The site from above
Permits checklist
2 granted · 5 checked, nothing on file
Approvals a campus like this normally needs (including an air permit for backup or on-site generators), and what we found.
- ✓Utility and grid approval GrantedConnecticut Siting Council · June 23, 1999: Certificate of Environmental Compatibility and Public Need approved by Connecticut Siting Council. State agency · May 2015
- ✓Declaratory ruling - Towantic Switching Station GrantedConnecticut Siting Council · May 26, 2016: Declaratory ruling - Towantic Switching Station approved by Connecticut Siting Council. State agency · Oct. 2026
- –Checked, nothing on file: Zoning approval, Site plan, Building permit, Air permit, Water and wetlands permits
Power and the grid
On-site generation on file
- On-site generation: 785 MW State agency · May 2015
What happened, and what is due
- June 23, 1999Power Certificate of Environmental Compatibility and Public Need approved by Connecticut Siting Council. State agency · May 2015
- April 20, 2015Site Project Oxford as a data-center codename does not point to Oxford CT; other Oxford data-center uses are Microsoft Oxford Data Center. State agency · Oct. 2026
- May 14, 2015Permits Certificate modification - motion to reopen and modify approved by Connecticut Siting Council. State agency · May 2015
- May 26, 2016Permits Declaratory ruling - Towantic Switching Station approved by Connecticut Siting Council. State agency · Oct. 2026
- May 21, 2018Power 800 MW class figure in Oxford is Towantic generation: 805 MW installed / 785 MW nominal, operating since May 2018. Company · June 2025
- Aug. 21, 2025Power CT Siting Council Facility List for Oxford lists Towantic generation, substations, transmission, solar, BESS. State agency · Oct. 2026
Since Oct. 2026: 1 satellite capture. Satellite · Oct. 2026
Owners, partners and builders
- CPV Towantic, operator
- Langan Engineering & Environmental Services, design team
Open questions
- IT capacity actually running today.
- Remaining build-out and its timing.
31 records from 9 documents
Drawn from state agency records, company statements, public and commercial datasets and satellite captures, each kept with its date and source. The bar shows documents by type.
Every quote behind this page
Grade key: A = the primary record itself (permit, filing, exhibit) · B = a dated official statement · C = news reporting. Map distances are our own measurements on OpenStreetMap and carry no grade. Allegations in lawsuits are marked as such in the quotes.
Power (14)
- CT Siting Council Facility List for Oxford lists Towantic generation, substations, transmission, solar, BESS and telecom only; no data-center docket or petition“PETITION NO. 1647 – East Point Energy, LLC petition for a declaratory ruling”State agency · Oct. 2026 · grade A
- On-site generation: 805 MW“CPV Towantic Energy Center is an 805-megawatt (MW) combined-cycle electric generating facility in Oxford, Connecticut.”Company · June 2025 · grade A
- Project type: natural gas combined-cycle electric generating facility; not a data center“CPV Towantic Energy Center is an 805-megawatt (MW) combined-cycle electric generating facility in Oxford, Connecticut.”Company · June 2025 · grade A
- 800 MW class figure in Oxford is Towantic generation: 805 MW installed / 785 MW nominal, operating since May 2018“Total Installed Capacity 805 MW”Company · June 2025 · grade A
- On-site generation: 785 MW“construction, maintenance and operation of a 785 MW dual-fuel combined cycle electric generating facility”State agency · May 2015 · grade A
- Campus name: Project Oxford Hyperscale Data Center Campus“This project includes the development of a six-phase, 1.8-million-SF hyperscale data center campus offering 234 MW of power”Company · Oct. 2026 · grade B
- Project status: PLANNED / PRE-CONSTRUCTION, NOT IN SERVICE; OPERATOR UNIDENTIFIED: a powered-land listing for the site (519 acres) is marked sold April 27, 2026, and the project engineer publishes a full campus design (six p“The project served as a 'design guideline' for our technology client, creating a standardized design that can be adapted on other sites”Company · Oct. 2026 · grade B
- Stated campus size: 234 MW“a six-phase, 1.8-million-SF hyperscale data center campus offering 234 MW of power”Company · Oct. 2026 · grade B
- Building sq ft: 1800000 sq ft“a six-phase, 1.8-million-SF hyperscale data center campus offering 234 MW of power”Company · Oct. 2026 · grade B
- Site acreage: 230 acres“Located on more than 230+ acres, the campus also includes an administration building, four core network rooms, and a 40-acre electrical substation”Company · Oct. 2026 · grade B
- Substation site acreage: 40 acres“the campus also includes an administration building, four core network rooms, and a 40-acre electrical substation”Company · Oct. 2026 · grade B
- Utility: Eversource (territory; Towantic Substation area)“Segment 1 of the Project ROW (for the 1142, 1403, 1319, and 1619 Lines) extends south for approximately 2.1 miles from Towantic Substation to Christian Street Junction”State agency · Jan. 2026 · grade B
- Eversource is rebuilding transmission lines out of Towantic Substation through Oxford under CT Siting Council Petition No. 1640 (draft staff report, Jan 2025) - area grid investment in the campus's substation area; the p“There would be no interruption to the operation of CPV Towantic Energy Center during Project construction”State agency · Jan. 2025 · grade B
- The CPV Towantic Energy Center, an operating 842 MW gas-fired plant, sits about 2.3 km east of the campus point. It is a merchant plant, NOT campus on-site generation; no document ties its output to the campus.“CPV Towantic energy center is an operating power station of at least 842-megawatts (MW) in Oxford”Dataset · Oct. 2026 · grade C
Permits and government (3)
- Declaratory ruling: approved May 26, 2016“new 115-kV Towantic Switching Station to be located adjacent to the Towantic Generating Station on Woodruff Hill Road, Oxford”State agency · Oct. 2026 · grade A
- Certificate of Environmental Compatibility and Public Need: granted“granted a Certificate of Environmental Compatibility and Public Need to Towantic Energy, LLC”State agency · May 2015 · grade A
- Certificate modification: granted“construction, maintenance and operation of a 785 MW dual-fuel combined cycle electric generating facility”State agency · May 2015 · grade A
Site and other (6)
- Project Oxford as a data-center codename does not point to Oxford CT; other Oxford data-center uses are Microsoft Oxford Data Center in Quincy WA and Microsoft Project Oxford cognitive services, plus a legacy 2009 01 Dat“MICROSOFT OXFORD DATA CENTER”State agency · Oct. 2026 · grade A
- Status: operating“Commercial Operations May 2018”Company · June 2025 · grade A
- Site location: north of Prokop Road and Towantic Hill Road intersection, Oxford, CT“located north of the Prokop Road and Towantic Hill Road intersection in the Town of Oxford, Connecticut.”State agency · May 2015 · grade A
- Developer: CPV Towantic, LLC“CPV Towantic, LLC Motion to Reopen and Modify the June 23, 1999 Certificate”State agency · May 2015 · grade A
- Phase count: 6 phases“This project includes the development of a six-phase, 1.8-million-SF hyperscale data center campus”Company · Oct. 2026 · grade B
- County code: 09009Measured on OpenStreetMap map data.
Imagery and records: Satellite imagery: Sentinel-2 (ESA Copernicus).