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IntegraRack: Ground Mount with Epoxy Ground Stakes and Ballast Options

I’m thinking about augering 3’ deep holes and setting 1&5/8” unistrut into holes filled with concrete. Mount my 450w bi-facial panels horizontal about 30” above grade. Support each panel on underside with unistrut connected to each vertical. I have lots of 20’ pieces of strut purchased from Craigslist in 2021. 3 - 3600watt rows spaced 50’ apart and facing east/west and also use as fencing for my chicken operation. Then one 3600watt section mounted at angle facing south.
I would double up the strut back to back for at least 2' below ground and 2' or more above ground.
 
Look at what @shadowmaker did gluing three 700W panels into a 2.1kW assembly and then mounting them between telephone poles.
Only one year experience so far with some ~29m/s (65MPH) direct hit winds so it's far too early to say how good or bad my setup is. CCA treated poles were "free" and still got plenty of them. No problems so far though.

It's a big sail. 2,9m x 4m, so over 11m2 while reaching 5m from the ground.
first panels.jpg

ready back.jpg
 
It would never be cost effective but in an ideal world maybe a method to harvest that potential sail energy by having the posts levered at the ground, and take advantage of the back and forth movement upto certain angle limits you set via hydraulic rams. Sorta likes tidal wave generator but in the air.
 
I watched a YouTube video with your power racks. (Unplugged Texan). He needed to use plastic extentions for his panels. Do these extentions come with each power rack?

Your website doesn’t mention them, nor does any of your instructions on your site. At which point would you need the extentions? (Panel width)
Great catch, @Nan_wpg. We're behind with our instructional documents. That extension piece is what we call a Module Size Adapter, and it does what it sounds like it does. For panels below 39.8 in wide (which would be the "height" dimension once it's turned landsape), that piece is not necessary. Using that piece allows for panels up to 41.3in wide.

We always like to know which modules a customer is using so we can confirm fit ourselves. But the adapter piece is included in the price of the PowerRack, so we include it when needed for no additional cost.
 
Just a thought, cause I have no idea… the power racks are black, and full of sand. Would they be a lot hotter than a typical racking system? Not a lot of air movement or wind under the panels since they are resting on the tubs. Plus the sand /earth would retain heat?
 
Looked through this thread, glad I found it! I've been considering what it would take to make use of my brushy hillside behind my home.. the convenient thing is, it's already on a roof-angle type of slope, probably 25-30 degrees. I was considering the Brightmount, but... maybe that's overkill? Literally, just need 2 long rails, with 4 posts in the ground, and maybe some in-between brackets to get the spacing right. 3 feet off the ground is probably good. I've look around, and all I see are mostly expensive kits that are somewhat overkill for me. 2 of these would be enough for me, only need 8 panels. Thoughts?

Hillside-panels.jpg
There is one called "Eco-Worthy" but looks like it's just for smaller panels. Eco-Worthy Brackets
 
Looked through this thread, glad I found it! I've been considering what it would take to make use of my brushy hillside behind my home.. the convenient thing is, it's already on a roof-angle type of slope, probably 25-30 degrees. I was considering the Brightmount, but... maybe that's overkill? Literally, just need 2 long rails, with 4 posts in the ground, and maybe some in-between brackets to get the spacing right. 3 feet off the ground is probably good. I've look around, and all I see are mostly expensive kits that are somewhat overkill for me. 2 of these would be enough for me, only need 8 panels. Thoughts?

View attachment 215615
There is one called "Eco-Worthy" but looks like it's just for smaller panels. Eco-Worthy Brackets

Thanks for that. It’s on my radar now.

I’m thinking (and might work for you as well?) of putting down some 2 x 6’s on the ground, then mount the eco worthy to them. I’d need 2 kits for 4 panels. I might want to add a piece of metal for bracing to prevent,side to side “racking”. All that’s missing from eco is the grounding hardware
 
Thanks for that. It’s on my radar now.

