Inspired by this video:
I received some 235W panels for very cheap from a coworker who purchased a pallet of them from SanTan (had extras he needed to get rid of) and I wanted to mount them for as little cost as possible just to get something up and going. I was able to get (basically) unlimited pallets for free from a neighboring business which is good because I needed four pallets per panel (three pallets to make the triangle shape and an additional pallet for the base to raise it up high enough so the panel didn't touch the ground). In DavidPoz's video, he aligns the pallet structures and then uses metal bars to mount the panels. Instead, I used Z brackets to mount the panels directly to the wood on the front-facing pallet (in the photos, the second from the left is not mounted to the pallet yet, but I have since done that). I don't believe the angle is anywhere near optimal for where I live in southern USA, but for a total cost of $17.99 for a 16-pack of Z brackets (enough for four panels) and about $10 for a box of 4" deck screws to hold everything together, I can't complain. So far over the last few months it has held up to very strong winds and plenty of rain. I can't imagine the pallets will last nearly as long as a "proper" DIY wood mount made out of normal pressure treated 2x4s, but I can just get more pallets for free in the future if I need to rebuild one or two anyways. The Z brackets I purchased are not rated for panels as large as mine, but I will keep a close eye on it to see if any brackets start to bend or feel loose.
I think if the Z brackets look good after a few more months I am going to get two more pallets per panel to stack them up a little higher so the bottom of the panels aren't so close to the ground. I am also planning on putting thick landscape fabric under the panels with a very thin layer of mulch to prevent grass/weeds from growing up through the pallets and behind the panels.
I received some 235W panels for very cheap from a coworker who purchased a pallet of them from SanTan (had extras he needed to get rid of) and I wanted to mount them for as little cost as possible just to get something up and going. I was able to get (basically) unlimited pallets for free from a neighboring business which is good because I needed four pallets per panel (three pallets to make the triangle shape and an additional pallet for the base to raise it up high enough so the panel didn't touch the ground). In DavidPoz's video, he aligns the pallet structures and then uses metal bars to mount the panels. Instead, I used Z brackets to mount the panels directly to the wood on the front-facing pallet (in the photos, the second from the left is not mounted to the pallet yet, but I have since done that). I don't believe the angle is anywhere near optimal for where I live in southern USA, but for a total cost of $17.99 for a 16-pack of Z brackets (enough for four panels) and about $10 for a box of 4" deck screws to hold everything together, I can't complain. So far over the last few months it has held up to very strong winds and plenty of rain. I can't imagine the pallets will last nearly as long as a "proper" DIY wood mount made out of normal pressure treated 2x4s, but I can just get more pallets for free in the future if I need to rebuild one or two anyways. The Z brackets I purchased are not rated for panels as large as mine, but I will keep a close eye on it to see if any brackets start to bend or feel loose.
I think if the Z brackets look good after a few more months I am going to get two more pallets per panel to stack them up a little higher so the bottom of the panels aren't so close to the ground. I am also planning on putting thick landscape fabric under the panels with a very thin layer of mulch to prevent grass/weeds from growing up through the pallets and behind the panels.