Grounded Compute

Connecticut · data as of 1 Nov 2026

Connecticut: 16 MW of existing data centers. 544+ MW in the pipeline.

13 projects tracked from county filings, state records and news. Status and permit facts link to their sources.

We haven't yet searched Connecticut for data center projects beyond the ones we track here.

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Operating
16 MW
5 projects
Under construction
None
0 projects
Planned
544+ MW
8 projects
Proposed projects; not all will be built.
13
Projects tracked
all stages
4
Counties and cities with a project
see the table below

Projects by stage

StageProjectsMW
Announced6 projects512+ MW
Land & zoning2 projectsunder 100 MW
Operating5 projects16 MW
Total13 projects560+ MW

+ = at least. MW includes Grounded Compute research (Q2 2026) where no public source gives a value.

Where the pipeline is

Counties shaded by MW

Middlesex CountyNew Haven CountyWindham CountyNew London CountyFairfield CountyTolland CountyLitchfield CountyHartford CountyCT-NEW-0003 · Announced · 100–500 MWCT-NWL-0003 · Announced · 100–500 MW365 Data Centers · 80 Merritt Boulevard, Trumbull · Operating · under 100 MWCyrusOne · 6 Norden Place, Norwalk · Operating · under 100 MWCyrusOne · 10 Riverbend Drive South, Stamford · Operating · under 100 MWAvison Young · 25 Holly Drive, Newington · Operating · under 100 MWTierPoint · 108 Bank Street, Waterbury · Operating · under 100 MWCT-NEW-0002 · Announced · under 100 MWCT-NWL-0001 · Announced · under 100 MWCT-NWL-0006 · Land & zoning · under 100 MWCT-NWL-0002 · Announced · MW not reportedCT-NWL-0004 · Announced · MW not reportedCT-NWL-0005 · Land & zoning · MW not reported365 Data CentersCyrusOneCyrusOneAvison YoungTierPoint

13 of 13 projects mapped · locations from our project list · as of 1 Nov 2026

County shading

  • Under 500 MW
  • 500–2,000 MW
  • 2,000+ MW

Data center projects

  • Planned
  • Permitted
  • Under construction
  • Operating
  • Withdrawn

Pin size: MW

Counties with the most MW

+ = at least

Moratoriums

As of 31 Oct 2026, we count at least 4 local data center pauses in force in Connecticut, no bans and 1 proposal, across its counties, cities and townships. At state level, a bill or proposal is pending.

Connecticut moratorium tracker: every row with its source

Counties with a project (4)

Counties with 3 or more projects have their own page

CountyProjectsUnder construction or operatingMW
New London County60320+ MW
Fairfield County3315 MW
New Haven County31224 MW
Hartford County11under 100 MW
4 counties135Calculated

Projects

5 projects named free · 8 more in the Connecticut file

Developer · addressCountyStageMW rangeDatesID
365 Data Centers · 80 Merritt Boulevard, TrumbullFairfield CountyOperatingunder 100 MWFirst recorded 25 Oct 2026CT-FAI-0001
CyrusOne · 6 Norden Place, NorwalkFairfield CountyOperatingunder 100 MWFirst recorded 25 Oct 2026CT-FAI-0002
CyrusOne · 10 Riverbend Drive South, StamfordFairfield CountyOperatingunder 100 MWFirst recorded 25 Oct 2026CT-FAI-0003
Avison Young · 25 Holly Drive, NewingtonHartford CountyOperatingunder 100 MWFirst recorded 25 Oct 2026CT-HAR-0001
TierPoint · 108 Bank Street, WaterburyNew Haven CountyOperatingunder 100 MWFirst recorded 25 Oct 2026CT-NEW-0001
Developer and address: in the paid fileNew London CountyLand & zoningMW not reportedLast change 1 Nov 2026CT-NWL-0005
Developer and address: in the paid fileNew London CountyLand & zoningunder 100 MWLast change 1 Nov 2026CT-NWL-0006
Developer and address: in the paid fileNew Haven CountyAnnouncedunder 100 MWLast change 1 Nov 2026CT-NEW-0002
Developer and address: in the paid fileNew Haven CountyAnnounced100–500 MWLast change 1 Nov 2026CT-NEW-0003
Developer and address: in the paid fileNew London CountyAnnouncedunder 100 MWLast change 1 Nov 2026CT-NWL-0001
Developer and address: in the paid fileNew London CountyAnnouncedMW not reportedLast change 1 Nov 2026CT-NWL-0002
Developer and address: in the paid fileNew London CountyAnnounced100–500 MWLast change 1 Nov 2026CT-NWL-0003
Developer and address: in the paid fileNew London CountyAnnouncedMW not reportedLast change 1 Nov 2026CT-NWL-0004

8 more projects: names, developers and sources in the Connecticut file →

Show all 13

FAQ

How many data centers are under construction in Connecticut?
0 of 13, as of 1 Nov 2026. 5 more operating.
How much data center capacity is in Connecticut's pipeline?
544+ MW in the pipeline (None under construction, 544+ MW planned), and 16 MW operating. These are floors: where no public source gives a MW value, the total uses Grounded Compute research (Q2 2026).
Which Connecticut county has the most data center projects?
New London County: 6 projects.

Cite this page

Source: Grounded Compute, Connecticut data centers, 1 Nov 2026. https://groundedcompute.com/us/connecticut

The Connecticut file: every tracked project, with its sources

  • Connecticut file: every project named, with developer and address
  • MW, and source links on status and permit fields
  • Excel workbook + CSV, refreshed monthly
Price set at launchConnecticut · one named user · licences open soonJoin the waitlistFree sample county

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