The 25 largest data centers in the world
Ranked by tracked capacity. Every entry links to a sourced project page with cost, operator, and the public companies building it.
- Wonder Valley Off-Grid AI Data Center Park: 9 GW (O'Leary Digital · Municipal District of Greenview, Canada · announced)
- Stratos Hyperscale Data Center: 9 GW (O'Leary Digital · Snowville, UT · announced)
- PORTS-Pike Technology Campus: 8 GW (SB Energy (SoftBank) · Piketon, OH · under construction)
- Nexus Hubbard Campus: 7.7 GW (Nexus Data Centers · Hubbard, TX · under construction)
- Meta Hyperion: 5 GW (Meta · Holly Ridge, LA · under construction)
Ranks 6–25 (with the PDF and the public-supplier list on each entry) unlock free with an email. Method: ranked by tracked nameplate capacity (MW), campus totals where phases are disclosed together; announced projects are included and labeled; sources on every project page.
Frequently asked questions
- What is the largest data center in the world in 2026?
- Wonder Valley Off-Grid AI Data Center Park in Municipal District of Greenview, Canada, at 9 GW, operated by O'Leary Digital. It is announced. That capacity is an estimate. We modeled or inferred it, and no source states it.
- How is this ranking measured?
- By tracked nameplate capacity in megawatts, campus totals where phases are disclosed together. Announced and under-construction projects are included and labelled, power plants and cloud regions are excluded, and all 25 entries link to a project page with its sources. Each capacity carries a basis. Filed means a permit, utility filing or SEC filing states it. Stated means the developer or the press states it. Estimated means we modeled or inferred it, and those figures are marked "est.". Filed and stated figures carry the date of the newest source behind them.
- How often is this ranking updated?
- Capacity, status and new campuses refresh on a daily scrape, and a weekly sweep re-verifies rows against published sources, so the order changes as projects are announced, built and energised.