Issues with integrating power to get energy

[bilogic]

Kind of a continuation from #833

I did this and it looks correct to me, I could add it as a consumption entity and the numbers look correct

sensor:
  - platform: integration
    source: sensor.pj_1103_clamp_power_meter_power
    name: energy_spent
    unit_prefix: k
    round: 2

I managed to add another of those power monitoring switches (BSD29) into via Tuya Local and added the code below, but the numbers don't look right, it is a diagonal line going up all the way, what am I missing?

  - platform: integration
    source: sensor.energy_monitoring_smartplug_power
    name: energy_spent_pc
    unit_prefix: k
    round: 2

[make-all]

A diagonal line seems correct for a constant power draw device. Presumably the more interesting charts for energy are the daily or hourly charts rather than total energy over time.

[bilogic]

I'm looking for the one that draws a flat line across, kWh
I mean it's easier to tell if the socket is using more or less energy when the norm is a flat line, i.e. using the same amount of energy

Tasmota devices show that when added as individual devices, would you know how to get that?

[make-all]

That would be power (kW), not energy (kWh). Energy is expected to grow continuously over time, because once consumed it stays consumed.

[bilogic]

Could you help tell me what changes I need to make? I wasn't able to add this BSD29 into Monitor individual devices

[bilogic]

Perhaps forget everything I said earlier, since I have no idea what's really going on

1. The 2 in red box are from Tasmota, with PC Energy Total plugged between the wall and my PC
2. The other 2 outside the red box are the Tuya Local devices trying to measure the same

I mean, quite obviously I'm doing something wrong as they are way off the charts. Any idea?

[bilogic]

It appears that Monitor individual devices in HA's energy dashboard is looking for Energy Total, I suppose that could be gotten by integrating Power?

1. Is there a way to calculate Energy Total from Tuya Local?
2. Is there a reason why Power falls under diagnostics (instead of sensor) in Tuya Local?

[make-all]

Regarding the vastly different consumption between your Tasmota and Tuya-local devices, from the timing of your posts, it seems you had only just gotten the tuya-local ones into the energy dashboard, so they would have only had partial data. Now that a couple of days has passed, is the daily view still showing such a big difference, or have they settled down now to be the same?

The problem with Energy Total from Tuya devices is that it seems to be reset every hour (or more frequently for some devices), with the accumulation being handled in the Tuya Cloud. So it is not useable for the Home Assistant Energy dashboard, hence the need for setting up a Rieman Sum integration sensor on top of the power reading. It seems you have that working now, but for reference, it is now possible to set them up from the Helpers page on the Settings UI, which should avoid missing anything in the yaml config..

Power is showing up under diagnostics because it is a diagnostic sensor, not the main purpose of the device (a smart switch). It seems Tasmota does not mark any of its sensors or controls, so they are all showing up in the main Sensors and Controls sections. Being under diagnostics only affects whether it is available by default in voice assistants and auto-generated UIs, but you can always override that explicitly.