In recent weeks, Russia has renewed its offensive, striking Ukraine's power grid with an intensity not seen in more than two years of war.
Now instead of scattered, the attacks have become more concentrated, CNN reported.
The turning point came in late March, said Oleksandr Kharchenko, director of the Kyiv-based Energy Industry Research Center (EIRC).
On that day, Russia launched one of the largest missile and drone attacks on Ukraine's energy infrastructure, hitting at least 10 regions of the country and leaving more than 1 million households briefly without electricity.
"On March 22, Russia began implementing its new attack strategy," Kharchenko said. "The new strategy consists of massive missile strikes against specific targets, when a large number of missiles and drones are simultaneously focused on a very limited number of targets."
"Their tactics have changed - unfortunately not for the better for us. In such a short period of time - in a few weeks of these massive Russian attacks - almost all of our year-long efforts to rebuild and repair were destroyed in a few days," Ukrainian Deputy Energy Minister Svitlana Hrynchuk said.
Russia has since trashed Ukrainian power plants across the country, and on Thursday completely destroyed the Tripilska TPP, the largest power plant in the Kyiv region. DTEK, Ukraine's largest private energy company, also said Thursday that Russia had caused "serious damage" to two of its power plants and that about 80 percent of its power generation facilities were destroyed by Russian strikes.
