Ferosplavna-1 330 kV line
ZNPP's sole remaining backup power line; reconnected 5 March under the fifth IAEA ceasefire; sole feed as of 10 April 2026.
Last refreshed: 11 April 2026 · Appears in 1 active topic
The last power line at ZNPP runs along a frontline; one drone hit could push Europe's biggest nuclear plant to emergency generators.
Latest on Ferosplavna-1 330 kV line
- What is the Ferosplavna power line at the Zaporizhzhia nuclear plant?
- Ferosplavna-1 is ZNPP's 330 kV backup power line, reconnected on 5 March 2026 under the fifth IAEA Ceasefire. Since 24 March it has been the plant's only external power source after the main 750 kV Dniprovska line was disconnected.Source: IAEA Update 346
- What happens if Zaporizhzhia nuclear plant loses all external power?
- If Ferosplavna-1 is lost, all six ZNPP reactor units would fall to emergency diesel generators with finite fuel. Rosatom has confirmed no units can be restarted while fighting continues. This is the scenario the IAEA has been warning about since the 2022 occupation.Source: IAEA/Rosatom
Background
The 330 kV Ferosplavna-1 line is the sole remaining backup external power feed for the Zaporizhzhia Nuclear Power Plant (ZNPP). It was reconnected on 5 March 2026 under the fifth IAEA-brokered local Ceasefire, restoring partial power redundancy after previous lines were lost. Since the 750 kV Dniprovska main line was disconnected on 24 March, Ferosplavna-1 has been ZNPP's only external power source.
As of IAEA Update 346 on 10 April, ZNPP has operated on Ferosplavna-1 alone for 18 days, the longest single-line stretch since the March restoration. If the Ferosplavna-1 line is lost, all six reactor units would fall back to emergency diesel generators. Rosatom has confirmed none can be restarted while fighting continues, and diesel fuel is finite.
The line's route runs near the Dnipro River frontline, making it physically exposed to the same artillery, drone, and incidental damage that severed the Dniprovska line. The IAEA has been attempting to broker a sixth local Ceasefire to repair the Dniprovska line; until that is agreed, Ferosplavna-1 is the only line standing between ZNPP and a generator-only operating state at Europe's largest nuclear power plant.
