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dunkelflaute

'Dunkelflaute' ('dark doldrums' or 'dark lull') events, where both sun and wind resources are low for extended periods of time, do not have to be the barrier to renewable energy they were once thought to be. Image: wikimedia user AleXXw, used under commons license Attribution-Sharealike Austria 3.0.

Without transparent energy planning, the lights could go out

February 19, 2026
A team from Open Energy Transition discusses the benefits of open energy system modelling in assessing resources, including energy storage of varying durations.
Rendering of a project to put a 100MW hydrogen electrolyser facility at the site of a gas power plant in Lingen, Germany. Image: RWE

Germany plans long-duration energy storage auctions for 2025 and 2026

September 23, 2024
The German government has opened a public consultation on new frameworks to procure energy resources, including long-duration energy storage (LDES).
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