Thanks - I'll have to study that a bit. And maybe even try it on a nice day to see how much difference there is. My panels are all roof mount, and the big ones are so heavy I have them mounted on the racks in pairs so they can be handled to adjust them up and down. I have to make the rear rack brackets to lower them more from where they are now. My thoughts are that maybe it's unnecessary to adjust them, being we probably have enough power anyway, and I wasn't sure how much difference it makes.
Edit: Yes, thanks for those links, guys. I read this one statement in one of the articles:
If your need for energy is highest in the winter, or the same throughout the year, you may want to just leave the tilt at the winter setting. Although you could get more energy during other seasons by adjusting the tilt, you will get enough energy without making any adjustment.
I suspect this is the case for us. We weren't short on power last summer and I have added both wind and solar capacity since then. I have kept building and adding on our power system for the worst case days. This is the first year ever that we have not had to run the generator for the entire month of March.
It appears that they take into account only the solar insolation, and don't factor the operating temperature of the panels into the figures they give as "optimum" for summer time angles. That's the part I'll have to try for myself to see how much difference it makes.
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Chris