Yakir Posted December 8, 2016 Share Posted December 8, 2016 Hello,I'm trying to do a special simulation- running the simulation without the DNI (only diffusive radiation, meaning global = diffusive)I've built a meteo file and uploaded it into PVsyst but when I try to run the simulation I get this massage:"Invalid meteo file: the Clearness index of the best clear days is very low with respect to the clear sky model. check the meteo data"and it wont let me run the simulationdoes anyone know how to overcome this?ThanksYakir Link to comment Share on other sites More sharing options...
Yakir Posted December 11, 2016 Author Share Posted December 11, 2016 OK I've manage to do that.based on http://forum.pvsyst.com/viewtopic.php?f=22&t=2489in short: on the main page under preference (second top menu) -> edit hidden parameters -> Miscellaneous: Meteo, Simulation, ... --> change the best Ktcc: days have strogly low value' and 'best ktcc number of exceptional days' to zero and 365 respectively I've attached pictures with the steps.MenuMenu Link to comment Share on other sites More sharing options...
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