I recently moved into a house that came equipped with a PV (solar) installation with two Delta SOLIVIA inverters and the SOLIVIA Gateway, a device that is hooked up to the inverters and sends their data to the cloud.
I don’t particularly care for having that data uploaded somewhere, and from what I have gathered, it requires a paid subscription if you want to be able to monitor it.
I’m only interested in the power generation statistics, and it turns out those are quite easy to scrape from the gateway directly.
Disclaimer: my gateway is running firmware 1.03.21 and has been configured to use a static IP address in my local network. I’m using 192.168.1.100 as an example below.
To retrieve inverter statistics, you need to know its serial number. The easiest way to find this is to open the following URL: http://192.168.1.100/Inverter.htm
This should list the connected inverters, including a link to the power overview page for each inverter. Below I’m using a serial number placeholder of “0000”, make sure to replace that with your actual serial number.
I’m defining two sensors, one for actual generated power (in Watt) and one for total generated energy (in kWh):
- platform: scrape
name: Actual Power
resource: 'http://192.168.1.100/ID_0000'
select: 'tr:nth-child(10) td:nth-child(2)'
value_template: '{{ value|int }}'
scan_interval: 30
unit_of_measurement: 'watt'
- platform: scrape
name: Total Energy
resource: 'http://192.168.1.100/ID_0000'
select: 'tr:nth-child(11) td:nth-child(2)'
value_template: '{{ value|int }}'
scan_interval: 120
unit_of_measurement: 'kWh'
Found this topic while looking to purchase an extra Delta Solivia Gateway M1 G2 for my house
It’s also possible to set the gateway in a “passtrough” mode, to communicate with the inverters directly. I was having trouble with generic Ethernet-RS485 gear, but relaying the commands through the gateway got me a working communications path with the gateway.
Sadly the exact command sequences aren’t publicly documented (as far as I know), I got them directly from Delta under NDA in 2013/2014. Still, if anyone reads this and is interested, I’d be happy to help search whether it can be found publicly nowadays, or share the contact details that I used in the past to get the documents.
Just some comments, as I’ve just finished my ESPHome Solivia Gateway M1 G2 modbus sniffer
If you want extended details from your inverter, then an ESPHome modbus sniffer is the easiest and simplest solution.
Many commands are now public available and a few guys have identified and posted the majority of registers in the different inverter package replies. There seems to be at least three different package lengths out there. All depending on model and firmware.
My specific inverter package differs a lot in both length and the registers index in the package from other examples I’ve found on the net. So I had to do the job from scratch. Only missing a few unknown registers now
If you’re interested then take peek at this thread. I’ll publish my final config in a few days.
Thanks for your post, I used it for my Solivia 2.5 EU G4 TR. It works okay, but there is some sort of magic line at about 160 watt. What I mean with that is that normally the Actual Power sort of defaults to 160 watt, so in the morning it starts with 160 watt until the inverter really is generating more power, and in the evening it will settle on 160 watt until it really isn’t producing any power anymore.
I do actually see the 160 watt value at the inverter page, so the sensor is doing it’s job. I see there are different solutions out there to read this inverter, but this scraping method is nice and real easy with no hardware required.
Did you, or anybody else of course, happen to stumble on this problem?
The actual power for both my inverters is at 0 at the moment, as expected. The chart isn’t particularly smooth, but it doesn’t look like it has a magic value like you’re seeing.
Could you help me with the following,
How do i put the m1g2 gateway into passthrough mode.
Have you found online the modbus adress list of the solivia 3.3.
Did you read my first post? That’s how I retrieve the information from my gateway (which isn’t logged in to the Solivia cloud, but I don’t think that matters).
Try retrieving this URL from your gateways: http://192.168.1.100/Inverter.htm (replace “192.168.1.100” with the IP address for your gateway).
.Maybe you can help me ?