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Supplying charging stations with surplus solar power

The manufacturers that are compatible with the Smartfox Pro include Smartfox, KEBA, ABB, Eaton, BMW as well as Alfen, Mennekes and wallbe. There are two modes of charging: Excess charging with your own surplus PV energy and forced charging via a grid connection. In excess charging mode, the charging station is in single-phase operation up to 1.3 kilowatts. Above 4.3 kilowatts, the EMS switches to three-phase operation. A certain grid connection can also be programmed in the excess charging mode. The wallbox can be progressively controlled. A switch-on and switch-off delay can be set in the software. This prevents the charging station from switching on and off at short intervals when the light conditions fluctuate.

In forced charging mode (controllable via the app or a switch), the EV is charged from a grid connection. The Smartfox software includes dynamic load management so that the limit of the house grid connection is not exceeded. The charging current can be set from zero to 32 amperes in one-ampere increments.

Run consumers on surplus energy

Smartfox continuously records the charging energy and this data can be called up daily, monthly or over a freely selectable period. The app allows accessing the wallbox to switch between charging modes or turning off the charging station.

One completely new feature is the option to supply up to five charging stations with excess solar energy. The EMS also allows other consumers such as heating elements, swimming pool pumps, heat pumps, air conditioning units, IR heaters and the like to be run on surplus energy. Full and high-resolution monitoring is available free of charge. The EMS can also be used as a load manager (even without a PV system). (mfo)