KYIV – A Russian missile attack pounded power facilities in the centre and west of Ukraine on April 27, mounting pressure on the ailing energy system, even as Ukraine faces a shortage of air defences despite a breakthrough in American military aid.

The strike, using ballistic missiles and cruise missiles fired by Russian strategic bombers based in the Arctic Circle, was the fourth large-scale aerial assault targeting the power system since March 22.

“The enemy again massively shelled Ukrainian energy facilities,” DTEK, Ukraine’s largest private energy company, said in a statement.

It said its four thermal power plants were “severely damaged”.

Rescuers battled to put out massive fires at several energy facilities in the western regions of Lviv and Ivano-Frankivsk, which border Nato members Poland and Romania.

In President Volodymyr Zelensky’s home town of Kryvyi Rih, the supply of running water was disrupted after strikes on energy facilities in the central Dnipropetrovsk region.

“Unfortunately, we could not avoid the consequences. Energy facilities in Dnipropetrovsk and Kryvyi Rih regions were damaged; fires broke out,” Governor Serhiy Lysak said.

Ukrainian air defences were able to bring down 21 of the 34 incoming missiles, the commander of the air force said in a statement.

None of the hit facilities were identified by name, part of what the authorities say is an essential security measure to prevent Russia quickly assessing the impact of its strikes.

Russia denies targeting civilians during its air attacks, but says the Ukrainian energy system is a legitimate military target.

The Ukrainian authorities reported that one energy worker was hurt.

In the north-eastern city of Kharkiv, which has been heavily bombed in recent weeks, a missile struck a hospital holding 60 patients overnight, injuring a woman and damaging the building, nearby water pipes and power lines.

Ukraine, which has tried to take the fight back to Russia in recent months using long-range drones, attacked the Ilsky and Slavyansk oil refineries in Russia’s Krasnodar region, a Ukrainian intelligence source told Reuters.

The drone strike conducted by Security Service of Ukraine caused fires at the facilities, the source said. Ukrainian drones also attacked Russia’s Kushchevsk military airfield in the same southern region.

The Slavyansk oil refinery was forced to suspend some operations after being damaged in the attack, Russian state news agency Tass cited an executive overseeing the plant as saying.

‘We have to help’

Ukraine has lost about 80 per cent of its thermal generation and about 35 per cent of its hydropower capacity, officials said. Its energy system was already weakened by a Russian air campaign in the first winter of the war that Russia launched in February 2022.

Although the core of the energy system comes from nuclear power, that lost capacity serves a balancing function in the grid and its loss could be a big problem when consumption rises later in 2024, officials say.

Rolling blackouts have been introduced in several regions, but the full impact of the attacks has not been felt because consumption, which is at its highest in winter and the peak of summer, is at a seasonal low due to the mild weather.

There were no planned blackouts for now in the Lviv region, which lies some 900km from the eastern front, but the governor there urged residents to cut down on electricity use, especially during the evening hours of peak consumption.

“It’s difficult for the energy system to maintain the production and consumption balance. We have to help,” he said.

Mr Maxim Timchenko, the chief executive of DTEK, said: “Last night’s attacks underline the continued urgent need for Ukraine’s allies to provide stronger air defence systems.”

The United States approved a major aid package for Ukraine this week, overcoming a deadlock in Congress that dragged on for six months and saw Kyiv’s weapon stocks become depleted.

On April 26, the Pentagon announced that it would buy US$6 billion (S$8.2 billion) worth of new weapons for Ukraine, including interceptors for the Patriot air defence system. REUTERS