Russia is now using 20 to 25 drones in a single attack on Ukrainian energy facilities, while the overall number of strikes on the country’s power infrastructure has risen 36% compared with the first half of last year, Ukrenergo Board Chairman Vitaliy Zaichenko said.Speaking at the Decentralized Generation in Ukraine 2.0 forum, Zaichenko said Russian tactics have evolved significantly since the start of the full-scale invasion.JOIN US ON TELEGRAMFollow our coverage of the war on the @Kyivpost_official.“At the beginning of the war, Russia used three to four drones per energy facility. Today, that number has increased to 20-25,” he said, according to Ukrinform.Zaichenko added that Russian forces now carry out coordinated attacks aimed at simultaneously damaging electricity generation and transmission infrastructure.He said Ukrenergo’s direct losses have already approached Hr. 90 billion (about $2 billion).“The number of outages is increasing, especially this year – by 36% compared with the first half of last year,” Zaichenko said.Ukraine has already lost about 50% of its electricity generation capacity, with flexible generation suffering the heaviest damage.Zaichenko added that Russian attacks and the resulting emergency power restrictions have cost Ukrenergo about Hr. 4 billion (roughly $96 million) in lost revenue.“Between January and April this year, forced power restrictions reduced actual electricity consumption by approximately 6.5 billion kilowatt-hours. That is equivalent to about 1,135 days of average electricity consumption for a city the size of Kyiv,” he said.