M

Markie Sparkie

I have taken the Voc, Isc and Irradiance measurements for my strings and entered these on my paperwork, but I do not know what values I am supposed to be entering for the Voc (STC) and Isc (STC) values in the Array Parameters section of my paperwork.

Looking at the same paperwork from another sparky I cannot see how he has got his figures.

Can anyone help, please?​
 
String Voc (STC) is panel Voc(STC) taken from manufacturer's data x no. of panels in string

String Isc (STC) = panel Isc (STC) from manufacturer's data
 
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The STC values will be stated in the literature for the panels. The Voc (STC) would then be multiplied by the number of panels in the string.

My Kinve's are:
Voc (STC): 37.3
Isc (STC): 8.78

So my string of 8 has: Voc(STC) = 298.4, while my string of 7 has Voc(STC) = 261.1.
Both strings have Isc (STC) = 8.78.
 
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Thank you both.

I thought that, but looking at the other guy's calculations, it just looked like he made them up. I wanted to double-check.

Thanks, again.
 
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Calculating Voc (STC) & Isc (STC) values
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Markie Sparkie,
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