E.ON Builds New Battery Energy Storage Facility

The electricity company E.ON is building a new battery energy storage facility in Soroksár (a southern Budapest district). The site will enable the connection of new solar systems and increase security of supply.

According to the company’s statement, the storage facility will be capable of storing around six megawatt-hours (MWh) of energy generated by 350 residential solar systems. The Soroksár facility will store the large amount of energy generated by solar systems in the area, allowing customers to use it where and when it is needed. Its installation will also improve the stability of the grid and reduce potential outages due to voltage fluctuations.

The total cost of the investment is HUF 784.52 million, of which HUF 337.50 million is non-reimbursable amount from the EU's Recovery and Resilience Instrument (RRF) and from E.ON's own resources. The new energy storage facility in Soroksár will be completed by November 2025.

E.ON recalled that it built the country's first battery energy storage facility also in Soroksár, and later installed such facilities in Dúzs, Zánka and Aszófő as well.

The company adds in the statement that it will spend a record amount of almost HUF 400 billion in the coming years to develop its electricity network. The aim of these investments is to increase the amount of green energy and to enable customers to connect more renewable energy sources, including solar systems, to the grid in the coming years.