I would highly recommend using proven equipment from the long term off
grid companies: Magnum, Midnite, Outback, Schneider, etc. and stick with
a DC coupled array and lead acid batteries for now. I just got back
from inspecting two Li+ off grid systems done by a GT dealer, and I saw
numerous issues that included the charge controllers not agreeing with
the BMS system, the BMS system monitoring having numerous programming
and connectivity issues, the battery overall being vastly undersized,
the manufacturer (Adara) dropping support for their battery, and the
customers being hopping mad. Most off grid folks own guns; not a good
combination to walk into.
My advice, is that if an installer hasn't lived off grid and/ or
dedicated their practice to off grid systems, they should stay out of it
and quit ruining peoples' lives. GT is usually never a life or death
matter, but Off grid can be, when they are snowed in with no fridge, no
water, no heat, and no communications. Reliability is goal #1,
Simplicity is #2.
Good Luck,
Ray Walters
Remote Solar
303 505-8760
On 9/7/18 11:03 AM, Kristopher Schmid wrote:
Wrenches,
I am trying to design a Pika off-grid system. The issue is that they
currently have no way to charge from a generator. Has anyone ever
installed one set up for zero grid export and connected the generator
to the grid input?
Would LG chem or another manufacturer be a better choice?
Thanks,
Kris
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