PUBLISHED: 24 October 2026
EVENT: 23 October 2026

The IAEA confirmed on 23 October that repairs to a backup transformer near Zaporizhzhia Nuclear Power Plant had been completed under a local ceasefire. The work strengthened the connection to the Ferosplavna-1 330 kV line, the plant’s sole remaining external power supply. The main 750 kV Dniprovska line remained unavailable.

Assessment: The repair improves reliability but does not restore redundancy in external electricity supply. Continued military activity and damage to the main line sustain nuclear-safety risks.

Source: IAEA.

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Ukraine, Russia