Skip to content
View in the app

A better way to browse. Learn more.

Forum Valentin Software

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.
  1. Started by Patrik,

    Hello, I want to ask about CD coupling system, I created BYD battery with DC coupling but there is an issue that the battery is not working properly. PV system should be working fine, but after calculating there is no use of battery for my application of grid connect battery system with own consumption. As you can see on the graphs above there is only battery charging but no use of battery storage to feed the load. Is there something that i did wrong or it is just your system issue ? I also tried a DC generator coupling but nothing changed. I also enclose project in attachments and the parameters below. I also wan…

  2. Started by Witanak,

    Hello, I would be interested in updating information regarding Victron inverters. Are you still not going to include them in the database? Thank you for your reply. Vítek

  3. Hello everyone, I'd like to talk about optimising solar pv system sizes for commercial scale projects. When there is 30min interval consumption data, and information on constraints such as; available area and export limits - planning the right balance between system size and financial payback/ROI can be a slow and iterative process. The way I see optimising solar pv system sizes for commercial scale projects is by making simulation, after simulation, after simulation of different system sizes in an effort to arrive at the golden system size. I was wondering if there are any methods via PVSol, or external to PVSol, that can speed up the process of arriving a…

  4. Started by ionut,

    please update the database with the batteries from dyness DH200F, D100F and others. the ones entered in pv sol do not have the power in Kwh according to the data sheet thank you

  5. Hi all, I am trying to create a system with 2no batteries SolarEdge "PCS050 50 kW + CCS-OU-20 (102.4 kWh" there is a lot of confusion about the number of batteries in the final presentation, and i was hoping for you to shed some light in this. My question is: How many batteries does the above system has? I know that, Pvsol divides the number of inverters, for example if you want to add a SE 50k inverter to the system, you need to add 2no SE 50k inverters to get the effect of a 50k inverter, which leads to a confusion with the clients sometimes. Is this the same case? Is this configuration, despite showing 4no batteries, in reality 2no…

  6. Started by Planer,

    Dear Can I make a calculation with a sun tracking system?

  7. Dobrý den, mám navržený systém, který má zisk 8358 kWh/ rok spotřeby domu je 5000 kWh ročně. V grafu toku energie je znázorněno že z výroby do spotřeby dojde 1995 kWh a zbytek je přetok do sítě. Problém je že v cash flow mi to počítá jako by 5000kWh byla úspora lze to nějak upravit? Dle cash flow to vypadá jako by to bralo automaticky, že výroba činí 8358 kWh spotřeba 5000 kWh a přetok 3358 kWh tak to počítá jako úsporu a přetok. Podle grafu toků je spotřeba z FVE 1995 kWh 6363 kWh přetok a 3017 kWh odebírám ze sítě. Což mi pak vychází jiné úspory a doba návratnosti.

  8. Necesito incorporar estos módulos FV a la base datos adjuntos la ficha en PDF de antemano muchas gracias. Panel Solar Sunket 580W_250204_143829.pdf

    • 2 replies
    • 1.3k views
  9. dear pv-sol. I have downloaded a cvs file based on an engineering and I am wondering where the data from the image can be found in the exel file? I see in the exel file that Charge of the electric vehicle(Grid) is at 2204kWh while in the image this is separated into 2 separate numbers in terms of energy from the battery and energy from the grid. (466kWh+1739kWh) Where can I find this division of 466kWh and 1739kWh?

  10. Started by ionut,

    Hello, For a photovoltaic system of 400 KWp with a storage power of 1290 KWh. Please help me to configure so that the capacity produced by the photovoltaic system charges the storage system the first time, then the energy goes to consumption or to the grid . I would like the simulation to result in at least 75% of the energy production from the photovoltaic system being taken over in storage and the difference in consumption or grids

  11. Started by ionut,

    Hello, I updated from pv sol 2024 to pv sol 2025. Simulations done with DC storage get the attached error please help

  12. Started by Mr Roboto,

    Simulation output data. Is it possible to change the year on the simulation output to any year other than 2014? I want to verify system simulation with actual system performance on a leap year and I end up averaging the output of the 29th Feb from 28 Feb and 1 March. Any help on this will be greatly appreciated.

