During the night, Moscow's missile and drone strikes have led to electricity outages in large parts of the capital city, Kyiv.
Nine people were hurt while residents in eastern districts were plunged into darkness and dealt with problems to drinking water, according to municipal leaders.
At the same time, a minor was fatally injured in a separate Russian drone strike in the southeastern region in the country's south-east, according to local officials.
Moscow has escalated assaults on power infrastructure over the last fortnight, while Ukrainian leadership has demanded "real steps" from partner nations to exert influence on Russia.
"The necessity is not symbolic gestures but strong steps - from the US, European nations and the Group of Seven - in providing air defence systems and applying restrictions," was stated in a public message.
He said that 450 drones and several dozen missiles attacked the country's power systems, characterizing such strikes as "cynical and calculated" and against "critical infrastructure" as temperatures become colder.
Energy officials said Moscow was "launching a major assault" and maintenance teams were striving to repair systems.
A series of attacks hit energy infrastructure and civilian homes in Kyiv.
Several of the people hurt in the attacks on the capital have been transported for medical care, according to municipal representatives.
Area administrators said the urban area came under heavy assaults throughout the evening. A minor lost their life and several individuals were injured.
The assaults follow periods of air raids in the area, portions of which are occupied by Russian forces.
The entire country is under warning for sophisticated projectile assaults, which are tougher to identify.
National leaders told journalists that Russia was intentionally trying to destroy the national power system, with assaults already affecting energy systems.
Officials stated technical personnel and authorities were preparing for further attacks.
