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
<ja...@floridasolardesigngroup.com
<mailto:ja...@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
<lore...@cal-solar.com <mailto:lore...@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
<ja...@floridasolardesigngroup.com
<mailto:ja...@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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