External electricity was successfully restored to the Zaporizhzhia Nuclear Power Plant (ZNPP) on Saturday, June 6, ending a 15-hour total power failure.
According to an official operational update released by the International Atomic Energy Agency (IAEA) on X, the ZNPP was reconnected to the external grid on Saturday morning.
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Emergency generators engaged during critical outage
For 15 hours prior to reconnection, the station was entirely cut off from off-site electricity. During this window, the facility was forced to activate its emergency diesel generators to supply the necessary power to keep its six halted reactors safely cooled.
The IAEA disclosed that this event marks the 18th complete loss of off-site power at the ZNPP since the outbreak of Russia’s full-scale invasion of Ukraine. Analysts noted that this specific outage stands as one of the longest durations the plant has spent disconnected from the power grid, raising anxieties over backup fuel consumption.
While all six reactors currently remain in a cold shutdown state, a continuous and stable supply of electricity is legally and technically mandatory to prevent backup fuel exhaustion and avert a severe nuclear emergency.



