Stuart
Guest
Contrary to popular belief, pv solar panels work more efficiently in cooler and sunnier weather.
External air temperature does not make the panels work better. Peak time of the year will be summer solstice time (Jun 21st) and any other time either side of that date will reduce the amount of sun exposure and thus your systems generating capacity.
The sun rises (6.48am) and sets later (7.26pm) at the moment so you’re potentially getting 4 hours less sun exposure time. With that said, if you do feel your system is not as it was, then I would recommend getting it assessed for potential issues: