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Thanks! You're correct. On the roof I used 10ga PV cable (+,-) and 6ga solid copper for ground. Then at the junction box I have terminals where I switch to run three 10ga THHN conductors (+,-,G). 1/2" EMT conduit is used in the attic.

Thanks! I gathered a few more images. Enjoy! Connection to the main service panel Getting the mounts down. I did the re-roof DIY as well a few weeks ago. Mounted the inverter inside the garage. To keep it cool. Attic fun... Junction box from the roof to the attic Rails up! Really I...

Hi all, I've been lurking for some time and finally got the time to build my system. Details of my installation (work in progress) I'm trying to document the whole process and create some calculators on my site to make calculating things like return on investment and correcting string size...