diy solar

diy solar

Deciding on placement of Combiners and skip some MC-2's

nscottsdale

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Aug 26, 2021
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Please Critique.. I have a 3.2k sqft red iron steel building stand alone shop and am putting the panels on that steel roof. The DIY off grid is permitted and will be inspected.

I prefer the combiners be mounted inside near the inverters.

On the roof i'm thinking a junction box and the terminal block using a wire gland so that from the junction box to the panels one end is mc2 and the other is direct into the terminal block terminating the PV wire,

Then #10 THWN-2 through EMT conduit into the interior of my shop.. where i want to mount the combiners.

At the combiners i was going to delete the MC2's and terminate directly into the terminal blocks inside the combiners.

What do you guys/gals think?

[ ] On the roof should the PV have MC2 at the solar AND junction box end? ( i could repurpose the ones off the Combiners)

[ ] Placement of combiners inside near the inverters

[ ] Direct wire into combiner instead of using the MC2's





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