Energy management

The energy management system controls the distribution of energy between the DC side (battery) and the AC side (domestic grid and public grid). To do this, the energy management system checks whether there is any consumption on the domestic grid. The logic of the energy management system calculates and controls the optimal use of PV energy. Priority is given to using the generated PV energy for the home’s own consumption. The remaining generated PV energy is fed into the public grid and remunerated.

The energy from a connected battery is used for the following:

• Local consumers
• Feed-in to the public grid (only possible via external battery control/battery manager)

The energy from the public grid is used for the following:

• Local consumers
• Charging the battery, e.g. to protect the battery in winter or via external battery control/battery manager.

The energy from additional AC generators is used for the following:

• Local consumers
• Charging the battery
• Feed-in to the public grid in the event of surplus