MET Group inaugurates Hungary’s largest battery energy storage facility

Hungary’s largest operating standalone battery energy storage system (BESS) has been inaugurated: MET Group put into operation a battery electricity storage plant with a total nominal power output of 40 MW and storage capacity of 80 MWh (2-hour cycle). It is the latest example in a series of MET investments in BESS projects across Europe.

On site at the Dunamenti Power Station in Százhalombatta, MET already installed a 4 MW / 8 MWh demonstrator plant based on Tesla Megapack 2 batteries in 2022. With this latest BESS plant, MET Group and the Dunamenti Power Station are further strengthening their contribution to the energy transition in Hungary. The current storage capacity of all BESS units on site would be sufficient to supply the entire decorative and public lighting needs of Budapest for 4 hours. The supplier of the equipment is Huawei Technologies, and the project’s main contractor is Forest-Vill Ltd.

At the official inauguration ceremony, Péter Horváth, CEO of the Dunamenti Power Station, emphasised: “The application of battery energy storage systems is a key element on the road to energy transition, as they allow for increasing the penetration of new renewable sources into the power grid.”

Péter Kaderják, President of the Hungarian Battery Association said: “We must strive by all possible means to exploit Hungary’s renewable energy sources as extensively as possible, using well-established, cost-effective technologies. Therefore, the Hungarian Battery Association supports the efforts of the Hungarian energy policy, which deals with the green energy transition as a top priority.”

With its ongoing investments in BESS projects across Europe, such as the recent acquisition of the French battery storage operator and developer Comax in 2024, MET Group aims to address the increasing need for balancing technologies to support the energy transition. MET is also expanding technologically, with significant investments in co-located storage facilities that are being developed alongside solar parks in several European countries.