Adding the ability to associate specific elements with a tag and split the total by the tags
For example putting all the A/C under one tag to look at the heating expanses together
You can either create a template or use an alternative graph like Sankey Chart Card
Or a plain sensor group. You can specify how to aggregate the different values of the entities.
The suggestions are not really relevant, it is a good ability to have to aggregate the homes consumption in different ways and group without using other tools/side groupings, I have many devices from a similar sort, why do we need to go to great efforts to simplify our view? Why not have different levels of breakdown?