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DataCentersExposed
U.S. data-center footprint

Connecticut

DataCentersExposed tracks 19 AI data centers in Connecticut — 0 operating and 3 in the pipeline — across 4 counties, drawing 1.5 GW of reported power demand from 5 tracked corporate operators.

Sources: Methodology, Coverage scorecard

Reporting by · Updated May 29, 2026

Tracked
19
data centers
Operating
0
live today
Pipeline
3
proposed / building
Demand
1.5 GW
1 w/ capacity
Counties
4
touched
Operators
5
corporate parents
The story so far

Connecticut at a glance

The largest footprint in Connecticut belongs to Lumen Technologies, behind 5 tracked facilities. CyrusOne LLC, Digital Realty Trust, Inc., and Prime Data Centers round out the most active operators in the state. Many of these sites are filed under shell or project names rather than the parent's — our operator column resolves them back to the real corporate parent wherever the chain is documented.

Geographically, the buildout clusters: Western Connecticut County leads Connecticut with 2 facilities and a composite risk score of 6/100. Capitol County and Greater Bridgeport County follow. Our county risk score weights project exposure (40%), power demand (30%), water draw (15%), and land footprint (15%); the full breakdown is shown on each county page.

Connecticut is not done growing. 3 facilities are in the pipeline — proposed, permitted, or under construction — which is where residents still have a say at zoning hearings and in rate cases. Each pending project is a decision about land, water, electricity prices, and tax revenue that hasn't been finalized.

We also surface the accountability trail: 1 state bill mentioning data centers and 6 recent news items are tracked for Connecticut below, pulled from LegiScan and GDELT and refreshed automatically. Legislation is linked to the counties and operators it names; news is classified by community sentiment.

Modeled scenario · not announced

2035 Buildout Outlook

via PNNL IM3 (CC BY 4.0)

Under the model's moderate-growth scenario (5%/yr annual load growth), PNNL's IM3 model sites about 1 standardized 36 MW campus in Connecticut by 2035 — roughly 36 MW of new electricity demand and ~35 M gal/yr of cooling water. Under the higher-growth scenario (15%/yr) that climbs to 3 campuses (108 MW). For scale, we currently track 19 real data centers in Connecticut (1.5 GW of reported power).

Modeled new campuses by demand-growth scenario
  • High growth1
    36 MW · ~35 M gal/yr cooling water
  • Higher growth3
    108 MW · ~104 M gal/yr cooling water

The model assigns ~100% of these campuses' cooling to evaporative water cooling in Connecticut (the rest to mechanical/air cooling), a split it derives from local water stress and wet-bulb temperature.

These are modeled candidate sites, not announced or permitted facilities. PNNL's IM3 model places identical 36 MW unit-campuses at feasible locations under each scenario — it shows where demand could concentrate, never a specific parcel. Figures use a market-gravity weight of 50. How the model works.

Who's building

Top operators in Connecticut

Where it's concentrated

County risk leaderboard

Risk methodology
Still contested

Pipeline & proposals

20 of 19 shown

All tracked facilities

FacilityOperatorStatusCountyMW
NE Edge Data CenterProposedNew London1,500
Atlas Capital GroupProposedHartford
GotSpace Data CenterProposedNew London
Aphorio Carter Trumbull Data CenterMapped (unverified)
Cloudpath CT1 (26 Fahey St)Mapped (unverified)
Cloudpath CT19 (5 Landmark Sq)Mapped (unverified)
Cloudpath CT2 (1351 Washington Blvd)Mapped (unverified)
Crown Castle StamfordMapped (unverified)
CyrusOne NorwalkMapped (unverified)
CyrusOne NorwalkCyrusOne LLCMapped (unverified)Western Connecticut
Digital Realty New York HVN10Digital Realty Trust, Inc.Mapped (unverified)Greater Bridgeport
Ergonomic GroupMapped (unverified)Capitol
Lumen HartfordLumen TechnologiesMapped (unverified)
Lumen New HavenLumen TechnologiesMapped (unverified)
Lumen New LondonLumen TechnologiesMapped (unverified)
Lumen StamfordLumen TechnologiesMapped (unverified)
Lumen West HavenLumen TechnologiesMapped (unverified)
SD / Comsat Southbury Ground StationMapped (unverified)
TierPoint WaterburyTierPoint, LLCMapped (unverified)
amnet Data CenterPrime Data CentersMapped (unverified)Western Connecticut

Methodology & sources

Facility counts include operating, under-construction, proposed, and permitted sites. Capacity (MW) combines operator disclosures, interconnection-queue estimates, and research datasets; see each facility for provenance. County risk scores weight project exposure (40%), power demand (30%), water draw (15%), and land footprint (15%), renormalized over measured factors.

Every row carries a confidence level (high / medium / low) and a source URL. Spot an error? Tell us.