Utility Meter with Fibaro Wall Plugs

I would like to see the hourly/daily/weekly/monthly power consumption of a couple Fibaro Wall Plugs, but I don’t get how to set up the utility meter. This is what I currently have for a single plug:

utility_meter:
  energy_pc:
    source: sensor.fibaro_system_fgwpe_f_wall_plug_gen5_power_7
    cycle: hourly

But the output doesn’t make much sense. It says “4,200W” for the last cycle (1 hour) although it only draws 50W. Am I using the correct sensor?

2019-12-29_14h15_33

How do I get a useful output in kWh for the given cycle? How can I combine multiple plugs, and how do I set the tariff?

No you are using a power sensor (W). You need to use an energy sensor (kWh).