For the next Home Assistant release, extensive adjustments to the energy dashboard are in the pipeline. In addition to the introduction of power sources, the cards will be divided into an overview and certain detailed views:

In order for the power sources to be displayed, the Energy dashboard requires additional power sensors (Power). In contrast to the energy sensors, only one sensor is used for supply and feed-in: Positive values mean that power is being drawn from the grid, negative values that power is being fed into the grid.

The power sensors for the PV modules and home storage units are hidden in the individual areas:

Sources:

Power sources chart: https://github.com//home-assistant/frontend/pull/27501