Jamie Dettmer is opinion editor and a foreign affairs columnist at POLITICO Europe. As Russia began its full-scale invasion of Ukraine nearly four years ago, Volodymyr Kudrytskyi, then head of Ukraine’s state-owned national power company Ukrenergo, was scrambling to keep the lights on . Somehow, he succeeded and continued to do so every year, earning the respect of energy executives worldwide by ensuring the country was able to withstand Russian missile and drone strikes on its power grid and