To All,
Seen it first hand with existing Northeast offgrid clients that had old
pole mounts with lots of generator usage during the winter months. Added a
single 12 module DAT and generator usage was down to as little as twice in
the entire winter. Others usage was down to just a handful of times
Bill, Wrenches
In most cases space is always an issue, sure modules prices have dropped
but top of pole trackers have a place along with large ground mount
tracking systems. It will come down to economics of the ROI, 20 to 35% more
output for 10% more cost, yes yhere is an increased in maintaince c
I second this observation.
I now live again off grid in a narrow N-S canyon in south central Idaho. Having
limited ground space [thanks to county regs] & not wanting roof mounted arrays
to have to clear snow from, trackers VS. fix top of pole mounts enhance my
output & they reduced the # of
I agree with Bill & Allan on this, I worked on my first Zomeworks
tracker in '89. Trackers add quite a bit of cost and complication, and
if they have a failure, they can actually be worse than a fixed array.
The Array Tech trackers would table top in failure mode, which is not
good in the win
Hi Folks: I appreciate the input but I am looking for TYPES of trackers that
you may be selling (and yes, I told him about adding more & cheaper solar
modules than investing in a tracker, but it’s the customer’s decision).
Zomeworks is not what the client wants; I would prefer dual axis; the
Chris,
I've been using both All Earth Renewables (AER) and Array Tech. I really
like AER but the smallest they make is a 20 module rack. I use their 24
module (60 cell) rack with a 320 to 335 watt module in my offgrid projects.
One of the reasons I like AER is because of the GPS tracking, no senso
Chris--
We installed two 24-module AllEarth dual-axis trackers at the request of a
homeowner two years ago--"I like companies that are from Vermont."inspite of a
higher cost as compared to a ground mount equivalent w Krinner groundscrews.
You can buy either the tracker alone or complete kits. The
I like Array Tek and for offgrid. It is a waste to dual axis track. Less
is more! All you need is the array point at the sun with enough tilt to
shed snow. Again, Less is more. If it had a failure (and none of mine have)
it is still a fixed array until it is repaired.
Dave Angelini Offgrid
Solar
What am I missing here, Bill? If the tracker costs $10,000 (plus installation)
to carry 24 modules, that's $416 per module, which is more than the cost of the
modules themselves. I don't get the point of doing this. It almost sounds like
consumer vanity - "Folks do like to watch the slow dance o
Allan;
That's the same math I've done, and tracking off grid just doesn't
pencil much of the time There is software that can model tracking vs
fixed. If you run these calcs and pay attention to the critical winter
months, its just not there. Also even when tracking might be a
consideration,
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