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Found 14 results

  1. Hello Valentin Team, I`ve created 3D project with bifacial modules (east/west) I don`t know if i do something wrong or there is a problem in aplication but in "Calculation": PV Generator Energy (AC grid) probably calculates energy only for one side. I`v done some tests and facade configuration heading to west producing the same amount of energy as bifacial setup heading to east/west. Calculation works correctly in 2D. Bifacial and facade projects included in attachment. Niemierzyno_1.pvprj Niemierzyno_1_proba_usun.pvprj Niemierzyno2d.pdf
  2. Some of Valentin's PVSOL Premium potential customers might have, as I did, decided to buy the software based on 3D modeling and shading simulation capabilities. Several anecdotal evidences of this capability can be found on this forum, and on promotion materials spread across several media by Valentin Software sales team. Let me give some examples below... Above - PVSOL Online Shop suggests drone usage for photogrammetry Above - Youtube tutorial suggesting the use of photogrammetry software for 3D import (Pix4D) Above: Feature advertised online since 2017, note the mention to "3D objects created with photos taken from a drone" I guess these examples should be enough to prove the spin over 3D photogrammetry and real life 3D models import into PVSOL. Most people most probably will do the same as we did, download the software and try it out with simple small examples, and it does work, how nice... we then decide to buy the software. Unfortunately it's only when starting to use it for real, with real projects, real data, real photogrammetry, that the trouble starts... errr... ok... let's go smaller then... decimate 3D model and retry... oops... there is a limit of ONLY 500.000 vertices! Anyone with the thinnest experience in photogrammetry knows 500k vertices is nothing, any model with such a low count of vertices is either a single building alone with very little detail and very decimated, or the scene is in terribly low quality with lots of 3D defects. This 500k vertices limit renders the 3D photogrammetry almost useless. In order to work with photogrammetry 3D models one has to decimate the model to a number of vertices really below the 500k vertices limit, because as reported in this other thread (without answer for weeks now) the vertices count is wrong and includes some own PVSOL vertices as overhead, limiting even further the model quality. We have no choice but to comply with the previously unmentioned limits, and we decimate the model further, making the 3D almost unrecognizable, and voila it finally loads and we can start designing the PV system believing all is well now, apart from the 3D miserable quality: This illusion ends as soon as we press the "Start shading frequency" button with the option to show shading percentages on the modules. With the example above, with only 320 modules, the application crashes with an "out-of-memory error": Now this is very strange because this is a 16GB machine and memory usage by PVSOL process never went above 1.4GB on all of the tests we did, so there is a nasty bug here. Valentin official answer is to just say we ran out of memory (despite proof we did not), and telling me "We would use the planning mode with map section.", yes really! So we are working with a 3D model decimated already to just a few hundred vertices, and still PVSOL can't cope with it. Astonishing! We did not give up, and went to the extent of DELETING part of the 3D model objects, parts that would not interfere with shading on the modules, and decimated even further. The result was an .obj file with just 82.034 vertices, that’s 16% of what PVSOL claims to be able to handle, and guess what... it still crashes and can't simulate shading. Conclusion: Don't be fooled by Valentin Software claims over the use of 3D import of photogrammetry models, it's nothing but a toy for micro systems, it's not for professional use. Hope this narrative is useful to anyone considering buying PVSOL Premium based on 3D photogrammetry imports. PS: I have found PVSOL capabilities in regards to computation to be flawless thus far, if you don't mind a miserable 3D component, it's worth it. The 3D module however is just lame. PPS: The worst part on this is that Valentin Software refuses to admit it has a memory management bug, and provides no real assistance nor solution apart from dropping 3D import.
  3. Hallo Valentin-Team, ich habe Probleme mein Projekt durchkalkulieren zu lassen, da man dafür ja die Abschattungssimulation benötigt. Wenn ich diese Ausführen will, stürzt das Programm ab. Also komme ich wieder zur Frage zurück, welche ich bereits in einem anderen Thread gestellt hatte, die aber leider noch nicht beantwortet wurde: Welche 3D-Bild Eigenschaften soll man beim Exportieren des 3D-Bildes einstellen, damit PVSol richtig funktioniert? Dank im voraus. Anton
  4. When i start a new project i cannot pass the 3D design phase, as soon as i open the window it pops up a error saying "Fehler beim Zeichnen des Prims" and after pressing ok it closes. How can i fix this error?
