I did, I’ve mirrored the port on my switch, to which the inverter is connect, to another port where a raspberry pi is connected. I’m dumping the traffic the inverter sends/receives using tcpdump, piping it into a Python script.
The traffic is TLS encrypted… but that’s not always the case. Just after installation (or after factory reset), the Solar Edge will communicate un-encrypted. After 24-48 hours ish, an encryption key will be send to the inverter by the Solar Edge platform. Since I was listening already at the time, that key was intercepted as well.
So now I am able to keep listening in, even when it is in an encrypted state.