Operation manual
Page 18 of 37
4
Function
4.1
Basic operating principle
Figure 4: sonnenBatterie Evo Connection Concept
The sonnenBatterie Evo is an intelligent storage system that monitors and controls
energy production, consumption, and storage in the house. The storage system is
connected to the grid via the main distribution board.
The sonnenBatterie Evo can work with existing or newly installed PV systems. The PV
array does not connect to the storage system directly. The storage system uses a power
meter and current transforms to monitor PV power generation and energy consumption
in the building.
The sonnenBatterie Evo offers three modes of operation: Self-consumption, Backup, and
Time of Use.
4.1.1
Self-consumption mode
Self-consumption is the part of the generated PV power that has been either consumed
at home or stored in the battery. This is the default mode of operation.