Brand new and still getting acquainted with all the terms and uses. In regards to automation using Home assistant which type of inverters are all supported? I see a lot of Victron but does anyone know of other brands like Sunsynk etc?
I’m currently using a growatt which I believe can’t be managed by HA so I want to find out which inverters can be automated when I upgrade. Thank you.
I think I have seen Sunsynk modbus, it doesn’t look straight forward though.
Would love one day to maybe setup what you want Victron to export and it just does (I know there are sooooo many different types of system however a config page you setup and then it auto mqtt discoveries the rest)
Victron you use the modbus integration I believe, never used it myself.
The sunsynk I think there are 2 options.
a. some ESP option where you build it yourself, not really sure
b. There is some module you buy and it sends everything to HA over mqtt. Also a very decent setup. I believe this option uses SolarAssistant integration with Home Assistant
Then yes I have a goodwe where the integration works amazing. I would still go the sunsynk route now if I did it over.
I have a Deye 8KW and I am running a little RaspPi Zero with a USB to RS485 comms with some NodeRed to perform all the modbus functions. All the inverter data is sent back to home assistant running inside a KVM on my server via MQTT.
I have a DIY Lithium Battery with a Daly BMS so I also fetch the BMS values from the PiZero over bluetooth (GitHub - tomatensaus/python-daly-bms: Python module for Daly BMS devices) I had to panelbeat the code a bit to work for my Daly BMS.
I have home assistant automations to limit the charge current on my inverter as the battery approaches 100% charge. This avoids the poor BMS needing to shut down a 60A charge current vs 22A (with the automations). In theory those mosfets should last longer
I also have automations to prioritise the charge of the battery on rainy days, inverter setting “charge priority” (I refuse to charge from the grid). My inverter switches over to grid if the battery is below a defined value.
I also switch on my heatpump automatically when the battery is close to full so that some excess power can be stored as heat.
Oh by the way Deye and Sunsync is identical the hardware and firmware works exactly the same, the only difference is the sunsync has a different screen.
Sounds like a great setup. So just to clarify you are able to adjust the invertors mode settings (timer) on the fly with HA and NodeRed?
This is the type of automation I want to invest in to allow the system to adjust itself when I’m not around…and later on, be able to import my area’s Load Shedding schedule and adjust around that as well.
I have a “blue” GF1000 inverter and kind of reverse engineered the modbus by looking at the windows
app(horrible horrible software) that came with the CD. I prefer using an ESP32 conected to it. Here is
Not worth the money buying them anymore but here it is anyway.
My YAML file if anyone wants to use it change it etc:
today you need multiple copies of the addon running (you can make local copies or use dev/the original one if that works for you)
The intention (and the MULTI addon supports the configuration for this today) is to allow reading multiple ports/USB devices in the future… but no specific timeframe on this yet. Most of the building blocks are in place with multi. But I don’t really have a test environment to do this on.
I have spent about 2 months building a module that is pretty much plug and play into home-assistant (Micro-controller) and your inverter shows up as a device that allows you to change almost all settings on a Sunsynk/Deye. The idea is to share a fully set-up home assistant backup so that anyone can restore it, and instantly have a fully functional solar monitoring system, complete with dashboards, graphs, and config screens and sample automations. A sort of bootstrap to get your solar onto home-assistant and get you started.