KYIV, Ukraine — Europe’s largest nuclear plant was knocked off Ukraine’s electricity grid Monday, its last transmission line disconnected because of a fire caused by shelling, the facility’s operator and the U.N. atomic watchdog said.
The International Atomic Energy Agency said it was informed Monday by Ukrainian authorities that the reserve line “was deliberately disconnected in order to extinguish a fire.”
“The line itself is not damaged, and it will be reconnected once the fire is extinguished,” the IAEA said.
In the meantime, the plant’s only remaining operational reactor would “generate the power the plant needs for its safety and other functions,” the agency said. Mycle Schneider, an independent analyst in Canada on nuclear energy, said that would mean the plant was likely functioning in “island mode,” producing electricity just for its own operations.
“Island mode is a very shaky, unstable, and unreliable way to provide continuous power supply to a nuclear plant,” Schneider said.
The incident fueled fears of a potential nuclear disaster at Zaporizhzhia, one of the 10 biggest nuclear plants in the world. Experts say its reactors are designed to protect against natural disasters and incidents such as aircraft crashes, but leaders around the world have appealed for it to be spared.
Russia and Ukraine accuse each other of attacking the plant, which the Kremlin’s forces have held since early March. The plant’s Ukrainian staff continue to operate it.
The plant’s operator, Energoatom, said Monday that Russian forces have kept up “intensive shelling” around Zaporizhzhia in recent days despite the warnings. The Russian military accused Ukrainian forces of staging “provocations” there, including sending a drone, which was intercepted, and shelling the adjacent city of Enerhodar.