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Dear Nikoloz, When clicking on "Save" from the main project window, you are free to update the project file name and replace "_" by "." . Then, when generating the report and saving the PDF file, it will keep the dots. Best regards

We are thrilled to announce the launch of three new YouTube channels, each dedicated to a specific language to better serve your needs. ✅ English Channel: https://www.youtube.com/channel/UCMzs... ✅ French Channel: https://www.youtube.com/@PVsystOffici... ✅ Spanish Channel: https://www.youtube.com/@PVsystOffici... ✅ Chinese Channel: https://www.youtube.com/@PVsystOffici... 👉 From now on, our current YouTube channel will feature content exclusively in English, while the new channels will host videos in their respective languages. We hope this initiative will make it easier for you to access our content in the language you’re most comfortable with. 🔔 Don’t forget to subscribe to the channel that matches your preferred language to stay up-to-date with our latest videos! We wish you a joyful holiday season filled with happiness and success!

When I clicked the import button, an error occurred and I don't know where the problem went. A few days ago, I was still able to use it normally.

yes but i still recieve the error of conpenetrating so i have to lower just a little bit the ground . is there a way to also reduce the size of the ground after i have finished to place the layout? and i have another question but of another kind.. if i have a 27 module string, but my pv layout is made of 9 modules arrays , how i can set the string in the shading scenes to make it considere 3 arrays as one string? the minimum x , y values i can set are 1 so i not know if it is possible to do to

Hello. Did you use the automatic altitude feature? Right-click on the PV fields you want to adjust at the level of the ground and select 'Automatic altitude'. Does it fit on your ground?

Thanx One more question 🙂 in Project's name field it does not recognize dots . on File Name instead of dots it shows _ for example I have created project with name " Karaleti_66.46.01.672.001" but the file name is "Karaleti_66_46_01_672_001_Project.VC0-Report.pdf" . These dots are important 66.46.01.672.001 - 66_46_01_672_001 This is a code of a plot of land where client is going to build plant. Is it possible to use just dots ?

Hi, Unfortunately this function is not available yet and indeed to see the production of each individual PV field you have to separate the fields into individual variants. Kind regards

Hello, From your description, it looks like PVsyst is freezing when it uses your computer graphic card driver. Please update your graphic card driver by following the procedure documented in our FAQ: https://forum.pvsyst.com/topic/1253-updating-your-graphics-card-driver-pvsyst-660-and-above/?do=findComment&comment=3402 Alternatively, you can try to run PVsyst with another graphic card driver of your PC if it has one. This selection is available in Windows settings (in Graphics settings) after you have chosen PVsyst program file: I hope this will help you to resolve this issue. Best regards.

Is it possible on PVsyst to have the production, "Produced Energy or Yield or PR" for the individual PV fields or by house? Or need to re-run a PVsyst simulation for each separately PV field or houses separately?

i not know why in that case after i dragger the plant in position on the ground file my modules automatically adjusted based on the ground levels, i had just to lower the ground reticle otherwise pvsyst will give error of conpenetrating objects. now if i want to do that thing again it not work my plant remains flat. help me please

Hello, i need a help, i have a layout i have made on autocad, converted to a DAE file and it work perfectly.. now i have learned that i can download from pvsyst ground levels, now, how i can adapt my plan layout to the ground level i have downloaded?

Hi everyone, We're working on a project with a bunch of high-voltage antennas. We're mainly looking at what happens to the one that works the hardest (the one where the voltage drops the most). How do we show this in our simulation? So, about the losses in the transformers, how should we read the simulation? Do the 'iron loss' and 'copper loss' numbers add up if we have more transformers? Does the number of transformers we put in change how much power we actually get out? Best regards, Arnaud Pancrazi Design engineer from EQUANS (France)

Dear Obulshteyn, Maybe you can send a screenshot of the scene in Lumion. However, I suspect that your scene contains multiple objects, which PVsyst has difficulty opening. The purpose of the 3D scene in PVsyst is to calculate shading on the PV surface. If your Lumion project includes elements that don't impact the PV surface, I suggest removing them. You need to simplify the drawing as much as possible, as excessive details add complexity and could be one of the reasons it fails to open in PVsyst. Regards, Muhammed Sarikaya

