Adjacent | CT | Naugatuck Valley Planning Region | 115 kV | 100 MW | 3.5 yrs | 65.7 |
| NOERA | Substation-Adjacent | CT | Naugatuck Valley Planning Region | 115 kV | 100 MW | 3.5 yrs | 65.7 |
Nearby internet exchanges
- CyrusOne NorwalkNorwalk, CT · 3 networks
- Cloudpath CT19 (5 Landmark Sq)Stamford, CT · 2 networks
- Cloudpath CT1 (26 Fahey St)Stamford, CT · 1 networks
- SD / Comsat Southbury Ground StationSouthbury, CT · 1 networks
See all datacenter sites in Connecticut →
Dataset updated . Screening estimates derived from public data sources.
Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for IBM Southbury, Southbury, New Haven, Connecticut. 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.