Battery storage system BESS Apeldoorn reaches COD and enters Dutch energy markets
Beemte Broekland (Apeldoorn), April 15, 2026 - The battery storage system BESS Apeldoorn, located in Beemte Broekland near Apeldoorn, has successfully reached the Commercial Operation Date (COD) and is thus officially commissioned.
With a capacity of 15 MW and a storage capacity of 30 MWh, the system makes an important contribution to the flexibility and stability of the Dutch electricity grid.
The large-scale battery storage system was developed by Green Energy Storage (GES) on behalf of Encavis and is designed to actively participate in Dutch energy markets. By providing fast and reliable balancing services, the system provides flexibility at times and locations where it is needed most.
Integrated energy solution
The battery system was realized in combination with the nearby Bloemenkamp solar park. This allows locally generated renewable energy to be stored and used at a later time, for example during peak demand or grid congestion. This integration increases the efficiency of renewable energy use and contributes to a robust and future-proof energy system.
The system will operate in multiple flexibility markets, including:
- Frequency Containment Reserve (FCR).
- aFRR services
- Imbalance markets
- Congestion Management
In doing so, Sequoia makes a direct contribution to creating space on an overloaded power grid.
Strong cooperation in the chain
The project came about thanks to close cooperation between experienced parties within the energy chain. Green Energy Storage developed the project on behalf of Encavis. Alfen acted as EPC contractor and was responsible for the supply and electrical integration of the battery containers. The system is equipped with CATL EnerOne+ battery technology and Greenchoice fulfills the role of buyer and market interface.
Mario Schirru, CEO of Encavis
“The successful commissioning of the battery in Apeldoorn shows what is possible through intensive cooperation between partners in development, technology, construction and market access. Projects like this are essential for strengthening grid stability and enable renewable energy to be harnessed where and when it is needed most.”
Rianne ’t Hoen, Project Manager at Green Energy Storage (GES):
“This project highlights the important role that battery storage plays in increasing the flexibility of the electricity system. By participating in multiple markets, the system contributes to grid stability as well as creates value at the times when flexibility is needed most.”
Accelerating the energy transition
The commissioning of the battery in Apeldoorn marks an important step in the further rollout 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 work on the development and realization of battery storage projects throughout the Netherlands, both at high-voltage sites and in combination with solar and wind farms. In doing so, the company is actively contributing to a flexible and sustainable energy system.
