Ron
The Sol-Ark has two MPPT channels and has two separate landing spots for each
MPPT channels. Each landing pair needs matching strings. 8 AWG wire barely fits
so the Sol-Ark PV terminals so they may only be rated for 10AWG.
I’m assuming you have a ground array The most common stringing
I would say it’s likely okay, but to speak in the vernacular, “watch out
sucka”.
Vmp will be lower due to temperature coefficient, dirt on the panels and
degradation over time. But, the inverter likely wakes up above the minimum Vmp
as Voc has the voltage but the inverter can track below
Seems like heat is going to be a major player, a top of pole mount array might
keep the modules cool enough to keep the 7As running. Tight to a roof, and all
bets are off, imho.Chris Worcester chris@solarwindworks.com530-448-9692Sent
from my Samsung Galaxy s9.
Original message
The VOC will start the microinverter, but I would pair a 365W module with
the IQ7+. It depends on where you are and how.much clipping there might be
based on temp, orientation, etc. But, the IQ7+ is now in short supply, so
you might want to look at the IQ8+.
I have never had an issue with a
I'm concerned that a microinverter - module pair that has been specified
by a supplier may not work. The maximum power voltage is very close to
the minimum starting voltage. The Voc is adequately high.
An Aptos DNA-120-MF26-365W is paired with an Enphase IQ 7A
• Minimum start voltage of
Hi gang, let's take any further discussion of Wrench List qualifications
off-list, please email me directly with any questions or concerns.
First, this is not a NABCEP-only list. If I had to guess, less than half of you
have pro installer certifications. In fact, this list predates NABCEP and
Looking for one of these as a replacement. Please contact me off list if
you can help. Thanks.
--
*Kirk Herander / **kirkh@vermont.solar *
*Owner|Principal, VT Solar, LLC*
*Celebrating our 31st Anniversary 1991-2022!!*
*www.vermont.solar*
I believe that applies to all microinverters from the M215 to the IQ8. The
available power is additive as long as there is battery capacity and the
micro inverters are not off due to the battery being at full capacity. If
the battery is at full capacity, the IQ8 should still be able to supplement
Good Morning Wrenches,
I am working through the Enphase training for their battery system while
simultaneously designing a backup system. Cart is in front of the horse
just a bit!
Does anyone know if you are using an IQ8 roof top micro, does its output
capacity add to the battery output
Hello Ron,
I'll try to point you in the right direction here, but yes you want to move
forward cautiously. Good training is easily available all over the place
now. I will say that you can be an excellent and successful solar
installer these days without any experience with string inverters
I agree with an earlier response…isn’t this a NABCEP PV Installation
Professional-only forum? The original question is DC-string design 101. Jerry
is spot on for coldest temp adjustments, RSD considerations if required. But
selecting a home run wire for separate string inputs to the
Ron:
I apologize if I am underestimating your level of skill or experience.
Feel free to correct me if I am wrong. However from the extent of the
questions you are asking, it seems like some solar design and vocational
courses might be in order. Without a solid background, no one should be
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