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Ukraine's Zaporizhzhia Nuclear Power Plant says restoring second external power line is critical to nuclear safety

On September 7, the Zaporizhzhia Nuclear Power Plant stated that restoring and commissioning the second external power transmission line—the 750 kV Dniprovska line—is critical to improving the reliability of the plant's power supply and enhancing nuclear and radiation safety levels. The plant also proposed that a systematic supply of fuel for backup diesel generators needs to be ensured. The Zaporizhzhia Nuclear Power Plant stated that after the 330 kV Ferrospravnaya-1 transmission line restored external power supply, the radiation conditions at the plant and surrounding areas remained stable, within the range of natural background levels. The plant also stated that following the restoration of external power supply, the backup diesel generators have been switched to standby mode. In its statement, the plant said that the Ferrospravnaya-1...

2026-09-09

External power supply interruption at Zaporizhzhia Nuclear Power Plant has lasted for 14 days

Yashina, head of communications at the Zaporizhzhia Nuclear Power Plant, stated that the external power supply interruption at the plant has lasted for 14 days, with power currently provided by diesel generators, and that on-site personnel are still able to ensure the safe condition of the plant. According to an earlier statement from the plant, on August 20, the "Ferroalloy-1" power line was damaged, causing the external power supply interruption at the Zaporizhzhia Nuclear Power Plant. The damage site is located in an area where repair work cannot currently be carried out. After the loss of external power, the plant activated its backup power system. Fuel reserves remain available on site, but to conserve these reserves and maintain stable equipment operation, the operating mode of the diesel generators needs to be optimized. Yashina stated that the plant has been powered by diesel generators for 14 consecutive days...

2026-09-03

Zaporizhzhia Nuclear Power Plant Relies on Emergency Diesel Generators to Maintain Operations

The International Atomic Energy Agency (IAEA) recently stated that the Zaporizhzhia Nuclear Power Plant (ZNPP) has been relying on emergency diesel generators to maintain critical safety systems for over a week following the interruption of its external power supply. After inspections by the agency's on-site expert team, it was confirmed that as of the 23rd local time, the plant's diesel reserves could support approximately 10 days of operation, approaching the minimum regulatory requirement. According to the IAEA, the Zaporizhzhia Nuclear Power Plant lost its connection to the only remaining 330 kV Peresopravna-1 external transmission line starting on the 20th. Subsequently, the plant activated multiple emergency diesel generators to power critical equipment, including the six reactors and pumps related to spent fuel cooling and storage. The IAEA...

2026-08-31

Zaporizhzhia Nuclear Power Plant Loses External Power for Six Days

On August 25 local time, the Zaporizhzhia Nuclear Power Plant (ZNPP) stated that it had lost external power since August 20 and had been relying on backup diesel generators to meet on-site electricity demand for six consecutive days. The plant's existing fuel reserves can still ensure operation, but difficulties in fuel resupply have not yet significantly eased. Yevgeniya Yashina, head of communications at ZNPP, stated that plant staff are monitoring nuclear safety parameters and the operation of backup diesel generator units around the clock. She noted that fuel transportation still faces difficulties due to shelling on roads leading to the plant; to improve the efficiency of existing reserve utilization, the plant has optimized the operation of diesel generators...

2026-08-26

Investigation Underway into Cause of External Power Supply Interruption at Zaporizhzhia Nuclear Power Plant

On August 20, Chernichuk, the head of the Zaporizhzhia Nuclear Power Plant, stated that the cause of the external power supply interruption at the plant is still under investigation, with relevant experts inspecting transmission lines to identify possible fault points. Chernichuk noted that the specific cause and location of the line damage remain unclear. Experts from the plant are conducting inspections along the lines to locate the fault; according to Ukrainian sources, their experts are also carrying out related inspection work. Earlier, the Zaporizhzhia Nuclear Power Plant reported that due to the interruption of the external power supply line, the plant switched to the backup power supply system on the morning of the 20th and activated diesel generators. The report also stated that the 330 kV high-voltage transmission line "Ferroalloy-1" was disconnected from the Zaporizhzhia Nuclear Power Plant due to damage...

2026-08-21