Dunkelflaute - Vertis Glossary

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Traders of  Environmental Progress

STX Group is a global environmental commodities trader offering physical and financial solutions across compliance and voluntary systems for energy, fuels, gas and carbon markets.

Transforming Climate Challenges into Business Progress

STRIVE is the consulting division of the STX group, helping companies achieve their climate goals through high-impact strategies and optimized decarbonization pathways.

Emissions trading in safe hands

Vertis, a MiFID II trading firm, supports companies in navigating through carbon compliance schemes, including different EU Emissions Trading Systems, CBAM and CORSIA, in a cost-effective way

Moving oil to perfect use

Marine Olie is a trader in vegetable oils and fats, delivering tailored feedstock solutions for biofuels, biomass and animal feed, with in-house blending, lab and storage capabilities.

Is a German term widely used in the energy sector. It literally means “dark lull” and describes periods when there is little or no wind and sunlight at the same time. In practice, a dunkelflaute refers to weather conditions where solar and wind power generation are both very low, often during cold, still winter days with heavy cloud cover. These periods can last for hours or even days, creating challenges for electricity grids that rely heavily on renewables.

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