Japan’s nuclear revival hit another snag. (Bloomberg)
Tepco is shutting down its No. 6 reactor at the Kashiwazaki Kariwa plant—the world’s largest nuclear power plant—just one day after restarting it, following the discovery of a defect in the control rod monitoring system.
Why it matters: The restart was intended to be a turning point for Japan's energy policy, signaling a full return to nuclear power. Instead, it highlights the technical and reputational fragility still haunting the sector.