The largest battery energy storage system in the Central European region, with a total installed capacity of 99.8 megawatts (MW) and a storage capacity of 288.5 megawatt-hours (MWh), has been handed over in Buj, Szabolcs-Szatmár-Bereg County, NE Hungary, Forest-Vill Plc. announced on Monday.
According to the announcement, Forest-Vill carried out the design and construction work on behalf of the Portuguese-based Greenvolt Power, commissioning two independent energy storage systems equipped with BYD-manufactured batteries.
The first facility, implemented by Buj Energy Storage, has a capacity of 49.9 MW and a storage capacity of 144.3 MWh, for which the company received approximately HUF 5.6 billion in non-repayable EU funding. The second system, developed by Buj Battery, was built with the same technical parameters and also received HUF 5.6 billion in funding.
Forest-Vill was awarded the contract in December 2024, and construction lasted until May 2026. The system consists of units based on lithium-iron-phosphate battery technology, which ensures high thermal stability, enhanced safety, and a long service life.
Together, the two projects currently form the largest battery energy storage complex in the Central European region, capable of supplying power to more than 40,000 households during a single discharge cycle. The modular, container-based design enables flexible operation, while advanced monitoring and control platforms ensure continuous system diagnostics, preventive maintenance, and seamless integration with the grid, the company explained.
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