Read here NETfficient’s partner Fraunhofer ISE press relase about the novel hybrid energy storage system on the island of Borkum. The system consists of a lithium ion battery and a super capacitor for short term power demands. The hybrid storage is connected to the medium voltage grid with a new type of modular inverter.
Other developments from Fraunhofer ISE that contributed to the project are the new business models for storage systems; for example, self-consumption, peak shaving i.e. reducing the price of power, for balancing energy markets, the control of power gradients as wells as the provision of reactive power in the low voltage grid.