Hungary’s state-owned utility MVM has commissioned a new battery energy storage system at its Tiszaújváros energy complex, adding 31 MW of power output and 62 MWh of storage capacity to the national electricity grid. The installation is based on lithium-ion technology and consists of containerized battery units integrated with an existing storage facility at the site.
According to MVM, the new system will significantly enhance grid flexibility and improve the ability of the Hungarian power system to accommodate increasing volumes of renewable energy, particularly solar and wind generation. The project is designed to support short-term balancing needs and help manage fluctuations in electricity supply and demand.
The battery project required an investment of approximately €28 million, with financing provided through Hungary’s Recovery and Resilience Facility. The funding structure includes support from both the Hungarian government and the European Union, with around €12 million in non-repayable EU grants included in the package.
The development forms part of a broader expansion strategy at the Tiszaújváros site, where MVM is also advancing one of Hungary’s largest conventional generation projects. Construction of a 1,000 MW combined-cycle gas-fired power plant began in March 2026. The facility will consist of two generating units and is expected to be capable of operating with a partial hydrogen blend in its fuel mix.
MVM states that the new gas-fired plant will play a key role in strengthening security of electricity supply, while also providing the flexible generation capacity needed to balance a growing share of intermittent renewable sources. The project is being financed with the involvement of Citibank and ING as mandated lead arrangers, while Intesa Sanpaolo is acting as facility agent.
