Dear,
Your solar output for May has decreased for winter period. I am interested to know about the app or software to view your solar power generation statistics. I want to use this app or software in my country solar system. Solar systems produce less during winter and some days during monsoons. Still your stats seem to have good solar efficiency. Good luck to you.
This is the Telsa app that you get with a tesla powerwall, its ok but i hear there are better apps that show you what each individual panel is doing.
yeah Winter is Winter and until i can change the weather myself :)
I will try and find that app and let you know