
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.

Critical Use Cases: Pitch Control & Durability

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.

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

Very High Power Density
- Very high power density (Watts per liter)
- High specific power (Watts per kilogram)

Low Internal Resistance
- Very efficient charge and discharge (typically 95–98% round‑trip)
- High current capability

Long Life
- DC Life: up to 15 years
- Cycle Life: up to 1M cycles

Safety
- Can be maintained and shipped in a totally discharged state
- No thermal “runaway”

Rugged
- Excellent shock and vibration resistance

Broad Operating Temperature Range
- Operating temperature range from -40°C to 65°C (85°C)


