Open source heat pump data

Labs
1

Afternoon! Not sure if this is the right place for this (please nudge me in the right direction if not!).

I’ve spent the last 7 or 8 years working in energy, specifically optimisation of energy assets (including heat pumps). I’m looking to start a few hobby projects in this area building some stuff I think could be useful here, but i’m missing open source heat pump data needed to do some fun data science on! Ideally i’d have half hourly (or less!) datasets of:

  • input power
  • output power (or instantaneous COP)
  • flow temperature
  • return temperature
  • isDefrost
  • any other relevant control status of the heat pump

Can anyone point me to this? Thanks, Tom

2

Additionally, if there is any information within the home with regards to room temperature that’d be great too, but not absolutely required.

3

I can see heatpumpmonitor have a lot of this but can’t see an easy download button. Probably being stupid. Would be good to discuss the Heat Demand Tool on here too; I think my stuff could feed into this quite neatly! Emoncms - app view

4

Would also be good to get flow rate and DHW status too!

5

Hello @goodcopbadcop

HeatpumpMonitor.org has an API that provides access to the underlying data, see: https://heatpumpmonitor.org/api-helper.

For the dashboard link that you shared, you can get a list of feeds used in the app with:
https://emoncms.org/app/getconfig?name=MyHeatpump&readkey=bbd1cd04728bd8c9f7acfb2ee51936d2

{
  "id": "4814",
  "userid": "47964",
  "app": "myheatpump",
  "name": "MyHeatpump",
  "public": "1",
  "config": {
    "heatpump_heat": "485961",
    "heatpump_heat_kwh": "485954",
    "heatpump_flowT": "485958",
    "heatpump_returnT": "485959",
    "heatpump_outsideT": "485953",
    "heatpump_roomT": "485955",
    "heatpump_flowrate": "485960",
    "heatpump_elec": "486066",
    "heatpump_elec_kwh": "507748",
    "start_date": "1708430415",
    "public": true,
    "heatpump_dhw": "507732",
    "enable_process_daily": true
  }

Then it’s possible to access say half hourly kWh consumption data with the emoncms.org feed API:

https://emoncms.org/feed/data.json?id=507748&start=27-02-2025Z00:00:00&end=28-02-2025Z00:00:00&interval=1800&average=0&timeformat=iso8601&skipmissing=0&limitinterval=0&delta=1&apikey=bbd1cd04728bd8c9f7acfb2ee51936d2

Result:

[
  [
    "2025-02-27T00:00:00+00:00",
    0.28759765625
  ],
  [
    "2025-02-27T00:30:00+00:00",
    0.28759765625
  ],
  [
    "2025-02-27T01:00:00+00:00",
    0.28662109375
  ],
  [
    "2025-02-27T01:30:00+00:00",
    0.287109375
  ],
  [
    "2025-02-27T02:00:00+00:00",
    0.2861328125
  ],
  [
    "2025-02-27T02:30:00+00:00",
    0.2861328125
  ],
  [
    "2025-02-27T03:00:00+00:00",
    0.28759765625
  ],
  [
    "2025-02-27T03:30:00+00:00",
    0.28564453125
  ],
  [
    "2025-02-27T04:00:00+00:00",
    0.28662109375
  ],
  [
    "2025-02-27T04:30:00+00:00",
    0.2861328125
  ],
  [
    "2025-02-27T05:00:00+00:00",
    0.28662109375
  ],
  [
    "2025-02-27T05:30:00+00:00",
    0.28564453125
  ],
  [
    "2025-02-27T06:00:00+00:00",
    0.2861328125
  ],
  [
    "2025-02-27T06:30:00+00:00",
    0.28564453125
  ],
  [
    "2025-02-27T07:00:00+00:00",
    0.28662109375
  ],
  [
    "2025-02-27T07:30:00+00:00",
    0.27587890625
  ],
  [
    "2025-02-27T08:00:00+00:00",
    0.27587890625
  ],
  [
    "2025-02-27T08:30:00+00:00",
    0.27587890625
  ],
  [
    "2025-02-27T09:00:00+00:00",
    0.27734375
  ],
  [
    "2025-02-27T09:30:00+00:00",
    0.27783203125
  ],
  [
    "2025-02-27T10:00:00+00:00",
    0.27783203125
  ],
  [
    "2025-02-27T10:30:00+00:00",
    0.26806640625
  ],
  [
    "2025-02-27T11:00:00+00:00",
    0.26123046875
  ],
  [
    "2025-02-27T11:30:00+00:00",
    0.26171875
  ],
  [
    "2025-02-27T12:00:00+00:00",
    0.25146484375
  ],
  [
    "2025-02-27T12:30:00+00:00",
    0.26123046875
  ],
  [
    "2025-02-27T13:00:00+00:00",
    0.650390625
  ],
  [
    "2025-02-27T13:30:00+00:00",
    0.7001953125
  ],
  [
    "2025-02-27T14:00:00+00:00",
    0.4208984375
  ],
  [
    "2025-02-27T14:30:00+00:00",
    0.275390625
  ],
  [
    "2025-02-27T15:00:00+00:00",
    0.26806640625
  ],
  [
    "2025-02-27T15:30:00+00:00",
    0.24609375
  ],
  [
    "2025-02-27T16:00:00+00:00",
    0.2490234375
  ],
  [
    "2025-02-27T16:30:00+00:00",
    0.25732421875
  ],
  [
    "2025-02-27T17:00:00+00:00",
    0.26220703125
  ],
  [
    "2025-02-27T17:30:00+00:00",
    0.263671875
  ],
  [
    "2025-02-27T18:00:00+00:00",
    0.267578125
  ],
  [
    "2025-02-27T18:30:00+00:00",
    0.27099609375
  ],
  [
    "2025-02-27T19:00:00+00:00",
    0.27783203125
  ],
  [
    "2025-02-27T19:30:00+00:00",
    0.27783203125
  ],
  [
    "2025-02-27T20:00:00+00:00",
    0.2783203125
  ],
  [
    "2025-02-27T20:30:00+00:00",
    0.27734375
  ],
  [
    "2025-02-27T21:00:00+00:00",
    0.2783203125
  ],
  [
    "2025-02-27T21:30:00+00:00",
    0.2861328125
  ],
  [
    "2025-02-27T22:00:00+00:00",
    0.28662109375
  ],
  [
    "2025-02-27T22:30:00+00:00",
    0.287109375
  ],
  [
    "2025-02-27T23:00:00+00:00",
    0.287109375
  ],
  [
    "2025-02-27T23:30:00+00:00",
    0.287109375
  ],
  [
    "2025-02-28T00:00:00+00:00",
    0.28564453125
  ]
]

You can access data all the way down to 10s data, if it’s recorded at that resolution.