Japan’s Tepco delays Kashiwazaki-Kariwa nuclear restart after alarm glitch

South China Morning PostCenter-RightEN 1 min read 100% complete by ReutersJanuary 19, 2026 at 05:04 AM

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Tokyo Electric Power (Tepco) is delaying the planned restart of its Kashiwazaki-Kariwa nuclear power plant in Japan, initially scheduled for Tuesday, due to an alarm malfunction during equipment testing. This restart of Unit No. 6 would have been Tepco's first since the 2011 Fukushima disaster. The company is examining the impact of the malfunction, with a new restart date expected within days. Tepco aims to resume commercial operations of reactor No. 6, with a capacity of 1.36 GW, on February 26. The Kashiwazaki-Kariwa plant has a total capacity of 8.2 gigawatts, and the restart is part of Japan's effort to enhance energy security and reduce reliance on fossil fuel imports.

Key Entities & Roles

Key Player Opposition Context

NHK ×260% 2011 Tsunami 60% Fukushima Daiichi 70% Japan ×280% Kashiwazaki-Kariwa ×485% Tokyo Electric Power (Tepco) ×590%

Keywords

nuclear power plant 100% restart delay 90% alarm malfunction 80% tepco 70% kashiwazaki-kariwa 70% reactor restart 60% fukushima daiichi 50% energy security 50% equipment testing 40%