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The curious, secretive case of the Kursk II nuclear power plant’s weird data

A photo purporting to show pouring of first concrete at the Kursk II NPP, as posted on Kursk Regional Governor Alexander Khinshtein's Telegram account
A photo purporting to show pouring of first concrete at the Kursk II NPP, as posted on Kursk Regional Governor Alexander Khinshtein's Telegram account

Publish date: April 30, 2026

What Rosatom Is Hiding During the War and Why IAEA Data Do Not Match

Kursk II is one of Rosatom’s most important nuclear construction projects within Russia. Four of the most advanced and powerful units in Rosatom’s history—VVER-TOI reactors with capacities of up to 1,250 MW each—are being built there.

But this site is also the Russian nuclear power plant closest to the border with Ukraine. Likely for this reason, Rosatom is carrying out construction under conditions of limited transparency—either not publicly disclosing key construction milestones or doing so with significant delays and inconsistencies. This has led to confusion even at the level of the International Atomic Energy Agency (IAEA).

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