Methodology

Sources

The backbone is Epoch AI’s AI data centers dataset (release of 6 Nov 2026, 96 sites), published under the Creative Commons Attribution 4.0 licence. Epoch AI tracks frontier AI campuses from satellite imagery, construction permits, utility filings and company disclosures, and estimates their power and compute quarter by quarter. 96 of our 116 campus files cite it, and each of those files links it in its source list.

On top of Epoch AI we read the primary record for every campus: earnings call transcripts, SEC filings, utility and public-service-commission decisions, company press releases and named press reports. The list draws on 220 distinct sources. We also add campuses beyond Epoch AI’s current coverage, among them Meta El Paso, Project Jade in Cheyenne, Fermi America’s Project Matador, Poolside’s Project Horizon, IREN Childress and Sweetwater, Applied Digital Polaris Forge 2, Reliance Jamnagar, Google Visakhapatnam, Humain Riyadh and Dammam, Deutsche Telekom’s Munich AI cloud, Lambda Kansas City, Tesla Cortex, Nscale Loughton, Mistral’s Bruyères-le-Châtel site, the Microsoft and G42 200 MW UAE expansion, Stargate India and Argentina, and Google’s Haskell County sites in Texas.

What we changed from Epoch AI’s data

We include all 96 sites, rounded coordinates to town level, split power into live and planned figures, and set company figures ahead of Epoch AI’s wherever a company publishes one. Where we use an Epoch AI number, the table marks it “est” and the campus file says “Epoch AI estimate” with its as-of date. Summaries, operator and tenant fields, status and power-source notes are our own, written from the sources listed on each file.

Live power and planned power

Live MW is power in service at a stated date: what a campus runs today. Planned MW is the largest capacity stated or projected for the campus at full build. They are different races, so each gets its own column and its own ranking: Project Rainier leads on live power, Hyperion and Project Matador lead on plans.

Each figure carries its basis. Planned figures come from the company (32 campuses), a regulatory filing (1), a press report (1) or an Epoch AI estimate (77). Live figures come from the company (5) or Epoch AI (73).

Sources mix IT power (what the servers draw) with total facility power (IT plus cooling and losses). Each campus file’s power detail says which one every number is, and when two sources disagree it gives both, with who said what and when. Vantage’s 1.4 GW of IT capacity at Shackelford County against Epoch AI’s 2 GW of facility power is a typical case.

Status

Operational (80): at least one building runs AI workloads. Under construction (30): building, nothing live yet. Planned (6): announced, with no confirmed construction or with work stalled. A campus stays operational while later buildings go up; its live MW shows how far it has come.

Tenants

A tenant is confirmed when the operator, owner or tenant names it (70 campuses). It is reported when only a press outlet or Epoch AI names it (17 campuses, plus 9 with a mix). Reported names carry a “Reported” marker and name the outlet in brackets, for example “Meta (reported by SemiAnalysis, not confirmed)” at QTS Cedar Rapids.

GPUs and chips

The GPU count is filled only when the company or a filing states it. Chip types come from the company, the press or Epoch AI, and the text says which. Musk’s 550,000-GPU figure for Colossus 2 is unaudited, so that cell stays empty and the claim sits in the power detail.

Coming next

The next batch adds Nebius Kansas City, Khazna Ajman, Firmus Tasmania and the 1.4 GW MGX, Bpifrance, Nvidia and Mistral campus near Paris, plus capex, PUE and H100-equivalent compute per campus.

Corrections

Operators, tenants and readers can send a correction with a public source to hello@aidatacenterlist.com. We update the campus and its verified date. Sponsorship is labelled, and every campus earns its data and its place in the list from its sources alone.