In Vilvoorde, on the outskirts of Brussels, Belgium, mainland Europe’s largest battery energy storage system has reached a major milestone. Energy giant Engie and global leading energy storage system provider Sungrow announced this week that the first phase of the 200MW/800MWh energy storage project, comprising 100MW/400MWh, has been successfully connected to the grid, with the second phase expected to be completed by the end of 2025.
Record-Breaking Storage Capacity
The project has deployed 320 units of Sungrow’s PowerTitan liquid-cooled energy storage systems, occupying approximately 3 hectares within the 30-hectare area of the Vilvoorde gas power plant. Once fully operational, the project will be able to provide clean and reliable electricity to up to 96,000 Belgian households, becoming a landmark project in Europe’s energy transition.
Moritz Rolf, Vice President of Sungrow Europe, emphasized the strategic significance of the project: “Battery storage is one of the most critical, yet often overlooked, components of a successful energy transition. The Vilvoorde project fully demonstrates how Sungrow’s technology provides the grid flexibility essential for the next phase of Europe’s renewable energy development. Our strategic partnership with Engie on the Vilvoorde project underscores the important role of energy storage in delivering clean power for all and strengthens our commitment to the European market.”
Innovation Advantages of Liquid-Cooling Technology
Sungrow’s PowerTitan energy storage system features a compact design equipped with intelligent liquid-cooling technology, ensuring temperature control, cost-effectiveness, and system reliability. According to industry information, the liquid-cooling configuration of the PowerTitan 2.0 series applies liquid cooling to both the power conversion system and battery storage, achieving a 7% density increase compared to previous generations, significantly improved thermal performance, and noise reduction from 79 decibels to 75 decibels.
The advantages of this liquid-cooling technology lie not only in increased energy density but more importantly in extending battery lifespan. The intelligent temperature control system can maintain battery temperature differences within 2.5 degrees Celsius, which is crucial for the long-term stable operation of large-scale energy storage systems. The compact design optimizes land use, and for large-scale infrastructure construction, rapid deployment and operational efficiency are critical factors.
Strategic Energy Transition Layout
The Vilvoorde site has been dedicated to power generation since the 1960s and is now transitioning toward cleaner energy. This transformation reflects the development trend of the entire European energy industry. Notably, the project was originally planned as a gas-fired power plant, but due to permitting obstacles, it ultimately pivoted to battery storage, which has resulted in mainland Europe’s largest energy storage project today.
Vincent Verbeke, CEO of Engie Belgium, stated: “With the first series of batteries now operational in Vilvoorde, Engie is delivering part of the additional flexibility the electricity grid requires to balance supply and demand. The efficient construction of this battery park is only possible thanks to strong partnerships. By working hand in hand with trusted and innovative partners such as Sungrow, we can continue to accelerate the integration of renewables into the grid and help deliver a more reliable, sustainable, and affordable energy system.”
Critical Support for Grid Stability
The Vilvoorde project represents positive progress in modernizing Europe’s energy infrastructure, demonstrating the continent’s determination to work toward its 2050 sustainability goals. By absorbing surplus energy during periods of high production and releasing it back to the grid when demand is high, large-scale battery storage ensures flexibility and stability in renewable energy supply.
The energy storage system has signed a 15-year capacity market contract with Elia, Belgium’s transmission system operator, and will play a long-term stable role in Belgium’s electricity market. The deployment of such large-scale energy storage systems serves as a blueprint for effectively integrating renewable energy into legacy infrastructure, balancing the grid, and mitigating grid congestion issues.
Expansion of Belgium’s Energy Storage Landscape
The Vilvoorde project is not Engie’s only energy storage deployment in Belgium. The company is also developing other energy storage projects in Belgium, including the 100MW/400MWh project in Kallo, which is currently under construction and scheduled for completion in 2027. This demonstrates Engie’s long-term commitment to the Belgian and broader European energy storage market.
Engie is also developing an 80MW/320MWh energy storage project in Drogenbos. Together, these projects form an important part of Belgium’s energy storage network, providing solid technical support for the country’s energy transition.
European Energy Storage Competition
While Sungrow claims Vilvoorde is the “largest in mainland Europe,” Bulgaria commissioned a 124MW/496MWh energy storage system in May this year. Once Engie and Sungrow complete the second phase of Vilvoorde, the record holder for “mainland Europe’s largest” will be clearer.
It’s worth noting that if the scope is extended to the United Kingdom, the UK’s largest energy storage project is the 300MW/600MWh system in Thurrock. These data indicate that competition in the energy storage field among European countries is intensifying, with large-scale energy storage projects becoming critical infrastructure for energy transition.
Technological Innovation Drives Industry Development
Sungrow has established a strong local presence in the Benelux region, with offices and an R&D center in Amsterdam, providing technical support, sales, and after-sales service teams. This localization strategy enables Sungrow to better respond to European market demands and provide timely technical support and services.
The successful commissioning of the Vilvoorde project not only marks an important step forward for Belgium in renewable energy integration but also sets a benchmark for large-scale energy storage projects across mainland Europe. As renewable energy installed capacity continues to grow, the role of energy storage systems in grid stability and energy transition will become increasingly prominent, and the demonstration effect of this project deserves the attention of the entire industry.
