Yes, there is a charging rule that allows you to configure that charging should only take place if the solar power system delivers a certain minimum power. The cFos Charging Manager can read generation counters, SMA inverters and inverters that support SUNSPEC. More will follow. You can also test yourself
whether the Charging Manager already supports your solar installation.
There is a charging rule in the integrated Charging Manager with which you can set that the electric car should only be charged when a certain amount of solar power is available. In addition, you can set in different variations the power with which charging should then be carried out. Here we can easily retrofit other variants for optimal use of the available power.
What we do not currently support is the automatic switching on and off of individual phases when the solar power drops below 4200 W. We would have to use separate contactors for this. For this, we would have to be able to switch the phases individually using separate contactors. We are considering providing a retrofit kit for the cFos EVSE
. However, this will not be feasible before Q2 2021.Here's a workaround
: If you know that the solar system delivers less than 4200 watts, you can switch off one or two fuses (circuit breakers) with which the supply lines to the wallbox are protected (just not the one with which the cFos Charging Controller
is protected). However, you may not switch individual phases on or off during the charging process