Allan,
I haven't had any off grid, adjustable roof mount systems in years,
but have one coming up. What is the best product these days?
Thanks,
Drake
At 03:40 PM 3/23/2012, you wrote:
William,
All of our off grid is residential. In general we never do ground
mount for off grid. With rare and specific exception we use pole-top
racking. This is simply because pole top racks hold the entire array
in balance over a single pivot, making seasonal adjustment easy for
one person. Ground mount puts the pivot at the bottom edge of an
array, requiring at least two people to adjust: one or more to lift
and one to loosen/tighten the leg sliders.
Knowing the depth of your professional competence, you know this
already, and this request is about a specific job. But most off-grid
Wrenches may be in the same case, and thus not able to easily answer
your question.
Having used UniRac a few times for adjustable roof/ground racking, I
certainly would recommend against their adjustable tilt legs. Too
easy for homeowners to loosen the pinch bolt too far and lose the
twist-nut. In years past (I haven't used it in recent years) DP&W
made good adjustable racking.
Allan
Allan Sindelar
<mailto:[email protected]>[email protected]
NABCEP Certified Photovoltaic Installer
NABCEP Certified Technical Sales Professional
New Mexico EE98J Journeyman Electrician
Positive Energy, Inc.
3201 Calle Marie
Santa Fe, New Mexico 87507
505 424-1112
<http://www.positiveenergysolar.com/>www.positiveenergysolar.com
On 3/23/2012 8:04 AM, Solarguy wrote:
Sunearth CompRail is an edge captive type railing that works great
when rear access is possible. Its positive steel to steel
attachment with SS bolts and threaded inserts is superior to Unirac
Sunframe with its sheet metal attachment screw mount.
<http://sunearthinc.com>http://sunearthinc.com
Jim Duncan
North Texas renewable Energy
<http://www.ntrei.com>www.ntrei.com
NABCEP PV 031310-57
TECL-27398
<mailto:[email protected]>[email protected]
817.917.0527
----------
-----Original Message-----
From:
<mailto:[email protected]>[email protected]
[mailto:[email protected]] On Behalf Of William Miller
Sent: Friday, March 23, 2012 2:21 AM
To: RE-wrenches
Subject: [RE-wrenches] Off-grid ground mount
Friends:
I am curious about what the rest of you are using for off-grid ground mount
racks. We need a tilt angle of 45 degrees.
Thanks in advance.
William Miller
Miller Solar
Voice :805-438-5600
email: <mailto:[email protected]>[email protected]
http://millersolar.com
License No. C-10-773985
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Drake Chamberlin
ATHENS ELECTRIC LLC
OH License 44810
CO license 3773
NABCEP Certified PV
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