Hungary’s state-owned utility MVM has commissioned a new battery energy storage system at its Tiszaújváros energy complex. The installation adds 31 MW of power output and 62 MWh of storage capacity to the national electricity grid. The system uses lithium-ion technology and is made up of containerized battery units integrated with an existing storage facility on site.
According to MVM, the battery project is intended to increase grid flexibility. It is also aimed at improving the Hungarian power system’s ability to accommodate rising volumes of renewable generation, including solar and wind. The installation is designed to support short-term balancing requirements by addressing fluctuations in electricity supply and demand.
Battery investment funded through Recovery and Resilience Facility
The battery project required an investment of approximately €28 million. Financing was provided through Hungary’s Recovery and Resilience Facility. The funding package includes support from both the Hungarian government and the European Union.
MVM said around €12 million of the total is included as non-repayable EU grants. The remainder of the financing structure was not detailed beyond the involvement of national and EU support mechanisms.
Tiszaújváros expansion includes 1,000 MW combined-cycle gas plant
The battery development is part of a wider expansion strategy at the Tiszaújváros site. MVM is also advancing one of Hungary’s largest conventional generation projects alongside the storage complex. Construction of a 1,000 MW combined-cycle gas-fired power plant began in March 2026.
The planned facility will include two generating units. MVM expects it to be capable of operating with a partial hydrogen blend in its fuel mix, depending on how the fuel mix is configured for operations.
Gas project financing involves Citibank, ING, and Intesa Sanpaolo
MVM said the new gas-fired plant is intended to strengthen security of electricity supply. It is also described as providing flexible generation capacity to balance a growing share of intermittent renewable sources.
The project financing involves Citibank and ING as mandated lead arrangers. Intesa Sanpaolo is acting as facility agent for the transaction.
