切尔诺贝利核电站，恢复接入乌电网

Core Viewpoint - The Chernobyl Nuclear Power Plant has reconnected to Ukraine's unified power system after a disconnection caused by Russian attacks, and it is currently in a normal power supply state [3]. Group 1: Chernobyl Nuclear Power Plant Status - The Ukrainian Energy Ministry reported that despite a large-scale missile and drone attack by Russia on January 20, the Chernobyl Nuclear Power Plant has restored power supply to all facilities, including the new safety shield and spent nuclear fuel storage [3]. - The radiation levels in the industrial site and exclusion zone of the plant have not exceeded control values, and the plant has sufficient fuel reserves and available backup power to respond to potential future attacks [3]. - There is currently no direct threat to residents and the environment, and personnel are continuously monitoring the situation in an enhanced mode [3]. Group 2: International Atomic Energy Agency (IAEA) Response - The IAEA reported that the military actions on January 20 led to damage to several substations critical for nuclear safety in Ukraine, resulting in the Chernobyl Nuclear Power Plant losing all external power sources [4]. - The IAEA is actively monitoring the situation to assess its impact on nuclear safety [4].