Starting a new thread as this was getting lost in the Hints, Tips & Troubleshooting thread.
Post details of your integration with Home Assistant etc.
You don't have to actually, there is a way you can run directly modbus from your HA server, https://github.com/kellerza/sunsynk is one of them, probably a few more options out there but I couldn't be bothered, I wanted a plug and play solution that allows control in case HA goes down.
I suppose I also have the sunsynk dongle for that too so you know, redundancy and all that.
I also wanted to offload the processing away from my HA server hence solar-assistant, and who doesn't like 2 sec updates 😅
I'm running a huawei with a smart dongle, don't need installer credentials for the things you're likely to do (monitoring, setting battery TOU/charge levels). The plugin linked above is great.
Why did you need the dongle if the inverter already has Wi-Fi and is already connected to your network? I couldn’t figure this bit out. It works for me perfectly well without an additional dongle
Is the dongle like some additional layer of administration that sits in front of the inverter?
I couldn't get it working with HA with the regular dongle at the time, but the smart one worked for me, so that's where I am.
Hi,
Have my solis setup with home assistant solarman but every so often I get a spurious reading which messes the data. Before I start digging into code, anyone know where the data is stored in sql so I can use to try extract the data / debug the reading. Running mysql as my backend.
Yup I remember having to do this nonsense every now and then due to Solis - go to dev tools --> statistics and click on your battery used sensor, go to 11:00 am or wherever that spike is and zero it out.
I have this randomly with one or two sensors in HA. I was planning on using a outlier filter to prevent those values from being recorded.
Edit: Another option here:
Thanks,
I've nearly run out of things to do with my HA ( only konnected / HKC left ), will look at this :-)
Folks here might be interested in the new power card I created for Home Assistant: https://community.home-assistant.io/t/yet-another-power-card/602623
Going to rob this for sure but I'd seriously ask the horse why he's using 3kw of power 🤣
Closest MDI gets to stables unfortunately! Mind you 3kW is 4HP so there's some serious work going on down there.
I’m looking at integrating my solar installation when it arrives into home assistant. Many thanks to everyone for posting advice and I’m going to spend the next month or so reading through the whole thread.
I have started with influxdb and grafana and am currently playing around with downloading ESB Network data from my smart meter.
I also aim to set up some sort of backup plan as I’d hate to lose months or more of data due to my old hp microserver dying.
I suppose I’m wondering if there is much point in going too far with my current (sorry about the pun) endeavours with the grid feed as the inverter should give me the grid usage once I get installed.
I don’t think there is any limit to the time period of data you can download from the ESB portal.
Once you get you system up and running your inverter will give you all this info; and at least mine seems to retain the most granular data going back all the way to when I installed in Feb. Even if you did a manual download of this data and the ESB data once a year just incase I think you would be covered.
I recently added a heated towel rail as a second output on my Eddi. This meant that the internal CT power figure that I previously used for my hot water graph was no longer accurate (as it didn't distinguish between power being sent to immersion element or to towel rail).
To resolve, I've filed a PR against the myenergi HA integration to expose the currently active heater as a sensor. Hopefully will be merged and released soon. With a little bit of templating, I've got two new power sensors, one for each Eddi output.
I'll swap you some spanner brain cells for some tech brain cells 😂
Possible work around, although it would possibly need the relay board to expose the settings.
Turn on relay 1 when heating the towel rail and use that for switching your energy meter.
Would that work as the output from the Eddi uses varsine, so a type of frequency modulation?
The relay switching is just for the home assistant automation
Eg if relay 1 is on it is heating the towel rail
If relay 1 is off heating hot water
Obviously you'd need to configure the eddi to turn on relay 1 when heating the towel rail..
Just a work around, but if it was exposed in the API would be the better option.
Oh I get you - I forgot that the Eddi also comes with an optional relay board.
Cheapest place to order this relay board?
Some of the electrical wholesalers have the board at 41 EUR EX VAT.
You can always rely on Graeme for an outside the box solution. 🙂 I don't have a relay board unfortunately.
The active heater field is already exposed through both the API and pymyenergi so fairly straight forward PR thankfully.
You could also possibly slap another CT on a spare input on the Eddi and use that to monitor some arbitrary load.
When it's after hours and have a bit left to finish you work with what you've got.
"There's nothing more permanent than a temporary fix"
I have used many PIs over many years. they always come acrashing eventually. SSD and UPS will vastly reduce chance of OS corruption
can also make OS partion read only (via rasbi config) and store data elsewhere (can be a bit of a pain remapping DBs etc for applications) - although for the couple years I used this feature it caused a crash after a certain amount of time - maybe fixed in later versions of OS
I went with an ancient laptop in the end (more processing power and inbuilt UPS) and anything that needs IO comes from wemos d1 or the likes via micropython
Still trying to find a suitable UPS for my NUC, any recommendations?
Did I post this here or elsewhere?
Would that cover it off - not sure on how the NUC is powered?
A better option might be an AC UPS - APC have one - but it's likely to be pretty simplistic/devoid of features at that price-point:
oh that's nice. This is the NUC I have https://www.amazon.co.uk/dp/B0B13YLKKZ/ref=pe_27063361_487055811_TE_dp_4?th=1 looks like it'll do the trick all right.
thanks - since ive added the SSD and pi juice hat have had no issues... couple of months now..
The UPS question is a tricky one. If you just want the machine to not die on a power cut, don't buy a NUC or Pi, use a cheap or old laptop. Also has the advantage of easy GUI usage if it goes arseways.
If you want to keep your monitoring etc... alive during a power cut, a NUC or Pi plus a UPS that keeps your router/switches alive is a good way to go.
