The Zaporizhia NPP (ZNPP) has restored external power supply from the Dneprovskaya high-voltage line, the ZNPP press service reported on its Telegram channel. “The 750 kV Dneprovskaya line has been put into operation. The radiation background at the site and in the monitoring area is normal and does not exceed natural values,” the report said.
On July 4, ZNPP temporarily switched to diesel-generator power after the Dneprovskaya high-voltage line was disconnected. It was reported that the reasons for the shutdown were being investigated. The Ferrosplavnaya-1 backup line (330 kV) has also been out of service since May 2024. The station’s electricity supply comes from the right bank of the Dnieper River, which is controlled by Ukraine.
According to ZNPP Plant Director Yuriy Chernichuk, the emergency diesel generators have now been stopped and put back on standby, and there are no violations in the plant’s operation.
According to the International Atomic Energy Agency (IAEA) this was the ninth time the ZNPP suffered a complete loss of off-site power since the conflict began in February 2022, and the first since. The IAEA team based at the site reported that 18 emergency diesel generators had immediately started operating to generate the electricity the plant needs to cool the reactors and the used fuel pools. The plant has diesel fuel for at least 10 days on-site with arrangements in place to secure further supplies.
“What was once virtually unimaginable – that a major nuclear power plant would repeatedly lose all of its external power connections – has unfortunately become a common occurrence at the Zaporizhia Nuclear Power Plant,” said IAEA Director General Rafael Grossi. “Our team on the ground will continue to follow the situation very closely and report on further developments there.”
