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Dunkelflaute is a term used in the energy sector for a period of time in which little to no energy can be generated with the use of wind and solar power. The term is German in origin and a blend word of the german ‘Dunkelheit’ (darkness) and ‘Flaute’ (little wind). The periods called Dunkelflaute are a big issue in energy infrastructure in which a significant amount of electricity is generated by wind and solar power. To ensure power during such periods alternative energy sources must be present in a sufficient capacity. When that happens countries use either fossil fuels (e.g. oil, methane gas, coal) or hydroelectricity, nuclear power and, less often, energy storage to prevent a power outage.

The first use of the term in an academic paper is in 2014. [1]

In the media



  1. Borggrefe, F.; et al. (2014). "Kurzstudie zur Kapazitätsentwicklung in Süddeutschland bis 2025 unter Berücksichtigung der Situation in Deutschland und den europäischen Nachbarstaaten" (PDF). Kurzstudie des Deutsches Zentrum für Luft und Raumfahrt (DLR) und Institut für Energiewirtschaft und rationelle Energieanwendung (IER) der Universität Stuttgart im Auftrag des Landesministeriums für Umwelt und Energiewirtschaft Baden-Württemberg (UMBW) , Stuttgart. Archived from the original (PDF) on 2020-10-21. Retrieved 22 October 2020.

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