20 MW / 40 MWh BESS Design & EPC Contractor

VOLTAGE Group: Utility-Scale BESS Contractor Delivers 20 MW / 40 MWh in Ukraine

About the project

Ukraine has taken an important step towards energy independence with the launch of the country’s largest Battery Energy Storage System (BESS) complex, totaling 200 MW of power and 400 MWh of capacity. The project was implemented in partnership with DTEK and Fluence Energy. This is the first facility of such scale in Ukraine, setting a new benchmark for the industry. VOLTAGE Group acted as the key contractor for one of the sites, delivering 20 MW of power and 40 MWh of capacity. All works were completed in a record 4 months — right on schedule before the start of the autumn-winter period.

Location: Ukraine

Client: DTEK Renewables

Status: Completed

Services Provided:

Solar Power Plants

Engineering and Construction

Services

Challenge

Integration of the first large-scale BESS in Ukraine into the existing grid under strict regulatory, technical, and operational requirements.
Modernization of grid infrastructure to strengthen energy security, ensure compatibility, and increase system flexibility.
Implementation of frequency balancing and reserve functions. With the ability to accumulate and release energy in critical moments, the system enhances the resilience and reliability of the power network.

20 MW BESS Project | VOLTAGE Group in Ukraine

Services provided

Integration of the first large-scale BESS in Ukraine into the existing grid under strict regulatory, technical, and operational requirements.
Modernization of grid infrastructure to strengthen energy security, ensure compatibility, and increase system flexibility.
Implementation of frequency balancing and reserve functions. With the ability to accumulate and release energy in critical moments, the system enhances the resilience and reliability of the power network.

Outcome

The project was successfully completed within tight deadlines. The new energy complex now operates reliably, improving the stability, efficiency, and flexibility of Ukraine’s power system. VOLTAGE Group has once again demonstrated its high level of engineering expertise and practical experience in delivering large-scale innovative energy projects, making a significant contribution to the restoration and modernization of the country’s energy infrastructure.