This means that the device recognises when the solar system is producing more electricity than is needed in the house. Instead of feeding the surplus energy into the grid, the wallbox then charges the e-car. If several devices are running in the house, the EV's charging power is individually adjusted between 1.4 and 22 kilowatts and the power supply in the house is secured, the manufacturer describes.
See also: Siemens and Mahle to push wireless charging forward
Until now, the additional hub component was necessary to control and monitor all devices via the Myenergi app if homeowners wanted to avoid laying cables. Now the wallbox communicates via WLAN and Ethernet.
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The electricity comes from the home's own solar system or the public grid, depending on availability. In Eco charging mode, the consumption of public electricity is reduced to a minimum. In Eco+ charging mode, only surplus energy is used for charging. (mfo)