Muhammed Sarikaya

Dear Zahra, If you know the exact global wiring resistance of your system and want a precise result, you can fill in the field "Global wiring resistance". Usually, the value for "Loss fraction at STC" is used when the exact global wiring resistance is unknown and you are just estimating it based on the STC value. For module losses: LID losses: Not applicable for PV modules based on n-dop wafers. You need to know the technology used in your PV module. Otherwise, we don’t have precise information regarding LID losses, since manufacturers don’t usually share this type of data. You can decide to add 1% or 2% depending on your confidence in the PV module. See our help page: https://www.pvsyst.com/help/project-design/array-and-system-losses/lid-loss.html Module Quality: Please read our help page: https://www.pvsyst.com/help/project-design/array-and-system-losses/module-quality-losses.html Module Mismatch Losses: Please also see our help page: https://www.pvsyst.com/help/project-design/array-and-system-losses/array-mismatch-losses/index.html Usually, this is also an approximation, based on your assessment of the PV module quality and the variability between them. Regards,

Dear Caio, Thank you for the suggestion. I will add it to our software development roadmap, but I can't guarantee when this feature will be implemented. Regards, Muhammed Sarikaya

Dear Caio, Thank you for your suggestion to improve the 3D feature in PVsyst. For your first suggestion, I recommend trying the “Pen – Extruded polygon” tool (see below). It lets you draw a complex shape on the ground plane and extrude it to whatever height you need. Let me know if this helps. Regards, Muhammed Sarikaya

Dear Zahra, For a stand-alone project, which is generally small and simple, we don’t represent the inverter, because the main focus is to understand how the PV modules, along with the batteries, will meet the users’ electricity needs. This is why it’s not possible to define an inverter with specific parameters for each MPPT in such a project. For your first question: No, this is not possible in PVsyst. The software does not allow you to input pre-calculated PV production as an input. In a stand-alone system, you must define the PV fields, and PVsyst will calculate the production based on those components. For your second question: Could you tell me which parameter you would like to modify? Regards,

Dear Oscar First of all, in the "unlimited shed" orientation, the sensitive width is the total width of the modules aligned on your PV table. For example, if your PV module is positioned in landscape in your 3D scene, the smaller side is 1.134 meters. Since you want two rows placed one above the other in each table (still in landscape), you need to multiply the smaller length by 2: 1.134 × 2 = 2.268 meters. In my example below, I used 2 meters as the sensitive width. You can always verify in the 3D scene whether the sensitive width value is correct. But if you already know the dimensions of your PV module, its orientation (landscape or portrait), and the number of rows per table, you can calculate the sensitive width. You can also click on the "Help" button in the "Show Optimization" window — it will open a help page with a full explanation (see below). If you need more information or something isn’t clear, don’t hesitate to reach out to us. Regards,

Dear Haseeb, Can you please send your project to support@pvsyst.com so that we can analyze the issue? Please follow this process to export your project as a ZIP file: Regards,

I invite you to consult our help page regarding this: https://www.pvsyst.com/help/project-design/shadings/near-shadings-3d-construction/construction-tools/zones-of-tables.html?h=zones+tables

Dear NFI, I don't understand what you mean by "one way to configure the string with inverters." I invite you to watch this tutorial, which explains well how to configure it: Regarding near shading, it can indeed be difficult to place the modules. I suggest trying the zone tools as well. Also, if you encounter an error message, please send it to us at support@pvsyst.com along with a screenshot, so we can help you solve the problem. Regards,

Dear Shivam The map size is limited, but if you want to import an image, you can do the following: Take a screenshot of a satellite image. Then import it via File > Import > Import a ground image. Finally, you need to scale the image to match the actual scale. To crop an imported image: Double-click on the image. You will see "Ground Image" with a Crop option (highlighted at the bottom right). Click on it to crop and resize the image. Regards,

Dear Greg, If you don’t want to import energy from the grid, it’s considered a stand-alone project. I suggest running your simulation as a stand-alone system. In a grid-connected project, the grid supplies energy when the system can’t meet the user’s demand. See my screenshot below: Regards,

Dear RahSolar, Can you please send us your project along with the 3D scene you are using to support@pvsyst.com so we can better understand the issue? I suspect that you are using a 3D file with a larger PV area than what you declared in the system window of the software. Regards,

Dear Carlos, I don’t recommend importing a detailed 3D forest file into PVsyst. The more detailed the 3D scene is, the longer it takes to calculate the shading impact on the PV tables. For the horizon line, you can already import the mountain line in PVsyst using the horizon feature. In the 3D scene, if there is a forest at the edge of your terrain, I suggest drawing a wall to represent the last row of trees. Regards,

Dear JNutter, It’s difficult for us to understand why you are encountering this issue. Could you please send us your project at support@pvsyst.com so we can examine it? Also, please explain the issue in your email. Regards,

Dear Andrés, Can you please send us your .ond file at support@pvsyst.com so we can examine it? Also, could you explain your issue in your email? Regards,

Dear Alex, Is it possible for you to send us your project at support@pvsyst.com so we can test it and compare the results between V7 and V8? In your email, could you also explain the procedure you followed that led to these differences? Regards,

Dear Nikoloz, It seems that the inverter you want to use is a central inverter with only one MPPT. This means all strings connected to it must be identical. So, you don’t need to worry about the MPPT definition. In PVsyst, just select the configuration “PNom sharing within the inverter” (see below). Then, you only need to specify the number of inverters. Regards,

Dear Ishan, First of all, the Unlimited Tracker represents an idealized PV table layout, with all rows having exactly the same length. Most likely, your 3D scene doesn't follow this idealized representation. Could you please send us your project by email at support@pvsyst.com, so I can check it and explain why you're seeing these differences? Regards,

Dear Oli, Unbalanced inverters are not designed for power sharing. Regards,

Dear Arisk, Unfortenately, this is not possible. Regards,

Dear Ville, Unfortunately, with a central inverter in PVsyst, it's not possible to perform what you want to do. You can try to modify the OND file by allowing multiple MPPTs, but this will not reflect reality. Regards,

Dear Edwin, Thank you very much for your feedback and for taking the time to report this bug. Could you tell me how this situation occurred in your case, where the Medium Voltage panel remains visible even though you selected HV transformers? I need to reproduce this bug on my side in order to fix it. Regards,

Dear, I can’t help you with AutoCAD or how to convert the topography to a CSV file. Maybe just make sure to check the X, Y, Z coordinates in the CSV. With version 8, we can import topography from the internet — it might also be useful for you. Here’s how to do it: In Near Shading, click File > Import > Download a satellite ground image and/or ground data Then, don’t forget to check “Also import topography data” Regards,

Dear Cleyson, I created the PAN file based on the datasheet and didn’t get any error messages, see below: Click on the "Model parameters" tab and select the default value for series resistance, as shown below: Try using exactly the same settings and let me know if anything changes for you. Regards,

Dear, We update the database using the requests of the manufacturers, and publish it with each new issue of PVsyst. We can't of course follow all the new products of all manufacturers in the world. Therefore, please ask your provider/manufacturer to take contact with us for updating the database. Nevertheless you can easily create your own components by yourself. The easiest way is to choose a similar existing device in the database, modify its parameters according to the manufacturer's datasheets, and save it under a new name, therefore creating a new file in your database. You have a tutorial for that on youtube: Regards,

Dear Terence, Is it possible to send us the DAE file to "support@pvsyst.com" so we can also try it and check why there's a difference between the near shading and the report? Regards