A New Dimension in Domestic Energy storage

MVM Tisza Power Plant Ltd. is implementing its latest investment in the power plant area with the help of a total of 4.185 billion forints in non-repayable European Union funding. A battery energy storage unit with a nominal capacity of 31 MW and a capacity of 62 MWh is being built at the Tiszaújváros site of the company operating the electric power plant as part of an investment of nearly HUF 10 billion, which will play an important role in achieving Hungary's climate goals and in promoting the climate neutrality goals set for 2050, according to a statement issued by the MVM Group.

The green transition and the widest possible integration of renewable energy sources occupy a key place in the MVM Group's strategic objectives, to which the investment in Tiszaújváros represents a further forward-looking contribution. The project is not only a technological innovation, but also a significant step towards sustainable development, in line with government measures supporting the green transition in Hungary. The development aims to create a state-of-the-art energy storage system that can support the balancing of weather-dependent producers and compensate for its impact on the grid, strengthen the flexibility of the electricity grid, and reduce greenhouse gas emissions.

The containerized energy storage unit, based on lithium-ion technology, will ensure reliable long-term operation while effectively integrating into the site's existing infrastructure and grid capacity. The new energy storage unit will operate alongside the existing smaller-capacity system and is in line with Hungary's Recovery and Resilience Plan measures to support the green transition. The investment brings together two state-of-the-art technologies in one location: a high-efficiency 1,000 MW combined cycle power plant and a modern chemical-based energy storage system. Although the two facilities will operate independently of each other, their common goal is to support the balancing of renewable energy sources and strengthen the flexibility and stability of the electricity system.

The development represents significant value not only from a technological point of view, but also in socio-economic terms. The construction and related services will stimulate the local economy and create jobs, while playing a key role in Hungary's successful adaptation to the challenges of the green transition. The investment also sends an important message: investing in modern energy systems creates long-term value and plays a decisive role in ensuring a clean and reliable energy supply.

The 31-MW, 62-MWh energy storage facility is expected to be completed by June 30, 2026, in Tiszaújváros, on the site of the MVM Tisza Power Plant, where all the technical and network conditions are in place for the successful implementation of the project.