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falt09

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Everything posted by falt09

  1. I'm having the same issue. PVsyst generates the shading scene fine in the editor but it cannot create the report for visualization, it crashes when printing page#4. I had used ground data as well but I deleted the object before calculating table shadings and running the simulation so, in theory, it should not be affecting anything. In my case, PVsyst crashes before generating the report, not when issuing the PDF, which is more annoying because I can't simply delete that page from the report. Other variants print just fine. (PS: I've been working with PVsyst for the past 5 years and have not come to this issue up to now)
  2. Hello folks, From PVsyst help I get that height above ground (in bifacial settings) is: "the height of the bottom of the sheds, or of the axis in the tracker case". There is a distance from the tracker axis to the rear surface of the module and this distance varies depending on the tracker manufacturer. Does PVsyst add a number on top of "height above ground" to account for this? If yes, what is its value? Thanks.
  3. Hello, I'm getting a far different efficiency profile when calculating with CEC (98.0%) and EUR (98.3). In my understanding, CEC/EUR efficiencies are merely a way of standardizing inverters efficiency, as all they do is to weight the efficiencies at different load levels to represent different climates. From PVsyst help: "If we denote by "Eff50%" the efficiency at 50% of nominal power, the weighted average is defined as: Euro Efficiency = 0.03 x Eff5% + 0.06 x Eff10% + 0.13 x Eff20% + 0.1 x Eff30% + 0.48 x Eff50% + 0.2 x Eff100%. Now for climates of higher insolations like US south-west regions, the California Energy Commission (CEC) has proposed another weighting, which is now specified for some inverters used in the US. CEC Efficiency = 0.04 x Eff10% + 0.05 x Eff20% + 0.12 x Eff30% + 0.21 x Eff50% + 0.53 x Eff75%. + 0.05 x Eff100%." From this, I understand that ii shouldn't matter if I use EUR or CEC efficiency to build my profile, I should arrive in the same Eff10% / Eff20% / Eff30% and so on. Is that correct? If it is, any clue on why my profiles are so different? Cheers.
  4. Hello Hannes, I´m also facing the same issue, unfortunately I don´t see any connection with shapefiles, kmz or ASCII.. I think the closest we can get is to use AutoCAD in between and work in conversions (ESRI formats--dwg--PVsyst). Also, apparently there´s a sketchup 3d format that is readable by PVsyst, but I dind´t have the time to work on. How did you solve your problem? PS.: Same background here, I have been working with wind farms (windpro) and now switching gears to work with PV utility scale. Fernando
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