World

Ukrainian nuclear power plant without external power for over a week

Al Jazeera · 2026-08-29

AI SUMMARY

• What happened: The Zaporizhzhia nuclear power plant in Ukraine has been without external power for over a week, relying on emergency diesel generators to maintain cooling functions for its non-operating reactors. • Why it matters: This situation raises significant safety concerns, as the plant's operation is precarious amid ongoing conflict, with the potential for catastrophic nuclear incidents if cooling systems fail. • What to watch next: The International Atomic Energy Agency (IAEA) is negotiating a local ceasefire to repair electrical lines and continues to monitor the situation closely, while the international community remains alert to developments at the facility.

**Ukrainian Nuclear Power Plant Without External Power for Over a Week**

The Zaporizhzhia nuclear power plant, located in southeastern Ukraine and currently under Russian occupation, has been without external power for more than a week, according to the International Atomic Energy Agency (IAEA). This situation has raised significant concerns regarding the safety and operational stability of the facility, which is the largest nuclear power station in Europe.

Since being occupied by Russian forces in March 2022, the plant has faced numerous challenges, including a lack of off-site power. The IAEA reported that the facility is currently relying on emergency diesel generators to maintain essential cooling functions for its six non-operating reactors. The agency emphasized the critical importance of diesel fuel in preventing potential nuclear incidents, especially during prolonged outages of external power.

IAEA Director General Rafael Grossi highlighted the urgency of the situation, stating, "The availability of diesel fuel is of paramount importance whenever a nuclear power plant loses off-site power." The plant has not received any deliveries from off-site storage facilities in approximately six months, although recent reports indicate that it was supplied with diesel from an alternate location on Thursday and Friday.

The IAEA has been actively working to negotiate a local ceasefire to facilitate repairs to the electrical lines that connect the plant to the external power grid. This effort underscores the precarious nature of the facility's operation amid ongoing conflict in the region.

Since September 2022, the Zaporizhzhia plant has not generated electricity, following Russia's full-scale invasion of Ukraine earlier that year. Despite the reactors being offline, it is crucial to keep them cool to prevent overheating and potential meltdowns. The IAEA has maintained a permanent presence at the site since its occupation, monitoring the situation closely.

Ukraine's deputy head of military law enforcement, Gyunduz Mamedov, noted that this recent blackout marks the 27th instance of the plant losing power since the onset of the invasion. The ongoing conflict has led to a highly volatile environment around the facility, with both Ukrainian and Russian forces accusing each other of conducting attacks in the vicinity.

In recent developments, the IAEA reported three drone incidents at the plant within the past week, resulting in injuries to two employees. Although the agency did not specify the origin of the drone strikes, earlier this month, a drone attack near the plant led to the death of a nuclear specialist and injuries to 17 others, with Moscow attributing the incident to Ukrainian forces.

Ukrainian officials have consistently warned that Russian military actions in and around the Zaporizhzhia plant amount to nuclear blackmail, posing a threat not only to Ukraine but also to Europe as a whole. The ongoing tensions and military activities in the area have raised alarms about the potential for catastrophic accidents.

As the situation continues to evolve, the international community remains watchful of developments at the Zaporizhzhia nuclear power plant, emphasizing the need for diplomatic efforts to ensure the safety and security of nuclear facilities in conflict zones. The IAEA's ongoing negotiations and monitoring efforts are critical components in addressing the risks associated with the plant's precarious status.

Source: Al Jazeera
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