One more view on solar time history. My take is that there is a fair amount of variability, even if production is aggregated over months. The red line is monthly kWh production from my SolarCity / Tesla inverter. Blue is the same monthly data coming from my newish Sense that went into commission in April 2019 (I had an earlier one from late 2016 through 2019).
Pretty to see the one month in 2020 when my Sense was off the network.
Cleaned my solar panels on Saturday morning… Saw an immediate bump in my production…
I know each day is different, and it is very difficult to measure exactly how much more output you get after a cleaning, but this was pretty clear… My Saturday output beat every single day in the latter part of June (which are the longest days of the year)… And while I had days in June that almost perfect bell-curve solar production signatures, my Saturday immediately after my morning cleaning was not a perfect bell-curve signature… You could tell that there was some overcast and sub-performance…
If I had to put a number on it, I would say that my production increased by a bit over 10%…
How about comparing friday with sunday & monday morning?
Apart from cleaning the cooling via evaporation gives a temporary boost is my experience.
Yeah… It’s going to be hard to compare… Last week, including Friday, was pretty sunny… These last couple of days (Sun/Mon/Tues) have all been overcast… So it’s not going to be an apples-to-apples comparison…
That said, i agree with you…that very first day after cleaning does seem to get an unnatural bump…and probably due to the cooling of the panels…
