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Microsoft's AI capex is now a power-purchase story as much as a GPU story

Azure's constraint is increasingly measured in megawatts.

James WhitakerTechnology Editor
Cloud infrastructure hallway of servers

Cloud infrastructure hallway of servers

REDMOND, Wash. — Microsoft's latest capacity plan reads like an energy filing. Alongside GPU purchase commitments, the company is stacking power-purchase agreements and behind-the-meter deals that would have looked exotic on a software-company slide five years ago.

Azure customers already feel the result as region-level GPU scarcity. Product managers can ship a model. They cannot ship a region that does not have a substation date.

Investors who still treat Microsoft as a high-margin software residual are being asked to underwrite an industrial build. The stock can handle that if utilization arrives. It cannot handle stranded campuses.

James Whitaker

Technology Editor

Reports on semiconductors, cloud infrastructure, and the industrial politics of AI.