Template sensor kWh value jumps unexpectedly high

[petro]

@bjk2000

The orginal sensor has no “big jumps”

Uh, yes it does, it has multiple 200 to 400w jumps. And your riemann sum is most likely using the wrong equation which is leading to the increases.

Check out this post for details about riemann sum:

Calculating Watts / Kw and KWh

Make a template sensor for the W. You already have the equation and it’s written here enough. - platform: template sensors: power_watts: friendly_name: "Power Watts" unit_of_measurement: 'W' value_template: > {% set PF = state_attr(input_number.power_factor.state | int ) %} {% set V = state_attr('sensor.pow_voltage', 'V') %} {% set A = state_attr('sensor.measured_current', 'A') %} {{ PP * A * V }} Now, to properly cal…