Battery storage system BESS Apeldoorn reaches COD and enters Dutch energy markets
April 15, 2026
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The battery energy storage system “Apeldoorn”, located in Beemte Broekland near Apeldoorn, has successfully reached Commercial Operation Date (COD) and is now operational.
With a power capacity of 15 MW and a storage capacity of 30 MWh, the system contributes to increased flexibility and stability of the Dutch electricity grid.
The grid-scale battery energy storage system was developed by Green Energy Storage (GES) on behalf of Encavis and is designed to participate in the Dutch energy markets. By delivering fast and reliable balancing services, the system provides flexibility exactly when and where it is needed.
The battery system is co-located with the nearby solar park Bloemenkamp, enabling locally generated renewable energy to be stored and dispatched during periods of high demand or grid stress. This integration enhances the efficiency of renewable energy usage and supports a more resilient and future-proof energy system.
The system will be active in multiple flexibility markets, including:
The project reflects close collaboration between experienced partners across the energy value chain. Green Energy Storage developed the project on behalf of Encavis, while Alfen acted as EPC contractor and was responsible for the delivery and electrical integration of the battery containers. The system is equipped with CATL EnerOne+ battery technology, and Greenchoice acts as offtaker and market interface.
Mario Schirru, CEO of Encavis:
“The successful commissioning of the Apeldoorn battery demonstrates what can be achieved through strong collaboration with our partners across development, technology, construction and market access,” says Mario Schirru, CEO of Encavis. “Projects like this are essential for strengthening grid stability and enabling renewable energy to be used where and when it is needed most.”
Rianne 't Hoen, Project Manager at Green Energy Storage:
“This project demonstrates how battery storage can play a key role in adding flexibility to the electricity system. By enabling participation across multiple markets, the system supports grid stability while creating value from flexibility where it is needed most.”
The commissioning of the Apeldoorn battery marks an important step in the further deployment of large-scale energy storage in the Netherlands. By adding flexibility to the electricity system, the project supports the integration of renewable energy and contributes to a reliable and balanced grid.
Green Energy Storage continues to develop and realize battery storage projects across the Netherlands, both at high-voltage grid locations and in co-location with solar and wind parks, contributing to a more flexible and sustainable energy system.
About Green Energy Storage (GES)
Green Energy Storage develops, builds and operates large-scale battery energy storage systems in the Netherlands. The company manages the full project lifecycle, from site identification and permitting to financing, realization and operational management. Through its growing project pipeline, GES actively contributes to grid balancing and congestion mitigation.
About Encavis
Encavis is a next-generation IPP. The company operates a broadly diversified portfolio of onshore wind farms, ground-mounted solar parks, and battery storage systems across 13 European countries, including Germany, Italy and Spain. In addition, Encavis offers institutional investors attractive opportunities to participate in Renewable Energy assets. Its subsidiary, Stern Energy, complements the service portfolio as a Europe-wide specialist in technical services for photovoltaic systems.
With a total installed capacity of around 4,9 gigawatts, Encavis makes a significant contribution to sustainable energy supply and the achievement of Europe’s climate goals.