Interpretation of solar power in HA Energy panel

[captSL]

Hello,

can someone help me a bit with the interpretation of the solar production chart in the bundled HA energy panel?

The solid line is clear to me: it shows the solar power over the last 24h, but what is the dotted "yesterday" line showing? It cannot be the solar power 24h ago because the peak here on the right would be long after sunset.

Can anyone help?

Thanks in advance,
Thorsten

[dmellok]

Thanks for asking, because that chart was wrong rather than unclear. The dotted line is meant to be the same sensor over the previous day, but the widget was binning Home Assistant's history by sample count instead of by time. A solar sensor sits at 0 W all night and produces almost no samples then, so the night got squeezed to nothing and the split between "yesterday" and "today" fell at an arbitrary point. That is why the ghost peak turned up after sunset.

Fixed in 0.432.4 (pushed just now, on main): both lines are now calendar days in your panel's timezone, midnight to midnight in half-hour slots, so the two sun peaks line up and today's line stops at the current time. If it still looks off after updating, a screenshot here would help.

[captSL]

Now we have a new situation:

The yesterday line seems to show the 24h span now but it breaks at the current time-24h and only shows a straight line until the end of this day. But the line for the current day now just shows a straight line based on the current solar power.

I think it would make sense to show yesterdays line completely and keep today's graph cut at the current time as it is now, but of course as a graph and not only a straight line.

[dmellok]

Thanks, that screenshot pinned it down. The chart was only receiving half the history: Tesserae asked Home Assistant for the last 48 hours but didn't give an end time, and HA then stops one day after the start. So "yesterday" really ended at this time yesterday and today had no data at all, which is why both lines went flat. Fixed in 0.435.1 (on main now). Yesterday's line should run the full day and today's should follow your actual solar output up to now. If it still looks off, another screenshot would help.

[captSL]

Looks correct now!

Thanks for your quick help!