Peak load shaving

With the "Peak Load Shaving" function, you can optimize the behavior of the battery inverter with respect to the power exchange at the point of interconnection. This is mostly useful when a higher supply of energy would lead to a higher electricity cost. With the "Peak Load Shaving" function, certain grid-exchange power outputs to which the battery inverter is adjusted depending on its power and battery capacity available can be set. Power peaks and additional costs can thus be avoided.

You can configure setpoints for the power drawn at the point of interconnection. When the loads require additional energy, the battery is discharged and the maximum value is kept constant at the grid-connection point. This is based on the prerequisite that the battery is sufficiently charged.

Information: Firmware version 3.06.18.R with SIxx-20 and STPSxx-20
In very rare cases, the threshold for peak load shaving may not be met. This only occurs if the sum of the battery and PV inverter power of the devices registered in the system is lower than the peak load and if no grid services have been activated.
The reason for this is the system parameter Parameter.Inverter.WMaxIn. This parameter limits the maximum input power of the inverter. If this value is lower than the set limit for peak load shaving, the battery cannot discharge any further.