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Energy Dashboard:

The problem

The Home Assistant Energy Dashboard does not show the entities created by ha_sonnenbatterie.

The reason

That's because the Sonnenbatterie integration doesn't provide any energy values (measured) in Wh or kWh. Instead it gives you sensor values for certain points in time in W, which is power.

Energy is power (consumption/production) by time and is measured in watt hours (Wh) or kilowatt hours (kWh).

Example:

Your fridge has a constant power draw of 100W. After one hour your fridge used 100W * 1h (= 100 Wh), after 24h that would the be a total energy consumption of 100W * 24 h == 2400 Wh == 2.4 kWh.

The solution

To make the values reported by the integration's sensors usable by the "Energy Dashboard" To get to these values you can use the "Riemann integral" which is an approximation of the used power by elapsed time (== energy).

Fortunately, home assistant has a tool for this: The "integration" integration

An example for the energy consumption, calculated over time from the power sensor of the sonnenbatterie:

- platform: integration
  source: sensor.sonnenbatterie_XXXXXX_meter_consumption_4_2_w_total
  name: PowerConsumption
  unit_prefix: k

This yaml creates a sensor for consumed energy named "PowerConsumption" with unit kWh and usable in energy-dashboard