For some time now, S4 Energy has been providing services to grid operator TenneT for maintaining the balance of the grid. The installation in Almelo, consisting of Kinext flywheels and batteries from 2017, has been expanded by S4 Energy to a capacity of 9MW. To support the flywheels and the battery, Batenburg Energietechniek, Batenburg Installatietechniek and Beenen jointly supplied, installed and connected eight different stations.
Expansion of hybrid electricity storage
Accessible transformer substations
The eight substations consist of an accessible transformer substation, a medium-voltage substation containing a Siemens medium-voltage installation, two accessible FDU stations for controlling the flywheels, three compact substations with transformers and a compact substation with transformer and low-voltage distributor. Batenburg Installatietechniek and Beenen provided the medium and low-voltage cabling between the substations.