It is possible to monitor the output and energy consumption of your charging stations By means of CT terminals, the amount of power (per phase) can be measured which is available to your vehicle. In addition to the CT clamps, each brand of wallbox needs a communication module. This is necessary so that the charging station knows how much solar power is available.
For the Ratio Solar-box you need the sensor-box and for a Myenergi Zappi you need the Harvi.
You can monitor the yield and consumption in a free downloadable App from the brand of the charging station.