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NREL / bifacial_radiance

Toolkit for working with RADIANCE for the ray-trace modeling of Bifacial Photovoltaics
https://bifacial-radiance.readthedocs.io
BSD 3-Clause "New" or "Revised" License
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Using tilted radiation with 1 min resolution as the input #465

Closed alisohani23 closed 1 year ago

alisohani23 commented 1 year ago

Hello everyone and thank you for reading my question.

I have the data on the tilted surface, as well as the temperature values for modules. I have two questions:

  1. Is this possible to use them as the input for modelings? I mean instead of TMY data like dhi, dni, and so on?
  2. Could I have the simulation with the resolution of 1 minutes instead of 1 hour, which is default of bifacial_radiance?

Thanks again! Kindest regards, Ali

shirubana commented 1 year ago

This issue was addressed by email, but copying the answers in case it helps further users:

  1. The resolution is whatever you pass on your weather file, but you have to use gendaylit or gendaylit1axis. The gencumsky or gencumsky1axis glob up the modeling into 1 simulation (fixed tilt) or as many tracker angles as you want (so it calculates all of the timestamps you passed where the tracker is at X angle and models that, and does the same for the next tracker angles).

I am confused on what you want to model. It seems you have Plane of Array (POA) data from your description, so the next step in a model process would be for you to model performance data ~ we use PVlib to calculate our performance models so I would point you directly to using that. However if what you want is to decomposition the POA into weather, so then you can raytrace, I would again point you to pvlib . Once you go back to weather then you can model the POA and see if it matches your original measurements.