Worldwide data center capital spending is projected to surpass $3 trillion by 2030 as hyperscalers, sovereign AI programs, and specialized cloud providers expand infrastructure to support growing AI workloads, according to a new report from Dell’Oro Group. The research firm said its 2030 capex outlook has nearly doubled since its January 2026 forecast, reflecting higher hyperscaler spending guidance, increased estimates for global data center power capacity, and rising commodity costs.  However, the cost of accelerators alone does not reflect the full expense of AI infrastructure. Operators also need servers to host the chips, specialized networking for AI clusters, and storage to support training and inference. Data Center Capex Forecast to Hit $3 Trillion