The International Atomic Energy Agency reports that the Zaporizhzhia Nuclear Power Plant in Ukraine has lost its external electricity supply for an unknown reason. The plant, Europe's largest nuclear facility, relies on external power to cool its shutdown reactors.
The Zaporizhzhia Nuclear Power Plant (ZNPP) has lost its connection to the external power grid, the International Atomic Energy Agency (IAEA) reported on Saturday. The cause of the outage is not yet known, according to the IAEA. The plant, located in Russian-controlled southeastern Ukraine, has been in shutdown mode since the early stages of the war, but its six reactors still require continuous cooling, which depends on a steady external electricity supply. Without it, engineers must rely on emergency diesel generators, a finite backup.
The ZNPP has repeatedly faced disruptions to its power supply over the past year. As The Zioneer has reported, the plant was reconnected to the grid in June 2026 after a localized ceasefire brokered by the IAEA allowed repairs to a damaged transmission line. The 750 kV main line had been severed for months, leaving the plant dependent on a single 330 kV backup line. During that period, the backup line was interrupted multiple times, forcing emergency diesel generator activations.
The IAEA's Director General Rafael Grossi has mediated several local ceasefires around the plant to facilitate essential repairs. The latest outage raises renewed concerns about nuclear safety in a conflict zone, though the IAEA has not yet indicated whether it will seek a new ceasefire to enable repairs.
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