Hello dear community
I use the SOLARWATT system at home for my photovoltaic system, namely the Manager Flex 1.0. Here I would like to be able to connect this system with Home Assistant. The Fronius inverter wasn’t a problem at all, but it would be nice if I could also display the storage (the Battery Flex AC-1 1.3).
Thank you very much.
Hi Frank,
the Solarwatt Energy Manager Flex is basically a OpenHab instance “under the hood”, so it is very easy to integrate in different ways.
One way is to use a custom component like this one:
The second way (which may be easier if you are only interested in a few values) is the REST-API of the Solarwatt Manager.
You can access it by IP.of.your.manager/rest/items
This will give you a JSON with all available items of the Solarwatt Manager (names are a bit cryptic though).
As I have no battery connected to my Solarwatt Manager, I can’t help you with the exact name, but I guess you will easily find it in the JSON looking for words like “storage”, “battery” or “charge”.
Once you found the item, you can call it directly like this (it is one inverters power output):
which gives you something like
{
"link": "http://192.168.xxx.xxx/rest/items/sunspecnext_inverter_KACO_new_energy_bp_5_0_NX3_M2_5_0NX312012802_inverter_W",
"state": "480 W",
"stateDescription": {
"pattern": "%.2f %unit%",
"readOnly": true,
"options": []
},
"editable": false,
"type": "Number:Power",
"name": "sunspecnext_inverter_KACO_new_energy_bp_5_0_NX3_M2_5_0NX312012802_inverter_W",
"label": "AC Power",
"tags": [],
"groupNames": []
}
Now you can easily parse the state of this item and use it in HA. Hope this helped a bit.