Alteo has commissioned a new battery energy storage system, further strengthening its role in grid flexibility and energy balancing. The latest unit, located in Győr, has a capacity of 20 MWh and operates alongside an existing gas-fired power plant, enabling more efficient use of available grid connection capacity through integration with existing infrastructure.
The project forms part of a wider investment cycle supported by Hungary’s Recovery and Resilience Plan, under which several Alteo subsidiaries secured funding for battery storage developments. One of them, Alteo-Therm, implemented the Győr facility with a total investment of approximately €7.4 million, including €2.4 million in non-repayable grants.
The storage system has been constructed next to a site housing multiple gas engines, allowing it to leverage existing operational infrastructure and optimize performance. In addition to supporting electricity supply and grid stability, the subsidiary also provides district heating services in several cities, contributing to a more resilient and diversified energy system.
With this latest addition, Alteo’s total aggregated storage capacity—managed through its centralized control system—has reached 90 MW. This expansion follows a series of recent developments, including a 50 MW system commissioned earlier this year in Győr and a 10 MW installation launched shortly afterward in Bana. Through continued investment in storage technologies, the company is positioning itself to enhance network reliability while supporting the integration of an increasing share of renewable energy.
