About Zeevonk

Zeevonk is an integrated energy project in the North Sea that combines offshore wind, floating solar, and green hydrogen production. By bringing these technologies together, it creates an advanced energy system that not only generates renewable electricity but also develops new ways to store and use that energy. 

Logo_as_zeevonk

Vattenfall and Copenhagen Infrastructure Partners are developing the project approximately 62 kilometres off the Dutch coast. The wind farm will have a total capacity of around
2 gigawatts, enough to power 2 million households, making a substantial contribution to the decarbonisation of the Dutch energy system. 

At the core of the project is a large-scale offshore wind farm using  turbines with a capacity of around 15 megawatts each. Within the same area, a floating solar park will also be installed. By combining wind and solar energy, the project makes more efficient use of available space at sea while creating a more stable and diversified renewable energy output.
 Map of the Zeevonk wind farm, electrolyser, and Dutch grid integration

Part of the electricity generated will be used to produce green hydrogen at the ‘Maasvlakte’ in the Port of Rotterdam. Hydrogen is already widely used in industries such as refining, chemicals, and fertiliser production. When produced using renewable electricity, it can significantly reduce CO₂ emissions in these sectors. 

By integrating offshore wind, solar energy and hydrogen production, Zeevonk demonstrates how different technologies can work together to form a more flexible and resilient energy system.

Vattenfall@2x

Vattenfall is an energy company with a strong presence in the Netherlands, where it supplies electricity and heat to households and businesses. The company focuses on developing and operating renewable energy and combines production, infrastructure and customer supply. In projects such as Zeevonk, it works on integrating large-scale renewable generation into the Dutch energy system, supporting the shift away from fossil fuels.

Cip1-final-logo-blue

Copenhagen Infrastructure Partners (CIP) is an investment manager specialising in large-scale renewable energy and energy infrastructure. The company develops and finances projects such as offshore wind, solar energy, energy storage and hydrogen production. In the Netherlands, it partners with Vattenfall on Zeevonk, contributing financial structuring and project development expertise to support the rollout of integrated energy systems.

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Zeevonk

The name Zeevonk refers to a natural phenomenon in the sea. Zeevonk is a type of plankton that produces bioluminescence: when the water is disturbed, these microscopic organisms emit a blue-green glow that becomes visible at night. This natural effect symbolises energy generated from the sea. Just as zeevonk makes the water light up, the project aims to generate new energy from wind, solar and water. The name highlights two key aspects of the project: the power of the sea and the transition to sustainable energy.

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