Hungarian energy company Alteo has brought a new 10MW / 20MWh battery energy storage system online in Bana, marking another step in the country’s transition toward a more flexible and resilient energy system.
The project, valued at HUF 2.4 billion, was supported by HUF 830 million in funding from the European Union’s Recovery and Resilience Facility (RRF).
Supporting Renewable Energy Integration
The newly commissioned battery system is connected both to Alteo’s existing wind farm in the area and to the national electricity grid.
This dual connection allows the system to store excess energy generated by renewable sources, particularly wind power, and release it when demand is higher or production drops.
Battery storage plays a critical role in balancing renewable energy, which can be intermittent due to changing weather conditions. By storing surplus energy and redistributing it later, systems like this help stabilise supply and reduce reliance on fossil fuel-based backup generation.
A Growing Role for Energy Storage
As Hungary continues to expand its renewable energy capacity, particularly in solar and wind, the need for grid flexibility has become increasingly important.
Battery storage systems are seen as a key solution, enabling energy providers to smooth out fluctuations and improve overall system efficiency.
Alteo’s investment reflects a broader trend across Europe, where energy companies are investing heavily in storage technologies to support the transition to cleaner energy sources.
EU Funding and Strategic Importance
The project received financial support from the EU’s Recovery and Resilience Facility, a major funding programme designed to support economic recovery and accelerate the green transition following the COVID-19 pandemic.
By backing projects such as battery storage, the EU aims to strengthen energy infrastructure, reduce emissions and enhance energy security across member states.
For Hungary, such investments contribute to national goals of increasing the share of renewable energy while maintaining a stable and reliable power system.
Alteo’s Expanding Energy Portfolio
Alteo is one of Hungary’s leading alternative energy companies, with a portfolio that includes renewable generation, energy trading and energy services.
The company has been actively expanding its capabilities in recent years, particularly in areas related to energy storage, decentralised generation and smart energy solutions.
The Bana project adds to its growing infrastructure base and positions the company to play a larger role in Hungary’s evolving energy market.
Enhancing Grid Stability
Beyond renewable integration, battery systems also provide ancillary services to the electricity grid, such as frequency regulation and load balancing.
These functions are becoming increasingly valuable as energy systems grow more complex and decentralised.
With the addition of the Bana facility, Alteo can contribute to maintaining grid stability while also optimising the performance of its renewable assets.
Looking Ahead
The commissioning of the 20MWh battery storage system highlights the accelerating pace of investment in energy infrastructure across Hungary.
As renewable capacity continues to expand, similar projects are expected to become more common, supporting both environmental goals and energy security.
For Alteo, the Bana facility represents not just a single investment, but part of a broader strategy to position itself at the forefront of Hungary’s energy transition — where storage, flexibility and sustainability are becoming central to the future of the power sector.
