Brussels, October 15, 2024 – Belgium has officially launched its largest battery energy storage system (BESS) to date, featuring a groundbreaking 50 MW/200 MWh capacity powered by Tesla’s Megapack technology. Located in Ville-sur-Haine, Wallonia, this significant project has been brought online by the Netherlands-based energy producer Eneco, which is majority-owned by Mitsubishi.
The Ville-sur-Haine BESS project was first announced in June and has now become operational following a successful three-day energization process. The project utilizes 53 Tesla Megapacks, showcasing a remarkable engineering feat completed in under a year since construction began.

A Milestone for Eneco
As the largest BESS project undertaken by Eneco, the Ville-sur-Haine installation signifies a major step in the company’s strategy to expand its renewable energy offerings. This project not only enhances Belgium’s energy storage capacity but also reinforces Eneco’s commitment to sustainable energy solutions. The new system is poised to play a crucial role in stabilizing the grid and integrating renewable energy sources, particularly as Belgium pushes toward a greener energy future.
Tesla’s Global Ambitions
Tesla’s involvement in this project highlights the company’s expanding footprint in the energy storage market. The company currently operates a 50 MW/100 MWh project in Lessines, Belgium, using 40 Megapacks under the management of Corsica Sole. Tesla’s production capabilities are also on the rise, with its Megafactory in Lathrop, California, ramping up production to an expected output of 10,000 Megapacks per year.
Moreover, Tesla is nearing completion of a second Megafactory in Shanghai, which will match the output of the Lathrop facility. This expansion is part of Tesla’s broader strategy to increase the deployment of its Megapacks and Powerwall batteries, having already delivered 20.3 GWh of battery storage as of the end of Q3 2024.
Growing Demand for Energy Storage
The launch of the Ville-sur-Haine BESS comes at a time when energy storage solutions are in high demand, driven by the growing need for reliable and flexible energy systems. With an increasing reliance on intermittent renewable energy sources like wind and solar, advanced battery storage systems have become essential for balancing supply and demand on the grid.
In recent months, Tesla has seen a surge in demand for its Megapack products, with the Ville-sur-Haine project marking one of several new installations. Last week, another Tesla Megapack project was powered on in Alaska, boasting a capacity of 40 MW/80 MWh, following the successful commissioning of a 100 MW/200 MWh facility in the UK earlier this month.
Impact on Local Energy Landscape
The Ville-sur-Haine project is expected to significantly impact the local energy landscape. By enhancing the grid’s reliability and efficiency, the BESS will facilitate the integration of more renewable energy sources and help Belgium meet its climate goals. The project will also contribute to energy security, particularly in times of peak demand.
Eneco has expressed its commitment to collaborating with local authorities and stakeholders to maximize the benefits of the new battery storage system. The company aims to leverage the capabilities of the Ville-sur-Haine BESS to optimize energy usage and minimize costs for consumers.
Looking Ahead
As the world transitions to more sustainable energy practices, projects like the Ville-sur-Haine BESS represent critical steps forward. They not only demonstrate the viability of battery storage technology but also underscore the importance of partnerships between energy producers and technology companies like Tesla.
With growing investments in energy storage and renewable energy technologies, the future looks promising for Belgium and its commitment to a cleaner, more sustainable energy grid.