Allow customizing display name for energy device

[karwosts]

Proposed change

Allow for storing a custom display name with individual device consumptions for energy dashboard. This allows users for a cleaner and less cluttered dashboard, as entity names for energy devices often have terms like "Energy", "Consumption", "Daily", "Weekly", "Total", etc which are not relevant for the energy dashboard, but may still be wanted as part of the entity name when looking at it out of the context of energy dashboard.

Also space is at a premium for smaller/mobile devices, and the visual display can be improved with shorter names to minimize space consumption of the legend.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

Additional information

• This PR fixes or closes issue: fixes #

• This PR is related to issue or discussion:
  https://community.home-assistant.io/t/energy-custom-names-for-individual-devices/372943
  https://community.home-assistant.io/t/wth-can-t-i-change-name-on-energy-dashboard-monitor-individual-devices/472496
  https://community.home-assistant.io/t/to-have-the-ability-to-rename-in-energy-dashboard/503823
  https://community.home-assistant.io/t/rename-energys-individual-devices/378360
  https://community.home-assistant.io/t/wth-cant-i-still-not-change-source-names-for-energy-dashboard/470467
  https://community.home-assistant.io/t/detail-devices-energy-card-entity-friendly-name-labels/700475
  https://community.home-assistant.io/t/energy-dashboard-change-names/442989/8
  Friendly Name Energy Dashboard #20024
  add max_devices and name: option to Energy panel #19983
  Support renaming of "sources" shown in the Energy dashboard #18215

• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

[karwosts]

Backend: home-assistant/core#112834 (approved)

[piitaya]

Can't we only use the device name instead of adding a new name option?
However, the name can be useful for entity that are not in a device.

[karwosts]

Can't we only use the device name instead of adding a new name option? However, the name can be useful for entity that are not in a device.

I'm not confident that would work for every use case, given that the entity to device mapping is not user modifiable. For example someone could have a single smart electric panel device that has 20 entities for various consumptions.

[evlo]

Can't we only use the device name instead of adding a new name option? However, the name can be useful for entity that are not in a device.

I'm not confident that would work for every use case, given that the entity to device mapping is not user modifiable. For example someone could have a single smart electric panel device that has 20 entities for various consumptions.

Pro4pm shows 4 different consumptions and is one device in HA and it is very popular device in EU

another popular with 16 different consumptions for one device is emporia

Or maybe I misunderstood - mapping consumption measured by one device entity to another HA device would be nice option (if measured device exist in HA), but seems to be to be more system wide thing if that is to be implemented.

[BenJewell]

Is their a reason this feature was only implemented for device level energy monitors? I was hoping to use it for energy "Sources" monitors. Seems a little odd to have it for one and not the other.