Energy dashboard wrong cost

Energy
1

Hi all,

After kicking out my old electricity company i had to calculate my own prices. But for some reason the dashboard always calculates more than it should.

My price sensor is 3 sensor combined.

This sensor i just a fixed cost per kWh:

- platform: template
  sensors:
    fjordkraft_paslag:
      friendly_name: Fjordkraft påslag
      unit_of_measurement: "NOK/kWh"
      value_template: >
        0.039

Next sensor is the electricity price itself from the Nordpool integration:

image

And the last is also an amount charged per kWh:

image

Combinding all these sensors into one i made a template sensor like this:

- platform: template
  sensors:
    total_strompris_per_kwh:
      value_template: "{{ states('sensor.fjordkraft_paslag') | float + states('sensor.nordpool_kwh_oslo_nok_3_10_025') | float + states('sensor.forbruksledd_per_kwh') | float }}"
      friendly_name: Strømpris inkl nettleie og påslag
      unit_of_measurement: "NOK/kWh"

For me this looks okey:

image

image

Then for the energy dashboard i have done this:

image

But here the fun starts… When i look at the cost per day it just doesnt match at all…
This i all for today, as all the other pictures.

image
image938×136 4.46 KB

Based on these prices 1kWh today should cost me in average 51 NOK, and the average is 4.558 so far.
Is it my template sensor that combines 3 sensor? This was never an issue before when i used another sensor for pricing.