Six lithium-ion based battery storage systems totaling 90MW are set to be built in Germany.
German electricity supplier STEAG is investing €100million ($107million) in the large-scale lithium-ion battery systems from mid-2016 to early 2017, with each one having a capacity of 15MW.
Korean battery powerhouse LG Chem is due to provide the lithium-ion batteries for the systems.
The project is scheduled to cover six regions in the North Rhein-Westfalen and Saarland areas of the country.
The large-scale batteries will provide primary control power – a service for stabilisation of the networks.
In a contract worth €70milllion ($75million) European ESS company Nidec ASI will provide the six systems, each containing five units of 3MW. All systems consist of power converters, a transformer, batteries and the control system.
The six systems are to be operated independently of the STEAG power plants and are capable of relieving the grid fully automatically within a few seconds when there is surplus supply, and also in reverse feeding energy into the grid.