> Unfortunately, solar panels get less efficient when hot,
Less efficient by what factor?
Less efficient by what factor?
That will depend heavily on local conditions, type of panel, etc.
Significant, but not devastating.
Would you say the same holds across months? Say, would cooler May have better production than hotter July? Or is July still ahead because of more sunshine hours, offsetting the hot inefficiencies?
Sometimes May beats July, sometimes it doesn't.
If you're interested, I have released all my panels' data at https://gitlab.com/edent/solar-data/
I see the pvoutput page didn't pick up some days in May and June 2020. I'm curious why, since I can see them on your .csv dumps.
It's usually given in the datasheet of the panel.