Generally speaking, you can connect a Heidelberg Wallbox to a solar power system and charge your car with the surplus power produced. With the Heidelberg Wallbox Home Eco, you can switch the power supply of the solar power system on and off via the system’s inverter. The solar power system is connected via the isolated contact on the Wallbox PCB. The Heidelberg Wallbox Energy Control is the better choice for this application. With the Wallbox Energy Control, the charging current can be controlled dynamically via the so-called Modbus.