Kansai Electric starts Japan's first nuclear PPAs as AI-driven data centers strain grid

Kansai Electric Power's move marks the first nuclear PPA in Japan, a direct response to rising electricity demand from AI and data centers. The utility says applications from data center operators are flooding in, and connecting to the transmission grid can now take as long as 10 years. Nuclear PPAs are thus positioned as a way for customers to secure long-term power supply despite those delays, while the grid backlog itself remains a bottleneck for AI-driven growth in Japan.

The article does not detail pricing, contract terms, or which customers signed on, leaving open questions about how widely the model will spread. But the combination of first-of-its-kind nuclear contracts and 10-year connection waits signals that power availability, not just chip supply, is becoming a constraint on AI infrastructure expansion in Japan.