niloofar.barekati Posted July 3, 2016 Share Posted July 3, 2016 HelloI want to import my measured meteorological data to PVsyst. I have in-plane (30°) irradiation data for my location, can I use them directly or I have to change them to horizontal ones? Link to comment Share on other sites More sharing options...
André Mermoud Posted July 5, 2016 Share Posted July 5, 2016 You can import POA values in PVsyst. PVsyst will use a retro-transposition model for recreating Horizontal global and diffuse values for use in the simulation. Please use "Database > Import ASCII meteo files", and here you have the opportunity of choosing the Plane irradiance in the importing protocol. Link to comment Share on other sites More sharing options...
camapa Posted August 25, 2016 Share Posted August 25, 2016 Dear Andre,I have monthly irradiance data at POA for the site I'm studying, but not yet at a higher resolution.Is it possible to take the monthly POA into account somehow in PVsyst? If so, how should I do it?Thank you Link to comment Share on other sites More sharing options...
LoicA Posted August 31, 2016 Share Posted August 31, 2016 HiIf I understand well your question, yes you should be able to generate synthetic hourly data from this monthly data. That's a standard process.Loic Link to comment Share on other sites More sharing options...
André Mermoud Posted August 31, 2016 Share Posted August 31, 2016 No, this is quite impossible. There is no model for the retro-transposition to the horizontal plane in monthly values. And no model for the synthetic generation of POA values. Probably nobody knows how to do that. Link to comment Share on other sites More sharing options...
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