The Chornobyl Nuclear Power Plant's new safe confinement suffered a blackout due to a Russian attack on energy infrastructure in the Kyiv region, specifically impacting objects in Slavutych, as reported on October 1st, 2025, between 5:07 PM and 6:06 PM UTC. The "new safe confinement," which isolates the destroyed fourth Chernobyl unit and prevents radioactive material release, was affected by a voltage jump that resulted in a loss of power. Specialists are currently working to restore the electricity supply. The Ministry of Energy confirmed the "hostile firing" of energy objects in Slavutych, leading to the emergency situation at the Chernobyl NPP. This incident occurred amidst broader air raid alerts and drone activity reported across Ukraine, including in Dnipro and Zaporizhzhia, as detailed in previous reports. The blackout at the Chornobyl site raises concerns about the integrity of the containment structure, which is designed to prevent radioactive material from entering the environment. Previous reports from October 1st, 2025, indicated significant power disruptions in Dnipro and Zaporizhzhia following a flash, with air raid alerts issued for multiple Ukrainian regions. Separately, the International Atomic Energy Agency (IAEA) had warned on the same day that the Zaporizhzhia Nuclear Power Plant was at risk due to a fuel shortage for its backup generators. Investigations into the Russian attack on energy infrastructure are ongoing, with specialists actively engaged in restoring power to the Chornobyl NPP's critical containment facility.
