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Ultracapacitors for Wind

Ultracapacitors are integrated into wind turbine electrical systems to support pitch control systems, providing high‑power energy under frequent cycling conditions and enabling reliable operation in environments with volatile wind speed and direction.

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Critical Use Cases: Pitch Control & Durability

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Wind Turbine Pitch Control Systems

By continuously adjusting the blade pitch, the system ensures the blades capture the optimal amount of wind energy for the given wind conditions.

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Reduces Maintenance and Improves Safety

Ultracaps’ durability reduces the maintenance and trips to the tops of wind turbines, ultimately improving safety.

Why Ultracapacitors for Wind

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Very High Power Density

  • Very high power density (Watts per liter)
  • High specific power (Watts per kilogram)
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Low Internal Resistance

  • Very efficient charge and discharge (typically 95–98% round‑trip)
  • High current capability
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Long Life

  • DC Life: up to 15 years
  • Cycle Life: up to 1M cycles
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Safety

  • Can be maintained and shipped in a totally discharged state
  • No thermal “runaway”
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Rugged

  • Excellent shock and vibration resistance
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Broad Operating Temperature Range

  • Operating temperature range from -40°C to 65°C (85°C)

Explore Other Applications for Ultracapacitors

Our technologies enable smarter, more resilient performance across critical industries.

Automotive

Automotive

Data Centers

Data Centers

Grid

Grid