I have a custom dashboard where I use the energy-usage-graph card which I think should be the same as the one on the built-in energy dashboard. Sometimes it just has no data though. It will usually be fixed the next day, but the one on the built-in dashboard works fine.
- type: grid
cards:
- type: energy-usage-graph
layout_options:
grid_columns: full
grid_rows: auto
column_span: 3
Another bonus question: I'm not entirely sure which entity to use for my consumption. I have an "amsreader" that I plug directly into my electricity meter and it exposes a lot of different entities. The one I'm using right now puts a new full bar on the graph every hour, but idk if I can get an incrementally rising bar throughout the hour instead. I've included a picture of the entities :)