A hybrid energy storage system has been completed in the Netherlands utilising lithium-ion batteries from Leclanché and flywheel technology from S4 Energy.
Swiss company Leclanché partnered with Netherlands firm S4 Energy on the project in Almelo for energy management provider S4 Ancillary Services.
The 8.8MW-capacity battery system includes 7.12MWh of lithium-ion coupled with six of S4 Energy’s proprietary Kinext flywheel storage systems, which deliver 3MW of power.
Stored renewable energy will be used to deliver primary control power for frequency stabilisation to TenneT, the area’s transmission grid operator.
The project is an extension of an earlier pilot system created by the two firms.
Pairing fast-responsive flywheels to reduce the energy throughput and cycling of the lithium-ion batteries will help prolong the lifetime of the batteries to a minimum of 15-years, say the firms.
Leclanché delivered the turnkey battery energy storage system (BESS), the battery inverters and the energy management system (EMS) for monitoring and control of the battery system.
Daniel Fohr, vice president System Engineering, Leclanché, said: “We believe that the combination of these two technologies provides a clear advantage for enhanced ancillary services and the further integration of renewables into the grid.”
