Situation at Ukrainian nuclear plants worrying as shelling and power cuts threaten containment

The exterior of a nuclear power plant

Source: © AFP/Getty Images

Back-up diesel generators have been needed to maintain cooling at plants across the country

Ukraine’s four operational nuclear power plants all have access to the national grid again following a complete loss of off-site power last week. It was the first time that all the plants suffered a loss of external power at the same time since the conflict began nine months ago. They relied on diesel generators for back-up electricity.

‘The complete and simultaneous loss of off-site power for Ukraine’s nuclear power plants shows that the situation for nuclear safety and security in the country is become increasingly precarious, challenging and potentially dangerous,’ said Rafael Mariano Grossi, director general of the International Atomic Energy Agency (IAEA). ‘It is extremely concerning. The situation further underlines the need for stepped-up action to protect the plants and prevent the danger of a serious nuclear accident.’