Today's cost from Energy-sources-table as sensor

Configuration
1

Rather than using the new Energy dashboard, I would like to display today’s cost (as presented in the energy-sources-table card) in a separate lovelace view. I have tried to setup a new template sensor based on the autogenerated “sensor._cost” but w/o success.

template:
  - sensor:
    - name: "Todays cost"
      unit_of_measurement: "EUR"
      device_class: monetary
      state_class: total
      state: "{{ states('sensor.<autogenerated entity>_cost') }}"

Is a new sensor the way to go here, and in that case what would it look like? Perhaps there is another, better method to get this value?

2

Why do you create a new sensor that shows the state of the existing sensor? You can just use the existing sensor in your lovelace view.

3

It was my noobie solution to the problem that the _cost state goes to zero upon every restart of HA, so in order to track today’s cost I tried to accumulate sensor values over today. Great if I could access this value directly by _cost[ NOW ] - _cost[period start time] or similar. Is that possible?

Many thanks

4

Hi, I use this to get all sources consumption price (snippet taken from Dev tools):

{% set ns = namespace(states=[]) %}
{% for s in states.sensor %}{% if  s.object_id.endswith('_cost') %}
{% set ns.states = ns.states + [ s.state | float(default=0) ] %}
{% endif %}
{% endfor %}
{{ ns.states | sum | round(2,default=0)}}

It works OK as template sensor but does not persist HA reboots :frowning:
Tried to add state_class: total_increasing to all _cost sensors but last_reset indicates last restart time/date and result is of course ZERO
Is there a way to make a sensor which value will survive reboots?
Best, JR