Nuclear Output Cut in Ukraine After Critical Substation Hit by Russian Attack, IAEA Confirms

Ukraine’s Khmelnytskyi and Rivne nuclear power plants have reduced their output after a key electrical substation was damaged during a Russian airstrike on the night of November 7, according to IAEA Director General Rafael Grossi on November 17.

The substation is considered a crucial component of Ukraine’s power grid, responsible for transforming and regulating voltage to ensure reliable electricity transmission.

For nuclear facilities, such infrastructure is essential to maintain external power supplies needed for critical safety and cooling systems.

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Grossi highlighted that the integrity of these substations is “vital for nuclear safety and security.”

The strike disconnected both plants from one of their two 750 kV transmission lines. As a result, Ukraine’s energy operator ordered a reduction in power generation at several reactors.

While one affected line has since been restored, the other remains offline. Three reactors continue to operate at limited capacity.

Previously, it was reported that Andrii Sybiha, Ukraine’s foreign minister, called for an urgent meeting of the International Atomic Energy Agency (IAEA) Board of Governors after the attacks impacted substations connected to both the Khmelnytskyi and Rivne nuclear power plants.

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