The interim head of Ukraine’s state grid operator Ukrenergo, Oleksiy Brekht, said on Oct. 29 that the country may be facing its most challenging winter since the start of Russia’s full-scale invasion, as Ukraine prepares for more Russian attacks against energy infrastructure. “The winter will be the hardest of the previous three years,” Brekht told Suspilne in an excerpt of an interview published Oct. 29. Brekht said that if Russia continues its onslaught of attacks against critical energy infrastructure as it did last winter, then Ukrainians may face up to eight hours of power outages on the …