Quatt heat pump integration

The API now exposes power information. Unfortunately it’s only instant power (powerInput). I’d love to see statistics about kWh. But I guess there are ways to compute that from instant power. After reading a bit, it seems people have been able to calculate kWh from a W sensor using the Riemman sum integral:

  "hp1": {
    "modbusSlaveId": 1,
    "getMainWorkingMode": 0,
    "temperatureOutside": 15.35,
    "temperatureWaterIn": 16.27,
    "temperatureWaterOut": 16.45,
    "powerInput": 5.150232,
    "power": 0,
    "silentModeStatus": false,
    "limitedByCop": false
  }

@mbotje this would be a nice to have: kWh calculation from the powerInput W sensor to track power consumption.

I believe I can confidently confirm that “power” is the heat power output, similar to how @krizzziz calculated his Quatt CiC Heatpower. The values are very close to each other. And power input is electrical power used instantly.

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