Key challenges: reliability and performance
Our projects showcase our ability to combine technical performance, the highest safety standards and environmental responsibility.
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Energy Storage
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Key challenges: reliability and performance
Our projects showcase our ability to combine technical performance, the highest safety standards and environmental responsibility.

Wide-ranging expertise
Adapting to the unique local characteristics of each project, we are able to help optimise resource management and support the energy transition.

Delivering custom solutions
The security requirements demanded by each project are comparable to those in the nuclear industry. We design infrastructure that is tailored to the environment and industry standards, combining innovation with meticulous execution.
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Drawing on our expertise in large-scale projects
We tackle the complex technical and industrial challenges associated with giant storage tanks, concrete barges and cryogenic tanks. We ensure the highest long-term safety and performance standards.
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Conservation
We always incorporate an environmental dimension into our projects. At the Dunkirk methane terminal in northern France, for example, we paid particular attention to coastal biodiversity, especially during the nesting season.
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We tackle some of the most complex challenges to make energy production and storage possible, whether we are building enormous concrete barges or clusters of giant storage tanks.
The N’Kossa barge, which is anchored at a depth of 170 meters off the coast of Congo, is a historic feat of engineering. Its design is inspired by both nuclear containment structures and shipbuilding. This unprecedented combination ensures the structure’s safety and watertight integrity.
More recently, three storage tanks were required for the Dunkirk LNG terminal. Each tank is 90 metres in diameter and 50 metres high, and can store LNG at -160°C. The tanks’ 80-centimetre-thick post-tensioned concrete walls are lined with a cryogenic steel skin to ensure complete leak-tightness.
Demonstrating our ability to combine technical excellence with an unwavering commitment to safety and environmental protection, these projects fully illustrate our contribution to the strategic sector of natural resource management.
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Design-build of three liquefied natural gas tanks.

VSL performed post-tensioning works for one of Europe’s largest ethane storage tanks in a petrochemical complex 40km west of Edinburgh.

The largest pre-stressed concrete barge in the world at the time.