Dear Matheus, Only CSV files for topography are accepted in PVsyst. I suggest you find a way to convert your TIFF file into a CSV file with only three columns: X, Y, and Z coordinates. Regards, Muhammed Sarikaya

Year-to-year variability can be of about 5%, and climate change can also be a factor. Comparing a couple of years to a TMY may indeed give significantly different results. However, in some cases the satellite TMY / synthetic approaches may be biased up or downwards, that also happens. I would suggest communicating with Solcast and Meteonorm about that. I am not surprised at the 10% increase, because trackers on a topography are subject to some shadings due to the differences in height, even if you have the best backtracking algorithms. Note that in PVsyst we are a bit pessimistic regarding the backtracking algorithm. Also note that the irradiance optimization algorithm, instead, is quite optimistic ! Actual trackers may never actually apply such a strategy, there is always a question of lag, rotation speed, actual sky analysis and so on.

Hi, when importing, you should be wary of the following option: This will define the orientation properly. You can also try the East/West option. Note that you should not simulate East/West dome systems with a bifacial model. This cannot yet be calculated in PVsyst, a dedicated model needs to be developed still. In principle, the bifacial gain of E/W domes is negligible, unless the height of the dome is important.

Hello NGD. The parameter is a positive value. The absolute value of the angles difference is checked against this parameter. My guess is that in the first case (15 - 12.6) you set a value that was sufficient to accept this difference, but not in the second case (109.9 - 93.6 = 16.3) Please check again Edit: Your error actually refer to parameter 'Tilt Spread Max'

Hello. To better assist you with your issue, please send your V7 project to support@pvsyst.com

Hi Everyone, I've made this project on PVSYST V7 without any pb. I've made the upgrade to V8 and this is what happen to all my project. How to do ? Thanks for every suggestion :)

Hello. This is a 'Portion of Cylinder' The Height of this object is editable in 'List and management of objects' This object is 'House + 2-sided roof' It's height is NOT editable. So if you have already an object in the list thas editable height (like the portion of cylinder), the height for this object will be visible but 'N/A' As for the reason why height for 'House + 2-sided roof' is not editable, I'm not sure if it's by design or if it can be changed to editable. I will inquire and will request enhancement if it's possible. Regards

Hi Jeremie, Thank you for the comment, Sorry I don't understand, Could you give me more detail explanation? Mayne it would be great if you have a picture how to set it, meaning how to make editable. I'm sorry. I don't understand'Portion of cylinder'. Thank you.

The DAE file referenced above is 276 MB so it cannot be sent via email; is there another way to get you the file? Lumion is just a 3d rendering software: Industry-Leading 3D Rendering Software | Lumion - Lumion 3D Rendering Software

Hello, i'm using pvsyst 8.0.3. I'm trying to import ground data in shading scene construction. When i select .tif file (GeoTIFF) pvsyst return this error: "Unsupported elevation data type. Only supports GDT_Float32". I export the .tif file from software Global Mapper. I searched this problem, but didnt find any solution and sincerely, i dont have any idea how to solve. The pvsyst documentation has a short content about importing GeoTIFF Ground data. Can someone give me a hint, please. Thanks, MA.

Actually, it is even trickier than that. For both values, changes are detected if any of the 1st 4 characters is changed. It usually means 1 digit for module quality (the "-" counts as a character) and 2 digits for the LID. Then, if the value is less than 0.1 point different from the default, it is set to the default value. The final value is then stored and, as you mentioned, only 1 digit is displayed. This is obviously not ideal, and we should harmonize the behaviors and make sur the number of digit displayed matches the number used. Nevertheless, such an accuracy (1/10000) is definitively not necessary in the 1st place.

Dear PVsyst User, Please email us at support@pvsyst.com your PVsyst LOG files (using menu <File> <Export logs>) so we can analyze what happened. Best regards.