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PR corrected calculation (no PVSYST software related)?


JafferStroks
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Hi everybody,

I need to calculate the PR corrected for a PV plant ground installed and connected to the grid.

I have just T back (temperature measured at the back of the module) as input data.

My question is: do I need any other data to calculate the corrected PR? wind or Tamb?

Using the formula of NREL in order to obtain the PR corrected, if I consider the day as time frame, G at plan of array is given by the monitoring system,

Tcell typ-Tcell,i should be the difference between 25° and the daily average Tback.

The daily average Tback is a simple average or is it weighted on the irradiation?

Thank you very much

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On 8/26/2021 at 11:56 AM, JafferStroks said:

Hi everybody,

I need to calculate the PR corrected for a PV plant ground installed and connected to the grid.

I have just T back (temperature measured at the back of the module) as input data.

My question is: do I need any other data to calculate the corrected PR? wind or Tamb?

Using the formula of NREL in order to obtain the PR corrected, if I consider the day as time frame, G at plan of array is given by the monitoring system,

Tcell typ-Tcell,i should be the difference between 25° and the daily average Tback.

The daily average Tback is a simple average or is it weighted on the irradiation?

Thank you very much

Check this out 

if you look around the forum first mean searched the forum first you will get this post on pvsyst forum related to your issue where already an answer is posted by the community to solve this issue.

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