This is a sensor to collect information from your Growatt inverters using Growatt server by default. It is possible to specify an alternative endpoint server at configuration time e.g., SMTEN.
This will log into your Growatt account and grab the first “Plant”, after which it collects the inverters on this plant and creates sensors for these inverters as well as total sensors.
Adding Growatt to your Home Assistant instance can be done via the user interface, by using this My button:
If the above My button doesn’t work, you can also perform the following steps manually:
Browse to your Home Assistant instance.
In the sidebar, select Settings.
From the configuration menu, select Devices & Services.
In the bottom right, select the Add Integration button.
From the list, search and select Growatt.
Follow the instructions on screen to complete the setup.