Heat Pump Monitoring from HomeAssistant

TheMiddle36uug · 2023-02-08T12:16:27.616Z

Hello,

I’d like to share my heat pump data, and it seems that I already have most of the information available in HomeAssistant. I see it’s completely possible to get data from emoncms in to home assistant but is it possible to do so the other way around?

Thanks

borpin · 2023-02-08T13:50:50.598Z

TheMiddle36uug:

I see it’s completely possible to get data from emoncms in to home assistant but is it possible to do so the other way around?

Historically, not easily (and HA stores a limited amount of historical data.

Actively, I take the data and pass it to emoncms via the Node-RED addon.

image1392×764 96.6 KB

There is also the Emoncms node for Node-RED, but I’ve done it this way as I occasionally pull off the MQTT data elsewhere.

[edit]
The emoncms node will allow sending it to emoncms.org for the heatpump dashboard.

TheMiddle36uug · 2023-02-08T13:52:21.397Z

Hmm. Thanks. Glad to see it is possible, although I’ve never used the Node RED side of things.

borpin · 2023-02-08T14:00:41.163Z

The addon is really easy. There are native nodes to extract the data from HA and processing is all done in Javascript (if neded) - much of that can be done using nodes rather than functions. I just am a bit old school.

dMb · 2023-02-08T19:19:03.887Z

An alternative approach is to run a script on a regular basis (e.g. every minute) which:

Pulls the heatpump-related readings from the Home Assistant API
Pushes those readings as Inputs to the emoncms API

That’s effectively what I do, albeit sourcing the data from InfluxDB rather than Home Assistant.

Happy to share my Python script if that’s of interest.

borpin · 2023-02-08T19:44:38.254Z

Another way is to use MQTTStateStream. Easiest way, but not for too many topics.

Home Assistant

MQTT Statestream

Instructions on how to setup MQTT Statestream within Home Assistant.

glyn.hudson · 2023-02-08T21:28:51.805Z

Emoncms History HA component can be used to log data from HA to Emoncms:

Home Assistant

Emoncms History

Instructions on how to integrate Emoncms history into Home Assistant.

I use it myself, it’s simple and works very well.

TheMiddle36uug · 2023-02-09T10:08:55.315Z

Thanks, I’ll look in to this

TheMiddle36uug · 2023-02-09T12:23:54.784Z

I’ve configured HA to send:

Outside air temp,
Energy draw of ASHP (current consumption)
Hot water top
Hot water charging
Flow temp
Return temp
Room temp.

Will look at adding the solar pv/inverter stuff later. Thanks for this, working perfectly.

Thanks

borpin · 2023-02-22T22:57:14.561Z

9 posts were split to a new topic: HomeAssistant integration not sending to emoncms.org

borpin · 2023-03-09T11:43:03.987Z

Nick, can you confirm you used the HA Integraton to get the data from the Nibe HP?

Are you sending any instructions the other way?

TheMiddle36uug · 2023-03-09T13:52:50.303Z

Hi, yes that’s the case.

Nibe integration to HA and HA to EMONCMS

TheMiddle36uug · 2023-03-10T01:28:24.335Z

in terms of sending the other way, I think I’m setting the home/away/vacation mode based on the what status the security system is in, but not sure what that actually does to the ASHP though.

There’s a service for sending data/instructions to the AHSP with the integration, called ‘set parameter’

borpin · 2023-03-10T07:43:04.255Z

TheMiddle36uug:

in terms of sending the other way

Have you looked to see what entities the Integration creates?

You should be able to write to any Holding Register. Remember the ‘address’ is one less than the ‘ID’ for any register.

For my Komfovent MVHR I use a script to set the register value;

script:
  komfovent_write_temp_setpoint_normal:
    alias: Komfovent Write Temp Setpoint Normal
    fields:
      komfovent_temp_setpoint:
        name: Komfovent Temp Setpoint Value
        example: '195'
        description: Actual value is * 10; 19.5°C = 195
    sequence:
      - service: modbus.write_register
        data_template:
          hub: "Komfovent"
          address: 109
          unit: 1
          value: '{{ komfovent_temp_setpoint }}'
    mode: single