  13. Dear PV-sol experts, I'm currently simulating a solarpark with portrait PV panels. Due to the lack of space, we only have a rather small space between the panels, which causes shading on the next panel in line. Because we don't have panels with a bypass configuration for portrait, this would mean that shading the lowest row of the panel, will activate all bypass diodes and will therefore more of less shut off the panel. My question is; is this effect taken into account for the simulation or is shading taken as an average decrease in illumination? As what I understand you do take it into account, but i really need to be sure, because the continue of the pro…

      • Like
    • 6 replies
    • 7.1k views
  14. Hi, Can anybody explain why I have two different yields on my report? What is The Yield for EnEV? Thank you in advance Carl

  15. Started by Gary Zhou,

    Do the software consider the degradation of energy storage when calculating the return on investment? I updated the DOD of the battery's discharge cycle in the settings. Also, could you clarify what 'SOC battery' means on the result interface? Does this imply that the solar system hasn't fully charged the battery?

  16. Started by CarlSEL,

    Hi, I am designing a large university campus that has one main MPAN Meter with one Half Hour Data values. Due to the size of the site I have had to split the designs across two saved files. Can you tell me how I can create a single production, PR, export, own consumption and self sufficiency for the site overall? I can download the simulation values on excel but was wondering what values I would need to calculate to create the above overall values. Mainly own consumption and self sufficiency. Thanks

  17. Started by ionut,

    Hello, Please help me change the pvsol premium 2024 license from one laptop to another. I no longer want pvsol to remain on the original laptop. I would like to specify that I later want to change the license to the new one from November. Please let me know how to proceed correctly Thank you

    • 4 replies
    • 2k views
  18. Started by xguil,

    Hello I am trying to install your PVSOL program to test it, since I am very interested, but it gives me an error. I am installing it on a MAC M2 that runs Windows 11 in parallel. When installing it it tells me that it is only possible to put it on X86 and X64 processors (this processor is ARM) The version I am installing is 2024_1. The issue is that a colleague tested the 2023 version with the same system and says that it worked perfectly. Thank you so much

    • 4 replies
    • 2.5k views
  19. Started by NunoLopes,

    Dear ValentinSoftware, Good afternoon. I recently updated PVSOL to the 2025 version, and I am encountering an error when trying to open a project, as shown in the attached image. Could you please assist me in resolving this issue? Thank you in advance for your support. Best regards,

    • 2 replies
    • 1.3k views
  20. Started by ramiskytte,

    Hi There I am having a hard time placing PV-modules on a flat roofted building. It seems like i only can apply pv modules on the walls, and not the roof? What a my doing wrong? i cant get on the upper edge of the building! thanks in advance (the newbie)

  21. Started by chudy14,

    my pvsol just crushed, and asked me to use my backup, I said ok and this is what happened: Earth is not only flat, it's a solar panel too!

  22. Started by Roger M,

    I cannot find the model Growatt MAX 75KTL3-XL2 in the inverter selection. Could you forward this request to the development team for its inclusion?

  23. Started by ramiskytte,

    Hi i am a newbie at this program and i am having a hard time getting on the upper edge of a flat roofed building. i seems like a can only apply PV modules on the walls🙄. what am i doing wrong. i need to place pv modules on the roof thanks in advance for your help

  24. Started by Laura,

    I was wondering if you could help me understand how PVSOL calculates the losses due to the shading. In this project we have an east-west layout. The panels in the red row are facing a 5m high wall (building in yellow), so my concern is that it will be completely shaded at the very moment that it should be performing at its best (facing west, shaded when the sun is in the west). If these panels are shaded by this wall and connected to the row in blue, the row in blue will also be affected as they are connected within the same string. Does PVSOL calculate the loss considering the whole string or does it consider the individual loss for each panel? If one panel is 36% …

  25. Started by CarlSEL,

    Hi, I am wondering what is the accuracy of the exported production in hourly format when using Meteonorm 8.2? It would be helpful if you have any figures. Thanks

    • 3 replies
    • 1.9k views

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.