Dunkelflaute: Managing Low Wind and Solar Generation

What Is a Dunkelflaute?

A Dunkelflaute describes temporary periods of low wind and solar output. These events are often cited as challenges for renewable-based electricity systems.

Ensuring Grid Stability During Low Renewable Output

Modern power systems rely on:

• Flexible demand management
  
  
• Battery storage
  
  
• Long-duration storage solutions
  
  
• Cross-border electricity trade

With renewable energy already representing a significant share of electricity generation, system flexibility continues to improve.

Long-Term Storage and Green Hydrogen

Seasonal storage solutions such as biogas, biomethane, and green hydrogen help bridge longer periods of reduced renewable output.

A combination of short-term batteries and long-term storage technologies strengthens overall grid resilience.