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Hi

thanks again for the great forum. a quick Q, and i'm a real novice. on average, at peak sunny conditions, how much KW can I expect from 12 340W monochristaline panels, lined in 3 paralel blocks of 4? I know its dependent on the weather and position of the panels, but just want an average to estimate.

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4 hours ago, ebrahim said:

at peak sunny conditions, how much KW can I expect from 12 340W

Depending on the setup and hardware in use and taking into consideration the conversion losses ext, a peak of 3200Whp will be realistic. Sometimes higher and sometime lower, but in that region. (Peak as in just before 12 midday) 

It will start at a few watts as the sun rises and increase to peak production and then start decreasing till sun under. 

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For some useful info on solar panel performance, based on installation angle, orientation and your location, see https://www.pveducation.org/pvcdrom/properties-of-sunlight/solar-radiation-on-a-tilted-surface

Edit: This page is probably more useful - https://www.pveducation.org/pvcdrom/properties-of-sunlight/calculation-of-solar-insolation

 

Edited by NigelL
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Reading up allot on “what can be expected” from your PV array, there is a school of thought that says rather than worrying about peak production, rather design to match your load. 

What is your orientation of your 3 strings?

Will like to know what people think about east or west orientation rather than all north?

 

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