Datacenter Sites in Connecticut
Connecticut has 919 scored datacenter candidate sites averaging 57.1/100 DC Readiness. Industrial parcels lead the inventory (502 sites). Most sites interconnect through ISO-NE. The state's candidate sites carry a catalogued aggregate of 27.9k MW and average a 3.9 yrs interconnection-queue wait.
919
Candidate sites
57.1/100
Avg DC Readiness
27.9k MW
Catalogued capacity
theoretical aggregate
3.9 yrs
Avg queue wait
By site type
Average sub-score profile
How Connecticut's candidate sites score on each DC Readiness dimension (0–100 average).
Power availability
35.5
Speed-to-power
38.8
Fiber
91.8
Water
86.0
Hazard resilience
76.6
Top 25 datacenter sites in Connecticut
Ranked by DC Readiness.
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| BRIDGEPORT RESCO | Substation-Adjacent | Greater Bridgeport Planning Region | 345 kV | 600 MW | 3.9 yrs | 71.4 |
| NEW HAVEN HARBOR | Substation-Adjacent | South Central Connecticut Planning Region | 345 kV | 600 MW | 3.9 yrs | 69.1 |
| UNKNOWN135915 | Substation-Adjacent | Southeastern Connecticut Planning Region | 345 kV | 600 MW | 3.9 yrs | 68.9 |
| FROST BRIDGE | Substation-Adjacent | Naugatuck Valley Planning Region | 345 kV | 600 MW | 3.9 yrs | 68.8 |
| MONTVILLE | Substation-Adjacent | Southeastern Connecticut Planning Region | 345 kV | 600 MW | 3.9 yrs | 68.7 |
| TAP136499 | Substation-Adjacent | Capitol Planning Region | 345 kV | 600 MW | 3.9 yrs | 68.7 |
| MANCHESTER | Substation-Adjacent | Capitol Planning Region | 345 kV | 600 MW | 3.9 yrs | 68.6 |
| PLUMTREE | Substation-Adjacent | Western Connecticut Planning Region | 345 kV | 600 MW | 3.9 yrs | 68.5 |
| NO. WALL | Substation-Adjacent | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 3.9 yrs | 68.5 |
| NORTH BLOOMFIELD | Substation-Adjacent | Capitol Planning Region | 345 kV | 600 MW | 3.9 yrs | 68.2 |
| BARBOUR HILL | Substation-Adjacent | Capitol Planning Region | 345 kV | 600 MW | 3.9 yrs | 68.2 |
| SOUTHINGTON | Substation-Adjacent | Naugatuck Valley Planning Region | 345 kV | 600 MW | 3.9 yrs | 68.1 |
| KLEEN | Substation-Adjacent | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 3.9 yrs | 67.9 |
| SCOVILL ROCK | Substation-Adjacent | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 3.9 yrs | 67.5 |
| LONG MOUNTAIN | Substation-Adjacent | Dutchess County | 345 kV | 600 MW | 3.9 yrs | 66.9 |
| HADDAM NECK | Substation-Adjacent | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 3.9 yrs | 66.4 |
| CARD` | Substation-Adjacent | Southeastern Connecticut Planning Region | 345 kV | 600 MW | 3.9 yrs | 66.3 |
| HADDAM | Substation-Adjacent | Lower Connecticut River Valley Planning Region | 345 kV | 600 MW | 3.9 yrs | 66.2 |
| KILLINGLY | Substation-Adjacent | Northeastern Connecticut Planning Region | 345 kV | 600 MW | 3.9 yrs | 66.1 |
| DEVON | Substation-Adjacent | Greater Bridgeport Planning Region | 115 kV | 100 MW | 3.9 yrs | 65.6 |
| SHEPAUG | Substation-Adjacent | Naugatuck Valley Planning Region | 115 kV | 100 MW | 3.9 yrs | 64.7 |
| WATERSIDE | Substation-Adjacent | Westchester County | 115 kV | 100 MW | 3.9 yrs | 64.4 |
| FREIGHT | Substation-Adjacent | Naugatuck Valley Planning Region | 115 kV | 100 MW | 3.9 yrs | 63.8 |
| TAP136500 | Substation-Adjacent | Capitol Planning Region | 115 kV | 100 MW | 3.9 yrs | 63.7 |
| ELMWEST | Substation-Adjacent | South Central Connecticut Planning Region | 115 kV | 100 MW | 3.9 yrs | 63.7 |
Counties in Connecticut
10 counties with five or more scored sites.
Capitol County180 · 57.9Naugatuck Valley Planning Region159 · 58.0Southeastern Connecticut County103 · 57.5South Central Connecticut County100 · 57.5Western Connecticut County98 · 58.3Greater Bridgeport County81 · 58.4Lower Connecticut River Valley Planning Region51 · 57.8Northwest Hills County47 · 54.9Northeastern Connecticut County32 · 55.3Hartford10 · 52.0
Connecticut datacenter site selection FAQ
- How many datacenter sites are in Connecticut?
- GridCensus catalogs 919 scored datacenter candidate sites in Connecticut, with an average DC Readiness score of 57.1/100.
- What is the average interconnection-queue wait in Connecticut?
- Candidate sites in Connecticut average a 3.9 yrs interconnection-queue wait, with an average queue depth of 9 projects.
- What kind of datacenter sites are most common in Connecticut?
- Industrial sites are the most common category in Connecticut (502 sites), and most sites fall within the ISO-NE grid region.
Dataset updated . Screening estimates derived from public data sources.
Go deeper than the public screen
This page shows a public slice of the GridCensus dataset for 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.