Almere, the Netherlands – 10 December 2025 – Alfen and HybriX Energy have signed an agreement in November for the delivery and long-term maintenance of two large-scale Battery Energy Storage System (BESS) projects in Belgium. Each project will provide 35MWh of power and 4 hours of storage capacity. The BESS systems will be installed in Geel (Project Volta) and Massenhoven (Project Franklin). Together, they represent one of the largest BESS deployments currently planned in Belgium and mark a significant investment in the country’s future electricity infrastructure.

Both systems will connect at 150kV to the Belgian transmission network  operated by Elia and will each comprise 30 battery containers of Alfen’s TheBattery Elements technology. The projects will form flexible assets capable of supporting grid-balancing needs and maximising the use of clean energy when the grid faces congestion or peaks in renewable generation. Construction is scheduled to begin in mid-2026, with commercial operation expected at the end of 2027.

The projects have been awarded under Elia’s Capacity Remuneration Mechanism (CRM) and will further enable HybriX Energy to participate across multiple energy and flexibility markets. This model allows the assets to generate value while directly contributing to the stability and decarbonisation of the Belgian energy system.

“These projects represent a major milestone for Belgium’s energy transition,” said Yves Vercammen, Country Manager Belgium. “As renewable energy generation increases, large-scale storage systems become essential to ensure that clean electricity is not wasted and can be delivered when the country needs it most. These two BESS installations will support Belgium in building a more resilient, flexible and future-proof electricity network. We are proud to partner with HybriX Energy on projects that will have a meaningful impact on the national energy landscape.”

The systems will be supplied as turnkey solutions, including installation, commissioning and grid compliance testing, followed by a long-term monitoring and service agreement. Designed for high availability and reliable long-duration operation, the installations will offer HybriX Energy strong operational performance and a scalable foundation for future growth.

“The Volta and Franklin projects mark a major step in strengthening our presence in Belgium’s rapidly accelerating battery storage sector. The contract signings reflect the confidence we have in Alfen after an extensive market assessment. We are excited to collaborate with Alfen as an experienced BESS integrator and service provider,” said Kevin Lammertyn and Stijn Heyselberghs, co-founders of HybriX Energy.

About HybriX Energy
HybriX Energy is a Belgian project developer focussed on battery energy storage projects. HybriX Energy believes that advancing the energy transition requires greater renewable energy production combined with increased flexibility in the system. As more renewable electricity enters the grid, intelligent control and large-scale battery storage are essential to ensure clean energy is used effectively and grid stability is maintained. HybriX develops, constructs and operates battery storage projects, offering a comprehensive service portfolio across the entire development lifecycle.

About Alfen
Alfen is at the centre of Europe’s transition from fossil fuels to climate neutrality by 2050. With integrated smart solutions, Alfen supports customers across Europe in meeting their electricity challenges and achieving climate objectives. Building on more than 85 years of innovation, Alfen provides smart grid solutions, energy storage systems and electric vehicle charging equipment in around 30 countries.
Alfen has been developing energy storage systems since 2011, with installations now deployed in multiple European countries and representing more than 1GWh of installed storage capacity. More information can be found via TheBattery and the product page for TheBattery Elements 2.0.