At least 47 large data center projects in the United States were delayed, withdrawn, or blocked in 2026, according to RegLayer data reported by the Financial Times. Bernstein analysts say only about 35% of the planned US data center pipeline is credible, a sign that the AI infrastructure boom is hitting real-world friction.
In a separate move, Microsoft canceled its deal with Nscale to serve as anchor tenant and rent 23,000 Nvidia AI chips at a planned data center in Essex, UK. The site faced repeated delays, per The Telegraph, adding to questions about how fast AI capacity can actually come online.
AI data center delays in 2026: what the numbers show
The RegLayer count covers 47+ large projects across the US that slipped, were pulled, or were blocked outright. That figure captures a year of local opposition, power constraints, and financing scrutiny that is now visibly slowing announced capacity.
Bernstein's estimate is even more sobering for planners: roughly one-third of the US pipeline is credible. The gap between announced megawatts and deliverable megawatts matters for AI companies that have already signed compute contracts and for utilities that must plan generation years ahead.
- 47+ large US data center projects delayed, withdrawn, or blocked in 2026 (RegLayer, via Financial Times)
- ~35% of the planned US data center pipeline is credible, per Bernstein
- Microsoft canceled its Nscale anchor-tenant deal in Essex, UK, covering 23,000 Nvidia AI chips
