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© 2017 KOSTAL Solar Electric GmbH
Operation and operating the device
4.9 The energy management system in the inverter
Fig. 46: Control and distribution of the energy flows
1
PV energy:
Consumption via local consumers
2
PV energy:
Feed-in to the public grid
3
Grid energy:
Consumption via local consumers
The energy management system (EMS) controls the
distribution of the energy between the DC side (solar
generator) and the AC side (building grid, public grid).
For this purpose, the EMS checks for the presence of
consumption in the internal home network. The logic of
the EMS then calculates and controls the optimal usage
of PV energy.
The generated PV energy is primarily used for consum-
ers (such as light, washing machine or television). The
remaining generated PV energy is fed into the grid and
remunerated.
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