DTEK, Ukraine’s private energy company, has selected Fluence Energy B.V., a subsidiary of Fluence Energy, a global company delivering intelligent energy storage, operational services, and asset optimization software, to supply Ukraine’s 200 MW battery-based energy storage portfolio of six plants worth $143.50 million.
The project will help enhance the country’s energy independence, stabilize power supply and accelerate its transition to renewable energy.
Fluence and DTEK (through its subsidiary DTEK Renewables) plan to complete the project by October 2025, for the systems to be ready before the 2025/26 winter season to strengthen the Ukrainian power grid against outages. The project is an important part of DTEK’s FightforLight campaign, which arranges for power supply to Ukrainians under the extreme condition of war.
The energy storage plants will be located at multiple sites across Ukraine, with capacities ranging from 20 MW to 50 MW. Together, they will store up to 400 MWh of electricity – enough to supply two hours of power to 600,000 homes (equivalent to roughly half the households in Kyiv).
The systems will provide frequency and power balancing services to stabilize the Ukrainian power grid on behalf of Ukrainian Transmission System Operator Ukrenergo. The decentralized nature of the project will allow the power system to avoid outages and restore power system stability quickly at a local level as compared to previous methods.
The battery assets are designed to provide highly advanced stability services through their grid forming capability. The battery-based storage system, with advanced control modes, is expected to enable faster restoration of power after outages.
DTEK and Fluence teams will look after the systems’ installation, configuration, network integration and testing to ensure readiness to support Ukraine’s energy needs, after the delivery. DTEK staff will be trained by Fluence to act as certified partners for the on-site installation, commissioning, and future maintenance activities of the battery energy storage systems.
