IAEA Chief: Zaporizhzhia Nuclear Plant Power Supply Still Fragile After Restoration

The restoration of external power removes the immediate blackout risk, but the underlying pattern — repeated losses of off-site supply and depleted diesel reserves — is what makes this a structural safety concern rather than a one-off incident. The IAEA's warning matters because the plant's last line of defence is fuel that cannot be easily replaced while the military situation constrains resupply. Whether off-site fuel storage can be restocked, and whether the frequency of outages eases, are the open questions that will determine how long the current margin holds.