My power/energy entities (solar panels, consupmtion, etc etc) are really noisy, I do not care for the history of them besides what I see on the energy panel.
If I ignore them from the recorder, will that affect the Energy Dashboard? Or does it keeps their own DB for the information?
The noisiness is only stored for as long as the recorder purge days, which by default is only 7 days. If you keep that low, there's no problem. The long therm statistics only store hourly aggregates.