Drake,
Sorry, but I'm the wrong one to ask. I guess I wasn't clear: I
haven't done any off-grid adjustable roof-mounted arrays in
recent years. DP&W Power-Fab was the best I found way back when.
Allan
Allan Sindelar
[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
www.positiveenergysolar.com
In 3/24/2012 8:19 AM, Drake wrote:
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
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