Maxwell Ultracapacitors Providing Resilience to Island Microgrids

Island grids and off-grid microgrids require stable sources of power and are the most sensitive to power fluctuations from intermittent solar and wind energy generation.

Fraunhofer Institute for Solar Energy Systems ISE has established a flexible hybrid energy storage system using intelligent energy management for reliable and resilient supply of power and energy from renewables. Located on Borkum Island in the North Sea, the storage system consists of 1MW/10kWh of Maxwell ultracapacitors and 500kW/500kWh of Li-ion battery. The ultracapacitors smooth out power peaks and increase the battery lifetime by removing peak power demand and cycling demands from the battery.