Using cost enteties to specific energy devices

[dowermyr]

Today we can use a cast entity to calculate cost of the house consumption.
I would like to do this also with specific devices. With this feature u can i.e see the total cost of charging your EV or any other device.

[teachingbirds (Isabella Gross Alström)]

Energy: Cost for the individual devices

We have a nice setting for the cost calculation on the main energy consumption entities. But we are missing the same option for the individual devices. It is easy to add a template sensor to calculate cost but this will be on the lovelace UI not on Energy dashboard. Adding a cost calculation like in the main energy consumption would be much appreciated.