The announcement comes as Ukraine’s energy ministry has stepped up imports of electricity from European countries and imposed strict rationing due to Russian attacks that have halved Ukraine’s electricity generation capacity, compared to one year ago.

The donated generators are from Sweden’s power grid authority, Svenska Kraftnät, and were scheduled to be replaced this year.

According to a government spokesman, the diesel-powered generators had capacities of between 40 and 250 kVA (kilovolt-amperes).

“The generators will for instance be able to supply a hospital with electricity or be used within the power grid to better handle outages,” energy minister Ebba Busch said in a statement.

Several cities across Ukraine were recording historic scorching temperatures this week and Ukraine’s energy ministry said Wednesday that with temperatures at their “maximum”, there would be rolling power outages across the country.

Electricity consumption is “also expected to reach a record level which significantly exceeds the capacity of Ukrainian power plants”, the ministry explained in a statement.

Last month, Kyiv urged officials to turn off air conditioners in government buildings and called on regional authorities to limit street lighting to ease pressure on the grid.