I’m thinking (and might work for you as well?) of putting down some 2 x 6’s on the ground, then mount the eco worthy to them. I’d need 2 kits for 4 panels. I might want to add a piece of metal for bracing to prevent,side to side “racking”. All that’s missing from eco is the grounding hardware
Yeah, that's the thing for me, it's just not long enough, I'd want to use 40" wide panels as well. I'm considering just sourcing some parts from Amazon for the footers and rotating joints, then maybe Home Depot has the U-channel. OR, if you just use everything in their kit except the horizontal U-channel, maybe HD or Lowes has a similar U channel in longer pieces, then you can space it out further, and maybe fit a 3rd, or even a 4th on there! I think ideally, this is as basic and simple as I've found. It's actually perfect, because it will work on a slope as well. For me, I'd just dig post holes and concrete them.
 
For anyone who is still looking around and considering your options for ground mount. Consider just using standard racking rails, and attaching them to your posts as you see fit. For example, IronRidge sells a 168" to a 216" rail, ranging from $35 - $55 per rail depending on the retailer and size. If you have 4 posts in the ground, metal or wood attached to concrete however you want, you simply attach 2 parallel rails to 2 posts, and suspend the panels between them with regular panel bolt downs. You can add supporting brackets between them if needed. The IronRidge rails are attached to your posts with a slight tilt angle for the panels, so you'll need some type of hinge or slight bend to the part that attaches to the posts, and then attaches to the rails. https://www.ironridge.com/component/xr-rails/

Pricing out 2 arrays with spacing for 5 panels each. Including all the bits and bobs, it costs around $450. Alternatives are the BrightMount type systems. But with shipping fees, and the fact that I can pretty easily take advantage of the slope behind me with a custom setup, it just makes sense to put my own posts in and use the IronRidge rails. Happy to include any links for parts for those who are curious.
 
Very nice! And simple.

I wish someone had these corner brackets with different angles so we could have a 30 degree wooden solar mount! How cool would that be. Would take minutes to throw that together.
Albeit a little expensive, but exactly what you were looking for. I'm actually looking into to building out a new array using these style brackets. They seem robust and a quick simple way to build a structure.

 
Current Connected is sold out of these and not ETA for in-stock. I will never ever again buy an EG4 Brightmount. So many problems with 6x6 posts splitting (Even pre-drilled btw) and now problems with having to purchase the EG4 extender kit that should have come with the array to begin with. My new panels do not fit so I had to stop my project, order these other components from Signature Solar and wait to drive back to my ranch and go from there. SMH.
 
Current Connected is sold out of these and not ETA for in-stock. I will never ever again buy an EG4 Brightmount. So many problems with 6x6 posts splitting (Even pre-drilled btw) and now problems with having to purchase the EG4 extender kit that should have come with the array to begin with. My new panels do not fit so I had to stop my project, order these other components from Signature Solar and wait to drive back to my ranch and go from there. SMH.
No way!!!! Can you post more photos of the splitting? What wind speeds have you had?
 
No way!!!! Can you post more photos of the splitting? What wind speeds have you had?
This installation is in Northern AZ and wind speeds gusted up to 45 or so but from the south which is the direction they are facing. Pics may not show the splits but here they are. IMG_2711.jpegIMG_1068.jpeg
 
I have 4 Brightmounts mounted on 6x6 posts (no concrete) and have not had an issue. I had to use the extension but I looked at the manual before ordering to make sure my panels would fit first.
Mine are only 2' out of the ground so that is a big difference. We just a strong storm with gusts of 60 and quarter size hail.
 
This installation is in Northern AZ and wind speeds gusted up to 45 or so but from the south which is the direction they are facing. Pics may not show the splits but here they are. View attachment 218463View attachment 218464
Ohhh yeah that will do it. Could put cross beam and drill into it perpendicular. Or you could just buy the Integra rack and do it in like an hour
 
I have 4 Brightmounts mounted on 6x6 posts (no concrete) and have not had an issue. I had to use the extension but I looked at the manual before ordering to make sure my panels would fit first.
Good point, I read the manual as well and the new panels fit if you do not include the bracket space between each panel LOL. Oops!
 
