Hello
For approx. a year ago I chose to replace my Fibaro HC2 system with Homey Pro early 2023.
Ever since then, I have greatly benefited from the experiences that Homeyâs other users have posted online.
So I thought that now there might be some of you who can also make use of my experience in making a fully automatic system for charging an electric car exclusively with solar power from a Huawei solar cell system with, for example, a 10 KW solar cell battery.
I tried for a long time to use the Homey app Huawei Solar, but had to give up in the end as the app could not âseeâ my system.
The Homey app SolarEdge + Growatt TCP Modbus, on the other hand, works really well with my Huawei battery solar cell system.
Note that no data will be transferred to Homey until you activate modbus.
Since Modbus per default not activated, it is necessary to enter the Fusions Solar app to activate the function.
In my Easee app for my charging stand, I have made the following setting: âCharge with solar cell and excess currentâ.
Then install your charging app in Homey.
It will now be possible to create flows.
I have chosen the following 2 simple flows:
1 If the Huawei battery percentage is less than 70%, turn off the charger (Easee).
2 If the Huawei battery percentage is greater than 80 percent, turn on the charger (Easse).
The electric car will now quietly charge approx. 4.1 Kw. when there is excess current and will take power from the Huawei battery in case of cloud cover, but never drain the battery to less than 70%, as charging stops at 70%.
Now all you have to do is plug the charging plug into the car and Homey will ensure that only solar power is charged, either directly or partially from the battery that is charged with solar power.
Note that in winter, when there is very little solar power, the system will of course not work.