Connecticut data centers: what the public record shows.

These notes name selected records, say which kinds of public evidence were checked and show what remains missing. They do not add anything to the published counts.

• economic development incentives — Checked
  • No public DECD register of qualified data center agreements or certificates was found; the page offers only staff contact details.
  • Whether any DECD agreement has been executed, and with whom, could not be established from an opened source.

  Selected records

  • Office of Data Infrastructure Administration and Security – About (data center tax incentive program, PA 21-1) · Connecticut Department of Economic and Community Development
• utility commission large load — Partly checked
  • Both PURA docket entry points tried failed, so no PURA large-load tariff, special contract or electric service agreement docket was searched.
  • No ISO-NE or Eversource large-load interconnection queue record was consulted.

  Selected records

  • Petition No. 1586 docket index – Dominion Energy Nuclear Connecticut, Inc., Millstone Power Station site boundaries · Connecticut Siting Council
  • DRAFT Staff Report, Petition No. 1586, Dominion Energy Nuclear Connecticut, Inc., Rope Ferry Road, Waterford (December 15, 2023) · Connecticut Siting Council
  • Petition List 1500-1999 (dispositions of Siting Council petitions) · Connecticut Siting Council
• environmental construction permits — Partly checked
  • DEEP's permit-issuance and public-notice databases were not queried; only the programme pages were read.
  • Municipal building and grading permit systems were not reachable (see the municipal family).
  • No stormwater construction general permit registration list was searched.

  Selected records

  • Air Permitting & Inventory · Connecticut Department of Energy and Environmental Protection
• municipal planning assessor gis — Checked
  • Norwalk, Waterford and Bozrah municipal sites (207.38.77.0/24 and 207.38.78.0/24 hosts) refused all connections, so no planning case file, zoning decision or building permit was read.
  • The CAMA layer's Location and Parcel_ID fields are null for many Norwalk rows, so 6 Norden Place could not be matched; absence from the query is not evidence of absence on the ground.
  • The assessor use code is the only screen applied; data centers coded under a generic commercial or industrial use would not appear.

  Selected records

  • Connecticut CAMA and Parcel Layer – query State_Use_Description LIKE '%DATA%' · Connecticut GIS Office (statewide CAMA and parcel layer, C.G.S. Sec. 4d-90-92)
  • Connecticut CAMA and Parcel Layer – query Town_Name='Waterford' AND Owner LIKE '%DOMINION ENERGY NUCLEAR%' · Connecticut GIS Office (statewide CAMA and parcel layer, C.G.S. Sec. 4d-90-92)
• tax abatement development agreements — Checked
  • The executed Waterford host municipality fee agreement was never read (unavailable during review).
  • The Bozrah draft agreement with NE Edge LLC was never read (timeout).
  • No Connecticut tax-abatement, PILOT or development agreement outside the PA 21-1 host-fee mechanism was searched.

  Selected records

  • Groton Data Center Host Municipality Fee Agreement (town notice page) · Town of Groton, Connecticut
  • Town of Groton Council item 2022-43 — Data Center Update · Town of Groton, Connecticut
• operator disclosures — Checked
  • Amazon Web Services, Microsoft, Google, Meta, Oracle and Apple were not individually checked for Connecticut sites; none appeared in any source opened here.
  • Colocation operators beyond CyrusOne (for example 365 Data Centers, Evocative, Digital Realty) were not swept.
  • Ownership of the NYM5 building was not confirmed from an opened source.

  Selected records

  • Norwalk, CT: NYM5 – data center site page · CyrusOne
• open datasets directories — Checked
  • Directory listings (Data Center Map, Baxtel, datacenters.com) were seen only in search results and were not yet reviewed directly, so a 16 MW figure they report for NYM5 is not recorded anywhere in the current research record.

  Selected records

  • Compute Atlas facilities.json snapshot 71df145 – Connecticut extract (2 records) · Compute Atlas
• historical closures withdrawals names — Checked
  • The Waterford town record of the termination was not retrieved; the newspaper account is paywalled and the supporting statement comes from an advocacy site.
  • The Groton Town Council minutes or resolution discontinuing the NE Edge agreement were not retrieved.
  • No search was made for older Connecticut data center closures, demolitions or renames before 2021.

  Selected records

  • CCWEL Resources – Waterford data center project status · CCWEL (Citizens Concerned for Waterford's Environment and Land)
  • Waterford data center plan likely over as host agreement expires · The Day (New London)
  • Groton Town Council votes to discontinue efforts to pursue agreement with data center developer · The Day (New London)
• news and other discovery — Checked
  • No systematic Connecticut news sweep was run; news was used only to locate primary records.

  Selected records

  • NE Edge transfers Waterford data center rights to new company · FFCCT