Overview
- Ukrenergo ordered 8–16-hour outages across most regions on Sunday and announced further planned shutoffs on Monday to stabilize the network.
- Ukrainian authorities said Russia launched about 458 drones and 45 missiles in the major wave, with air defenses downing hundreds.
- Centrenergo reported the heaviest hits on its thermal plants since the war, saying its electricity production had temporarily fallen to zero.
- Kyiv accused Russia of attacking substations that supply the Khmelnytskyi and Rivne nuclear plants and called for IAEA attention to nuclear-safety risks.
- Ukrainian strikes on Russian border regions damaged energy infrastructure, with governors in Belgorod and Voronezh reporting temporary power and heat outages affecting tens of thousands.