Voltage rise as temp drops

[schmism]

We talk about it a lot... but seeing it actually happen in person.
My 2s2p 345w 72cell panels usually run about 71-73v.
This morning its sunny and 10degF and they are running 87v

 

[MichaelK]

What's also cool to watch is "cloud lensing" when it occurs. While operating a 1000W array on a day with thin, wispy cloulds, I saw the array bump up to about 1300W for more than just a few seconds. I'm utterly thrilled whenever I see solar output reaching 90%. Seeing it reach 130% was especially thrilling!