Ohhh yeah that will do it. Could put cross beam and drill into it perpendicular. Or you could just buy the Integra rack and do it in like an hour
I am getting an Integra rack next and that will solve some of my other issues. I need to fence it in because the cows stomp on everything and rub everything they can get to and would knock them down if on the ground. I just need Current Connected to get them back in stock. I will use the 275g totes for ballast.
 
Just thinking out loud (and not an expert on manufacturing, etc) but looking at the Brightmount, and the integra, shouldn’t the imtegra be cheaper? It uses less metal. The brightmount has the top and bottom rails, whereas integra seems to use the solar panels for (lateral?) strength?

Any engineering types on these forums….. would the integra be less stable than the Brightmount?
I wish an engineer would weigh in on this. Making the panel an integral part of the structure (Integra) seems a little scary. If it weren't for that concern, the system might be ideal for me - pricey (IMO) as it is.
 
I’m not sure I’m seeing much of an advantage with the Brightmount over sourcing a few parts from Amazon and combining that with the IronRidge rails, which have a splicing bar to easily extend it. Essentially you just need to take care of the posts and the cross brackets, all doable with 1 5/8 strut channel from Home Depot.
 
Brightmounts are decent but you cant even buy one right now... SS says pre order for mid July. Seems crazy to wait 6 weeks for something so simple.
They gotta get that figured out.

I think IntegraRack is gonna kick butt if they can deliver.
 
So going by current comments, people really just want the cheapest possible rack. Is there anything else you guys care about?

And clearance for snow and weedwhacker
I agree with others... total cost of ownership has to be looked at. They need to be high enough off the ground to mow/weedwack under... and in a perfect world moveable like with a lawn tractor. I put a BrightMount on 2, 16Ft 6X6 with 4X6 cross braces (48 inches). Throw on some 12 inch wheels from something like a Tractor Supply... and you can reposition them or take them inside like in my case (Florida) for Hurricanes. Assuming you have a large shop that's properly wind rated (in my case I do). This wasn't a cheap option... but I like it well enough I'm planning to do two more... unless something else better comes along very soon. In my case I can just move it with loader forks on my tractor, but not everyone will have that, and the wheels might be necessary. Not the cheapest, but offers lots of utility. Yes I could get a wind rated mount, but such things make me chuckle, and indicates people have no experience with real weather... real hurricane's don't just have wind, but lots of debris which has a tendency to break glass... real life, exceeds lab testing in my experience. Just saying, and I unfortunately have been on several dates with those swirlbirds...
 

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I agree with others... total cost of ownership has to be looked at. They need to be high enough off the ground to mow/weedwack under... and in a perfect world moveable like with a lawn tractor. I put a BrightMount on 2, 16Ft 6X6 with 4X6 cross braces (48 inches). Throw on some 12 inch wheels from something like a Tractor Supply... and you can reposition them or take them inside like in my case (Florida) for Hurricanes. Assuming you have a large shop that's properly wind rated (in my case I do). This wasn't a cheap option... but I like it well enough I'm planning to do two more... unless something else better comes along very soon. In my case I can just move it with loader forks on my tractor, but not everyone will have that, and the wheels might be necessary. Not the cheapest, but offers lots of utility. Yes I could get a wind rated mount, but such things make me chuckle, and indicates people have no experience with real weather... real hurricane's don't just have wind, but lots of debris which has a tendency to break glass... real life, exceeds lab testing in my experience. Just saying, and I unfortunately have been on several dates with those swirlbirds...

I ended up with Powerfield powerracks. Ground mount couldn’t be easier, or faster. We don’t have hurricanes but I certain I could have my 4 panels, and 8 powerracks dismantled in about 10 minutes.

Total,cost of ownership was simply the cost of the powerracks.

IMG_1794.jpeg
 

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