Russia preparing for new massive attack on Ukraine's energy sites — Ukrenergo

He noted that Russians attack Ukraine's energy system almost daily, with massive strikes roughly every 10 days.

"It's very hard to predict anything now because the enemy is preparing for a new attack," he said. “This always happens; we've seen it since early fall — every 10 days, give or take, there's a massive attack on the energy system.”

Restoring balance in the energy system after such attacks is difficult, leading to emergency blackout schedules.

"As of now, there are no such schedules; limited power schedules for industry are in effect, as are hourly blackout schedules," he added. “Unfortunately, they vary widely across Ukraine — from one to three and a half queues.”

Earlier, on Christmas Eve overnight into Dec. 25, Russia attacked Ukrainian energy sites, leaving consumers without power in five regions — Chernihiv, Sumy, Dnipropetrovsk, Kharkiv and Odesa.

Ukraine's Energy Ministry said emergency restoration work continues around the clock, with hourly outages and business power limits in effect nationwide.