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In operation

BESS Battery Park Vilvoorde

With a total capacity of 200 MW / 800 MWh, ENGIE’s battery park in Vilvoorde is the largest in Belgium and ranks among the biggest in Europe. It consists of 320 lithium-ion containers that can store 200 megawatts of electricity for 4 hours at full power and release it back to the grid for another 4 hours later in the day. This is equivalent to the average daily electricity consumption of 96,000 Belgian households.

A key driver for the energy transition

The flexible storage capacity of batteries plays a crucial role in the energy system of tomorrow: by balancing supply and demand, they support the electricity grid and enable us to make the most of available renewable energy. They are an essential complement to the growing share of renewable sources such as wind and solar in the electricity mix, making them a vital link in the energy transition. In addition to Vilvoorde, ENGIE is currently building battery parks in Kallo and Drogenbos. By the fourth quarter of 2027, ENGIE will have a total battery storage capacity of 380 MW / 1.5 GWh in Belgium.

Vincent Verbeke, CEO ENGIE Belgium:

“Flexible production and storage technologies are at the core of our strategy because they are essential for the transition to a carbon-neutral energy system based on renewable sources. With our battery projects, we put that strategy into practice and contribute to building the sustainable economy of tomorrow.”

Key figures

200 MW
Total capacity

96 000 Families
Equivalent consumption

800 MWh
Total storage capacity

320 Containers
Number of battery containers

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Related projects

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The battery park in Drogenbos

After obtaining the building permit in 2023, ENGIE started the construction of an 80 MW battery park at its Drogenbos site. The batteries will be able to supply energy for four hours, representing 320 MWh of storage capacity, equivalent to 64,000 home batteries of 5 kWh. Once fully charged, they could cover the electricity consumption of 38,400 households.

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Kallo Battery Park

ENGIE is currently building a new 100 MW battery park (Li-ion batteries) at its Kallo site. The batteries will be able to supply energy for four hours, representing 400 MWh of storage capacity, equivalent to 80,000 home batteries of 5 kWh. Once fully charged, they could cover the electricity consumption of more than 48,000 households.

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BESS Battery Park Coo

ENGIE is continuing the rollout of its large-scale BESS projects in Belgium. The future battery park at Coo will have an output of 74 MW and a storage capacity of 296 MWh, to store electricity when renewable generation is abundant and feed it back into the grid when demand is higher, delivering power at full capacity for up to four hours.

Articles and press releases

ENGIE has started construction of a new large-scale battery park in Coo, Belgium

Following Vilvoorde, Kallo and Drogenbos, ENGIE is continuing the rollout of its large-scale BESS projects in Belgium. The future battery park at Coo will have an output of 74 MW and a storage capacity of 296 MWh, to store electricity when renewable generation is abundant and feed it back into the grid when demand is higher, delivering power at full capacity for up to four hours.

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Interview | Shakhida: "Every day, I'm helping build the energy of tomorrow."

When Shakhida Ilyasova discovered as a young girl in Uzbekistan that mathematics and physics were her favourite subjects, her interest in technology quickly grew. Today, she works as an E-mobility & Project Engineer at Laborelec, ENGIE’s expertise centre in Belgium. There, she contributes to innovative projects focused on electric mobility and sustainable energy.

First spade in the ground marks start of construction for ENGIE’s new battery park in Vilvoorde

ENGIE received the permit for the construction of a new battery park in Vilvoorde in July 2023, and after the project was selected for capacity remuneration in October 2023, work on the site quickly started. A 3.5-hectare site was prepared and will soon accommodate 320 battery modules measuring 25 m x 4m x 3m. Each of these will be combined with an inverter, a transformer and the required electrical installations to connect them to the high-voltage grid.

Our strategy to accelerate the energy transition