@Pale_Rider you can find out by querying your Powerwall directly via the API. If you're not familiar with the API or curl I'm happy to give you more pointers. Change <IP> to your Powerwall IP on your local network and <password> to your customer password. After the first query completes you'll get an authentication token in the reply (<token>), use that in the second request to get the solar system configuration. Note that these commands are set up for Windows, if you use Linux strip the \s off of the json blob in the first curl command post.
Code:
curl -s -i -X POST -H "Content-Type: application/json" -d "{\"username\":\"customer\",\"password\":\"<password>\",\"force_sm_off\":false}" https://<IP>/api/login/Basic
Response:
{"email":"","firstname":"Tesla","lastname":"Energy","roles":["Home_Owner"],"token":"<token>","provider":"Basic"}
Code:
curl -k --header "Authorization: Bearer <token>" https://<IP>/api/solars
Response:
[{"brand":"<brand>","model":"<model>","power_rating_watts":<power>,"server_count":0}]