Kashiwazaki-Kariwa Nuclear Power Plant

The Kashiwazaki-Kariwa Nuclear Power Plant, operated by Tokyo Electric Power Company (Tepco), is the world's largest nuclear power plant by installed capacity. Located in Niigata province, Japan, it was shut down following the 2011 Fukushima disaster. Recently, the plant has been the subject of intense scrutiny as Japan attempts to restart its nuclear reactors. Reactor number six was restarted on Wednesday, marking the first time in roughly 14 years that the plant has been online. However, operations were suspended just hours later due to an alarm during reactor-start-up procedures. This occurred a day later than initially planned due to a prior alarm. The restart attempt is significant as Japan seeks to reduce its reliance on fossil fuels. Separately, an employee of Japan's Nuclear Regulation Authority (NRA) lost a phone containing confidential data related to the plant's security during a personal trip to China, raising concerns about potential data leaks.