In brief
The Ukrainian Energy Ministry reported that its nuclear power plants have been forced to reduce their output after a series of Russian attacks on energy infrastructure. The strikes caused electricity shortages in six regions and scheduled blackouts across most of the country, with particular severity in Kiev and surrounding areas. Repair crews are working around the clock to restore the power grid and return nuclear plants to normal operating levels.
Ukraine’s nuclear power plants have reduced their output after a wave of Russian attacks on the country’s energy infrastructure, the Energy Ministry said Wednesday, citing a widespread impact that left six regions without electricity and imposed scheduled blackouts across most of the country.
"The nuclear plants will gradually return to normal operating levels once energy workers repair the damaged power grid," the ministry said in a statement. The damage to the grid has forced the plants to cut generating capacity, a technical term meaning the maximum amount of electricity the plants can produce at a given time.
According to the ministry, the latest attacks have left consumers without electricity in six regions, with power shortages particularly severe in Kiev and surrounding provinces where energy infrastructure suffered heavy damage. Repair crews are working around the clock to restore a stable power supply.
The Russian strike, which targeted Ukraine’s energy sector overnight on Tuesday, involved a reported 289 drones, 17 ballistic missiles and 59 cruise missiles, according to Ukrainian President Volodymyr Zelensky. The attacks hit power plants, substations and transmission lines, disrupting the flow of electricity to residential, commercial and industrial users.
In a separate statement issued Thursday, the Russian Ministry of Defense said a night of air defence activity intercepted and destroyed 496 Ukrainian fixed‑wing unmanned aerial vehicles over various regions, as well as over the waters of the Sea of Azov and the Black Sea. The Ministry’s claim illustrates the high level of combat activity in the region, although it does not address damage to the civilian power grid.
In light of these events, the Energy Ministry emphasized that the nuclear facilities are operating within safety limits even while output is reduced. The ministry has placed additional emphasis on maintaining the integrity of cooling systems and spent fuel pools, which are critical for the safe operation of reactors. While the ministry did not detail the specific safety protocols being followed, it affirmed that all nuclear plants remain under full operational control.
Ukraine’s energy infrastructure has been a strategic target throughout the conflict, with past incidents leading to prolonged outages and emergency power sourcing. The current attacks exacerbate an already fragile energy network that has been strained by a combination of war‑time degradation and increased demand during winter months. Reports indicate that the grid’s capacity to transmit power from nuclear plants to consumer loads is now effectively limited by damaged transmission lines and substations.
Federal and regional energy agencies have begun dispatching mobile repair units to the most critical nodes of the electrical grid. In addition to routine maintenance crews, specialized teams are conducting rapid assessments of grid integrity and restoring redundancies to mitigate future disruptions. The deployment of such teams reflects a broader strategy to expedite grid restoration while preserving the safety of ongoing nuclear operations.
As Ukraine seeks to stabilize its power supply, the Energy Ministry is also coordinating with international partners to secure additional spare parts and technical support for the affected nuclear facilities. While the details of any external assistance remain unannounced, the ministry asserted that all ongoing repairs are proceeding under WHO‑recommended safety standards.
With the nuclear plants now operating at reduced capacity, Ukraine’s overall electricity generation figure has fallen, creating pressure on the national grid. The ministry’s statement confirms that the current situation will affect commercial, industrial, and residential consumers nationwide, with particular losses in already vulnerable regions.
In sum, the Ukrainian Energy Ministry’s announcement underscores that Russian attacks on energy infrastructure have forced nuclear plants to scale back production and that a concerted repair effort is underway to return grid stability and nuclear output to normal levels.
