I’ve come across this awesome NZ thread in my search for an easy way to integrate my HRV system into Home Assistant. I saw both Ken and chimeranzl’s posts, but as a non-electrical person, I am a bit scared to touch the controller and power. There also isn’t any power sockets where the HRV panel currently is.
Is there an easy way to just retrieve the data via the RJ11 splitter? I am comfortable enough buying things from AliExpress, cobbling it together and coding away, just not very confident in playing with anything that needs mains power where I inadvertently cause a fire.
Hi @kaipara. My original plan was to reverse engineer the HRV protocol and keep the control panel intact. I based this on @chimeranzl findings. I did get the reading side of things working, but never managed the control. If all you need is to see what is going on, but have the HRV panel in control, this should work fine.
I have made public this unfinished attempt, sorry for the lack of documentation, you might have to read though the YAML file to figure things out.
Is Nabu Casa remote access down this afternoon?
Mine is showing
“Not connected. Trying to reconnect.”
I’ve tried logging out then back in and rebooting HAOS
5 minutes ago it was still not working for me.
I was just about to submit a ticket to Nabu Casa and opened HAOS with my remote access URL and it works again.
We have 2 EV’s each with an 8A and a 16A charger all controlled with simple automations and
16A Shelly Relays and 25A Shelly Relays.
They are switched on during “night rate times” and when there is “excess” solar power.
Don’t be enticed into an expensive charging setup if you don’t need it.
Both of our EV’s get about 100kms on the 8A chargers in the 10 hours of night rate power (200kms on 16A) and we never run out of juice when living at home.
When we go on a trip we top up at ChargeNet stations.
You can link the ChargeNet account with the Genesis home account and get the same rates
10c / kwh at night and 25c / kwh day
Compared to about 80c / kwh at most other public charging stations.
Totally agree on the suggestion of not getting enticed or expecting to have to spend a lot of money on a dedicated charger.
We also have two EV’s and using the chargers which came with the cars. One 8A in a normal wall outlet and one 16A in a caravan outlet.
One car has its own built in charging schedule system and the other is scheduled using a smart relay. To charge offpeak.
If your shopping around, also watch out for what hours and days are considered night/off peak.
Powershop for example, all of summer is off peak and during winter peak is only 3-4 hours around breakfast and dinner on weekdays with all weekends being off peak.
