Sonnen sonnenBatterie eco 7.0 Series, Operation And Installation Instructions Manual, Page: 16 / 115

3 Product description
3.3 Functional description
3.3.1 Basic principle
Figure 1:
sonnenBatterie function
1 Public electrical mains
2 Measurement of generation
3 PV system
4 Storage system
5 Measurement of consumption
6 Consumers in the building (e.g.
washing machine, hob, lamps,
refrigerator, etc.)
3
4
2
5
6
1
The storage system (4) constantly measures the current power generation (2) of
the PV system
1 (3) and the ongoing consumption (5) in the building.
Generation > consumption
If the generation of power is greater than the consumption, the surplus power
(difference between generation and consumption) is stored in the storage system.
The battery is charged.
For example, if 3000 watts are generated and 1700 watts are consumed, the
battery is charged with a power of 1300 watts.
Consumption > generation
If the consumption is greater than the generation of power, the deficit (difference
between consumption and generation) is provided by the storage system. The
battery is discharged.
For example, if 3500 watts are consumed and 2000 watts are generated, the
battery discharges a power of 1500 watts.
1 or of another generator like a wind turbine or district heating plant, for example.
Page 16 of 115 KD-262 | Part-No 52199 | EN | Version 1.00