Wallboxes with intelligent control can read out all data and thus regulate the charging power. The wallbox starts with a maximum possible charging process depending on the available PV energy generation and grid feed-in. In this mode, charging processes can start at 1.4 kW, for example, and be gradually adjusted automatically by the wallbox as long as there is surplus solar power available. To ensure this interaction, the PLENTICORE plus is connected into the existing network, with the wallbox, as a data source.
The advantages of 'optimised solar charging' are ease of use and the high cost-effectiveness of charging with solar power. At the same time, the network-based connection allows the largest possible proportion of solar power to be used through continuous charge adjustment. In addition, any potential overload of the house connection can be avoided as the charging power can be reduced early on – before an overload occurs.
If a storage unit (e.g. BYD Premium Battery Box) is connected to the PV system, electric vehicle charging can also be supported by the connected battery. This further increases the proportion of low-cost solar power used for charging up to the point where the car is charged with self-produced PV energy only.
'Optimised solar charging' is possible with various wallbox types. A stable network has to be set up for wallbox and inverter to be connected. The PLENTICORE plus is the perfect match for a wide range of commercially available charging stations:
- Hardy Barth cPH1, cPμ1 mit eCB1
Optimised solar charging with control via external energy manager
With 'optimised solar charging via energy manager', an external energy manager is integrated into the system between the PLENTICORE plus inverter and the wallbox. The energy manager receives all relevant parameters for wallbox operation from the PLENTICORE plus via its data logging and reads them out via the Modbus/TCP interface.