Abstract: Ultracapacitors are unique energy storage devices that exhibit very high power densities and exceptionally long life. Maxwell Technologies ultracapacitors are used in over 20,000 wind turbines globally.
This presentation will provide an overview of ultracapacitor technology, and show how ultracapacitors can be used for back-up power in electromechanical pitch control systems. Ultracapacitors will be compared and contrasted to batteries as the back-up power source. Finally, the financial aspects for business case development comparing ultracapacitors and batteries will be examined and compared.