Ukrainian military analyst Oleh Zhdanov said the Russians are striking civilian infrastructure, because they can't efficiently target Ukrainian military assets.
"The Russians lack data about the location of Ukrainian troops and weapons, so they are targeting civilian infrastructure and using the same old methods of attacking civilians to sow fear and panic in the society," he said. "Ukraine has survived the winter and Russia's strikes on the energy system in the spring hardly make any sense."
Power and water were restored in Kyiv, said Serhii Popko, the head of the city's military administration. Popko said that about 30% of consumers in the capital remained without heating and that repair work was ongoing.
The electricity supply was restored to more than nine in 10 consumers in Ukraine's northeastern Kharkiv region, local officials said, while power was also restored to a third of consumers in Ukraine's southern Zaporizhzhia region.
The Russian onslaught was the largest such attack in three weeks, deploying more than 80 Russian missiles and exploding drones.
The barrage, which also damaged residential buildings, killed six people and left hundreds of thousands without heat or running water. The salvo was noteworthy for the range of munitions the Kremlin's forces used, including hypersonic Kinzhal cruise missiles that are among the most sophisticated weapons in Russian's arsenal.
Even so, the bombardments on energy infrastructure that gathered pace last fall have become less frequent.
