Aeon ZW095 Home Energy Meter (Gen 5) Drops from Network

When ever I have a power failure or unplug this HEM device it drops off the network. Once power is restored, the only solution so far as I know is, exclude it then re-include it. This would not be a huge deal if it werent for all the device names I have to rename within my configuration, groups and cutomization yaml files.
For example a name defined in any of my config files might be _aeotec_zw095_home_energy_meter_gen5_energy_4_
Once re-included this same device may become

I can not simply rename energy_7 back to energy_4 as HA will complain stating the latter is already defined.
My question is: How do I purge these old device names?