[RE-wrenches] Raised up ground mounts

[Ray]

The problem I had with Snap N rack pipe systems is they really can't 
take any uplift; which is not a good thing in Haiti during a hurricane.  
Those little pinch screws just are not enough. I would look at other 
systems.  The one you built in Mynamar looks pretty good.

Ray Walters
Remote Solar
303 505-8760

On 9/24/18 1:07 PM, Eric Youngren wrote:
> Hi Jason,
>
> For the past few years I've been helping build mini-grids in rural 
> Myanmar, where flooding is a regular occurrence in many villages.
>
> For one village that floods every year, we specified reinforced 
> concrete posts under the feet of standard ground-mount racks, and also 
> to elevate the power house with batteries and electronics.    It works 
> well and was a good fit for that project.   See the attached photo.  
> They mixed the concrete on-site using locally available sand, gravel, 
> water and labor.
> Check out more photos here:
> https://www.dropbox.com/sh/tolscim2y09e671/AAAUuwLvfWL3X0iYH-WVgn8ma?dl=0
>
> For a big system here in the USA I would look at the SnapNrack series 
> 200, as others have suggested, set atop tall concrete posts.   The 
> vertical 1.5" galv pipe legs would go all the way from below grade to 
> the top as the steel reinforcing inside what are basically very tall 
> concrete footings.  I'd think 10 or 12" diameter round "sonotube" 
> forms set down below grade as much as the soil conditions 
> require/allow.  Use a concrete pumper truck to fill all the tubes with 
> concrete.    SnapNrack may have already done the engineering for this 
> type of thing...
>
>
>
>
>     On Thu, Sep 20, 2018 at 2:15 PM Jason Szumlanski
>     <jason at floridasolardesigngroup.com
>     <mailto:jason at floridasolardesigngroup.com>> wrote:
>
>         I wish! 180mph, Exposure Category D - about as bad as it gets
>         in the US. I don't think pole mount will work around here. We
>         need a really beefy structure. It's probably going to have to
>         be custom... and expensive...
>
>
>         On Thu, Sep 20, 2018 at 11:10 AM Lorenzo Ortiz
>         <lorenzo at cal-solar.com <mailto:lorenzo at cal-solar.com>> wrote:
>
>             We've used DPW also with good results. We design for 110
>             mph winds out here and, depending on how high you go, can
>             require some pretty beefy SCH80 8"-10"D pipe.
>             MT Solar might be something to look at too. They make
>             multi-pole mounts for larger arrays but can get a little
>             pricey.
>
>             Good luck!
>
>
>             On Thu, Sep 20, 2018 at 4:55 AM, Jason Szumlanski
>             <jason at floridasolardesigngroup.com
>             <mailto:jason at floridasolardesigngroup.com>> wrote:
>
>                 Any suggestions for ground mount racks where panels
>                 need to have the leading edge 6-8 feet above grade
>                 (due to flood level requirement)? Also, high wind
>                 area... 100kw system rating. Tilt can be as low as
>                 5-10%. We're getting into carport territory here, but
>                 I'm trying to keep the cost reasonable since it won't
>                 have a dual function like a carport or shade structure.
>
>                 Jason Szumlanski
>                 Florida Solar Design Group
>
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