What happened

Ukraine's transmission operator Ukrenergo reported power outages affecting consumers in Kyiv city and the Kyiv, Donetsk, Odesa, Zaporizhzhia, Dnipropetrovsk and Kharkiv oblasts after Russia's large overnight missile-and-drone barrage. Kyiv's mayor separately said parts of the Sviatoshynskyi and Solomianskyi districts lost electricity while crews investigated the immediate cause. Emergency restoration work began wherever security conditions allowed. Neither Ukrenergo nor the Ministry of Energy identified the individual substations, generating units or transmission lines damaged across the seven regions, or published an aggregate customer count, megawatt loss or complete restoration time. This is therefore an aggregate grid-cascade marker rather than an asserted strike location. The Zaporizhzhia Nuclear Power Plant's separate loss of external power during the same period is recorded in the nuclear-event dataset.

When cited sources give different casualty, damage or spill figures for this event, they’re reported side by side above rather than merged into one number. See how confidence levels work.