it happened that I am planning to install some solar panels on my house’s roof.
I need a simple and clean way (without any CT clamps) to measure my house’s electricity usage and instantaneous power.
I was thinking about the module which could be mounted on the DIN rail in my fuse box.
Are there any plug-and-play solutions in the market?
yes, afaik there are some… but I don’t know how good and reliable they are…
There are modbus based ones (which I would prefer)
- SDM630 (three phase)
- SDM120 (one phase)
- SMART METER TS 65A (Fronius) which is a two way meter (import & export)
And, I’ve just learned that there are also some devices that connects via Tuya (I don’t know, if they are using Wifi / ESPchips, or whatever)…
I heard that you should avoid Toya at all costs
The other ones are nice, but I would prefer a straightforward solution with Wi-Fi. Maybe if there are no other products I will consider using one with Modbus.
EDIT: by the way, maybe there is any wi-fi <-> Modbus bridges that allows easy integration with home assistant?
I would not prefer the tuya devices (this is why I made the recommendation above) - but wanted to list them as an option (personal preferences doesn’t count )
I haven’t seen others based on Wifi - and personally, I would not rely on any similar technology for such devices…
You can try to check the following:
This is a modbus proxy that can be installed on a Raspberry pi… so you could install this within your fuse Box - connect the meter to it… and then connect HA over wifi to the proxy / raspberry
ESPHome would support ModbusRTU directly.