Greenfield Datacenter Sites in Connecticut
Connecticut has 143 greenfield datacenter candidate sites. Undeveloped land with no prior industrial use. Greenfield parcels offer maximum design flexibility and large contiguous footprints, but typically require full utility build-out — the speed-to-power story hinges on proximity to existing transmission.
143
Greenfield sites
60.3/100
Avg score (top 25)
Connecticut
State
Greenfield
Type
Top greenfield sites in Connecticut
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| Greenfield (LONG MOUNTAIN - FROST BRIDGE) | Greenfield | Naugatuck Valley Planning Region | 345 kV | 600 MW | 3.5 yrs | 62.4 |
| EC Near Shepaug | Greenfield | Naugatuck Valley Planning Region | — | — | 3.5 yrs | 62.3 |
| EC Near Norwalk Hospital Plant | Greenfield | Western Connecticut Planning Region | — | — | 3.5 yrs | 62.2 |
| Greenfield (LUDLOW - BARBOUR HILL) | Greenfield | Capitol Planning Region | 345 kV | 600 MW | 3.5 yrs | 62.0 |
| Greenfield (SOUTHINGTON - FROST BRIDGE) | Greenfield | Naugatuck Valley Planning Region | 345 kV | 600 MW | 3.5 yrs | 61.7 |
| EC Near Waterside Power, LLC | Greenfield | Western Connecticut Planning Region | — | — | 3.5 yrs | 61.5 |
| Greenfield (SOUTHINGTON - NO. WALL) | Greenfield | Naugatuck Valley Planning Region | 345 kV | 600 MW | 3.5 yrs | 61.3 |
| EC Near Subase Microgrid Project | Greenfield | Southeastern Connecticut Planning Region | — | — | 3.5 yrs | 61.2 |
| EC Near Subase Microgrid Project | Greenfield | Southeastern Connecticut Planning Region | — | — | 3.5 yrs | 61.1 |
| EC Near New Milford Gas Recovery | Greenfield | Naugatuck Valley Planning Region | — | — | 3.5 yrs | 60.9 |
| Greenfield (MILLSTONE - MANCHESTER) | Greenfield | Capitol Planning Region | 345 kV | 600 MW | 3.5 yrs | 60.5 |
| Greenfield (NEW HAVEN HARBOR - SCOVILL ROC) | Greenfield | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 3.5 yrs | 60.3 |
| Greenfield (NEW HAVEN HARBOR - SCOVILL ROC) | Greenfield | South Central Connecticut Planning Region | 345 kV | 600 MW | 3.5 yrs | 59.9 |
| Greenfield (LONG MOUNTAIN - FROST BRIDGE) | Greenfield | Naugatuck Valley Planning Region | 345 kV | 600 MW | 3.5 yrs | 59.9 |
| Greenfield (MILLSTONE - MANCHESTER) | Greenfield | Capitol Planning Region | 345 kV | 600 MW | 3.5 yrs | 59.7 |
| EC Near Shepaug | Greenfield | Naugatuck Valley Planning Region | — | — | 3.5 yrs | 59.6 |
| Greenfield (SOUTHINGTON - SCOVILL ROCK) | Greenfield | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 3.5 yrs | 59.6 |
| EC Near IBM Southbury | Greenfield | Naugatuck Valley Planning Region | — | — | 3.5 yrs | 59.5 |
| EC Near Waterside Power, LLC | Greenfield | Western Connecticut Planning Region | — | — | 3.5 yrs | 59.1 |
| EC Near Shepaug | Greenfield | Naugatuck Valley Planning Region | — | — | 3.5 yrs | 59.0 |
| Greenfield (MANCHESTER - KLEEN) | Greenfield | Capitol Planning Region | 345 kV | 600 MW | 3.5 yrs | 58.9 |
| EC Near Norwalk Hospital Plant | Greenfield | Western Connecticut Planning Region | — | — | 3.5 yrs | 58.7 |
| Greenfield (MILLSTONE - HADDAM) | Greenfield | Southeastern Connecticut Planning Region | 345 kV | 600 MW | 3.5 yrs | 58.6 |
| Greenfield (MILLSTONE - HADDAM) | Greenfield | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 3.5 yrs | 58.6 |
| EC Near North Main Street | Greenfield | Southeastern Connecticut Planning Region | — | — | 3.5 yrs | 58.6 |
- How many greenfield datacenter sites are in Connecticut?
- GridCensus catalogs 143 greenfield datacenter candidate sites in Connecticut.
- What is a greenfield datacenter site?
- Undeveloped land with no prior industrial use. Greenfield parcels offer maximum design flexibility and large contiguous footprints, but typically require full utility build-out — the speed-to-power story hinges on proximity to existing transmission.
Dataset updated . Screening estimates derived from public data sources.
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This page shows a public slice of the GridCensus dataset for Greenfield sites in 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.