[RE-wrenches] calculating low string voltage

[Kirk Herander]

I am in debate with a PE over calculation of low voltage of a series string
on a hot day. He insists that an arbitrary high cell temp is factored in,
not just ambient temperature. Could someone please give an accepted formula
for this calculation? Thanks. I cannot find a clear reference to low voltage
calculation on a hot day (but every reference material is clear on how to
calculate high voltage on a cold day).

 

Kirk Herander

VT Solar, LLC

dba Vermont Solar Engineering

NABCEPTM Certified installer Charter Member

NYSERDA-eligible Installer

VT RE Incentive Program Partner

 

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