DTEK has commissioned 200 MW of energy storage systems

DTEK Group, in partnership with Fluence, has energised Ukraine’s largest battery-based energy storage project with a total capacity of 200 MW.

Six new battery storage systems of varying capacities – from 20 to 50 MW each – have been connected by DTEK to the power grid in the Kyiv and Dnipropetrovsk regions.

Collectively, they have the capacity to store 400 MWh of electricity – enough to power 600,000 Ukrainian homes for two hours.

The construction of the project was completed in six months, from March to August 2025, which is significantly faster than the industry average for projects of such complexity. This was due to the urgent need for the project to become operational ahead of the winter season.

Total investment in the project by DTEK amounts to €125 million.

"This is a historic step for the Ukrainian energy system and will shape its development for years to come. We have implemented it together with Fluence, a global leader in energy storage. In cooperation with our American partners, we are integrating the latest technologies to make Ukraine's energy system more reliable and sustainable," said DTEK CEO Maxim Timchenko.

“We are honored to collaborate with DTEK on this landmark energy storage project. The exceptional determination and effectiveness demonstrated by DTEK in bringing this forward is truly inspiring. This achievement is a beacon of resilience and a symbol of what can be achieved through strong international cooperation. Even in these very challenging times, innovation and partnership can light the way toward greater energy security. Together, we are contributing to a stronger, more resilient, and decentralized energy system that will support Ukraine’s long-term stability,” said Fluence CEO Julian Nebreda.