I might have. There was an earlier discussion that was more vague about temperatures and I thought more-or-less freezing was a concern for overvoltage. That is a possibility in October, especially with the factors J.P.M. mentioned being worked in. Then I found the MidNite Solar calculator which helped me get more specific about where the danger point really is. I was surprised to learn that point is roughly 10F with J.P.M.'s factors all at play, more like 5F or even less with those other factors not in play. Since it never gets down to 10F when I've got this up and running I'm fine.
Yup, unless a front moves through during the night. A couple of times a year it's colder at mid day than the prior night. It is definitely odd to see the sun come up and the temperature drop, but it does happen.
I have to say this whole process has been extremely interesting and educational for me. I've lived offgrid for about 10 years now, but I didn't design my home system. These conversations here have resulted in a system that appears to be sound and balanced, which is a far cry from my first design. I'm very thankful to have people helping kick the tires because a number of them fell off
Steve
Once the sun is up the panels get much warmer.
I have to say this whole process has been extremely interesting and educational for me. I've lived offgrid for about 10 years now, but I didn't design my home system. These conversations here have resulted in a system that appears to be sound and balanced, which is a far cry from my first design. I'm very thankful to have people helping kick the tires because a number of them fell off
Steve
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