Ukrainian energy companies are facing one of their toughest winters ever, scrambling to repair infrastructure damaged by ongoing Russian missile attacks ahead of winter and secure financial resources to keep the energy system running. Despite the risks, European companies are importing and injecting gas in storage, taking advantage of falling gas prices and Ukraine’s large available capacity. In the first interview of a three-part series, ICIS Energy expert Aura Sabadus talks to Dmytro Sakharuk, executive director of DTEK about the impact of infrastructure damages on the energy sector, the winter supply outlook and the prospect for cross-border trading.