Luiz Reis Posted March 22, 2022 Share Posted March 22, 2022 I'm working with some projects created in PVSyst version 6.85 in version 7.2.12. I performed an initial simulation without making any changes to the project. Analyzing the output variables I was able to confirm that the behavior of EArray is equivalent in both simulations. However, differences of approximately 3% were observed in the UArray and IArray outputs. Has anyone observed something similar. Could you help me understand the causes of the difference? Link to comment Share on other sites More sharing options...
Lazare Fesnien Posted March 23, 2022 Share Posted March 23, 2022 Hi, The Current/voltage of the Array is not a basic variable of the simulation, as it is not related to the energy production. We don't look at it in detail. Please send me you full project, elaborated in the V 6.86. by using "Files > Export Projects" in the main menu. NB: When you talk about differences of 3%, is it the average over the year, or "up to 3%" for some hourly values ? Link to comment Share on other sites More sharing options...
Luiz Reis Posted March 23, 2022 Author Share Posted March 23, 2022 4 hours ago, Lazare Fesnien said: Hi, The Current/voltage of the Array is not a basic variable of the simulation, as it is not related to the energy production. We don't look at it in detail. Please send me you full project, elaborated in the V 6.86. by using "Files > Export Projects" in the main menu. NB: When you talk about differences of 3%, is it the average over the year, or "up to 3%" for some hourly values ? Hi, Thank you very much for the quick response. The difference of 3% in the values is the average referring to the average of the differences of the year. The files referring to the project were sent to the email support@pvsyst.com with the subject "Difference in EArray and IArray between v6 and v7 version". Regards Link to comment Share on other sites More sharing options...
Lazare Fesnien Posted March 23, 2022 Share Posted March 23, 2022 Hi, You have not used the same PV module in both versions: V 6.85: PAN file named "Canadian_CS3W_405P_1500V.PANHE.PAN", which is a custom PAN file V 7.2.12: PAN file named "Canadian_CS3W_405P_1500VHE.PAN", which is in the database. Link to comment Share on other sites More sharing options...
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