Wedoany.com Report-Sept. 12, DTEK, a private Ukrainian utility, has commissioned the country’s largest battery energy storage project, which also ranks among the largest in Eastern Europe. The project marks a significant step in strengthening the stability of Ukraine’s power grid.

The facility has a capacity of 200 MW/400 MWh and is distributed across six sites, each ranging from 20 MW to 50 MW. The sites are located in the Kyiv and Dnipropetrovsk regions and are fully connected to the grid. DTEK invested €125 million ($146 million) to bring the project to completion.

The battery system is based on Fluence’s Gridstack solution. It is designed to provide dispatchable energy sufficient to power approximately 600,000 homes for two hours. The technology enhances flexibility for the grid by supporting frequency regulation, energy shifting, and improved reliability during peak demand periods.

DTEK emphasized that the battery project is intended to contribute to the modernization of the national power system and to support renewable integration. The storage capacity can help balance fluctuations in solar and wind power, ensuring a more reliable supply of electricity to households and businesses.

As one of the largest energy storage projects in Eastern Europe, the installation demonstrates the potential of advanced storage solutions to address regional energy challenges. The use of Fluence’s Gridstack platform highlights international cooperation in delivering modern infrastructure and leveraging proven storage technologies.

The 200 MW/400 MWh project represents a milestone for DTEK in its broader strategy to expand clean energy and digital solutions within Ukraine. The company has noted that large-scale storage plays an essential role in creating a more flexible and resilient grid.

By investing in this project, DTEK positions itself as a key player in advancing energy stability and future energy transition goals in the region. The company underlined that similar projects will be necessary to ensure reliable electricity for millions of consumers, particularly as energy demand evolves.

The energisation of the project reinforces the importance of integrating large battery systems into the grid to provide backup power, improve efficiency, and maintain stability during demand surges or supply fluctuations.