  5. Working closlely with building companies they often want a 3D model of the house that they are building. When will it be possible to export the 3d building from PV Sol? (so that you can 3D print the model amongst other things)
  6. Hi, When simulating a particular project and reading the EB, I can see that the module independent shading, which I normally assume to be due to the horizon (far) shading is just below 6%. Looking to the module dependent shading, I can see that this is at around 16%. Two aspects are interesting when it comes to this: The total shading loss over the year, presented in the summary, is 23.2%. Removing the horizon from the 3D model reduces the module dependent shading almost entirely. Knowing how the help file defines independent and dependent shading, I am a little confused by these two contradicting aspects. Regarding (1), what is the logic inferred here? Shouldn't the loss presented in module dependent shading be a share of the incoming radiation converted at STC into a certain available energy quantity? How can the relative loss before and after STC conversion be added together, when the loss on module level would be much smaller if corrected for the conversion efficiency? Regarding (2), what is the relation between horizon (module independent) shading and near (module dependent) shading? It is reasonable to expect that removing the horizon would remove the module independent shading loss. However, as it seems, it actually also removes the module specific shading. How can this be? I would expect these two losses to be distinguishable and non-interactive. Appreciate any explanation, as I haven't been able to find an elaborate explanation elsewhere.
  7. Hi, Whenever I try to use the 3D scene in PVsol 2018 (R4) it begins to load the scene with a progress bar, but upon completion the program freezes. I have tried uninstalling the GPU and installing newest drivers, uninstalling and re-installing PVsol, opening files in previous versions of PVsol, aso. Nothing seems to work. Do you know what might be causing this or any suitable solutions?
  8. Hallo Zusammen, ich möchte gerne eine PV-Anlage über mehrere Reihen-Flachdächer simulieren. Die einzelnen Häuser haben jedoch verschiedene Höhen, sodass ich jeweils ein Gebäude an das andere ansetzen möchte.. Nun habe ich aber Probleme damit, diese "passgenau" an einander zusetzen. Gibt es eine Möglichkeit die Häuserwände über eine Funktion logisch miteinander zu verknüpfen, sodass die Wände der verschiedenen Gebäude ( mit gleichen Maßen) an einander gesetzt werden? Wenn ich es über die X und Y Koordinaten versuche, kommt es immer zu kleineren Ungenauigkeiten. Vielen Dank im Voraus und freundliche Grüße, Alex
  9. Hello, I am trying to design a 3D PV system on a flat roof of a building. However, there is a tall BTS tower just next to the building. I have tried to model that lattice tower in 3D visualization but I could not succeed. The best I could do is to replace a solid chimney and change the texture of it. So it looks like a lattice tower. However, I think the PV system performance may change according to the shading from a lattice or solid tower. Is it possible to model a lattice tower in PV*SOL? Best Regards,
  10. [Tutorial] PV*SOL premium 2017– Mounting system on a facade How to create a mounting system on a facade: In the 3D environment, go to the page "Module Mounting" Move to the facade before defining the assembly system Click the button "New Assembly System" Select "Facade Tilt" For a module inclination of 30°, the assembly system must have a mount angle of 60° to the facade A 75° mount angle results in an inclination of 15° to the horizontal plane Press the enter key to confirm or click "OK" Click the button "Fill Area" Now click and hold the left mouse button to create a module row in the defined area Thanks for watching!
  11. [Tutorial] PV*SOL premium 2017– Aufständerung an einer Fassade So erstellen Sie eine Aufständerung an einer Fassade Gehen Sie auf die Seite "Modulaufständerung" Wechseln Sie vor der Definition des Montagesystems auf die Fassade Klicken Sie den Button "Neues Montagesystem" Wählen Sie "Fassadenaufständerung" Für eine Modulneigung von 30° muss das Montagesystem einen Aufständerungswinkel von 60° zur Fassade haben 75° Aufständerungswinkel ergibt eine Neigung von 15° zur Horizontalen Bestätigen Sie mit der Eingabetaste oder klicken Sie "OK" Klicken Sie den Button "Aufziehen" Klicken Sie nun links und halten Sie die Maustaste gedrückt, um im definierten Bereich eine Modulreihe zu erzeugen Vielen Dank fürs Zuschauen!
  12. [Tutorial] PVSOL premium 2017 - Configure two dormers to one string How to configure two dormers (module areas) to one string In the 3D environment, go to the page "Module configuration" Click on the button with the hand symbol to open the window "Define Module Areas" Now click on the import button to import all module arrays Combine the groups by clicking the button "Combine Selection". Make sure that the groups are checked Click the "Configure" button Use the "Suggest Configuration" feature to select a suitable inverter Now both dormers are combined in a single string Thanks for watching!
  13. PV*SOL premium 2017– Zwei Gauben an einen Strang verschalten So verschalten Sie zwei Gauben (Modulflächen) an einen Strang: Gehen Sie auf die Seite "Modulverschaltung" Klicken Sie den Button mit dem Hand-Symbol, um das Fenster "Modulflächen definieren" zu öffnen Klicken Sie jetzt den "Importieren" Button , um alle Modulformationen zu importieren Vereinigen Sie die Gruppen, indem Sie den Button "Auswahl vereinigen" klicken. Achten Sie darauf, dass beide Gruppen ausgewählt sind (Häkchen) Klicken Sie auf den "Verschalten" Button Nun sind beide Gauben an einem Strang verschaltet. Vielen Dank fürs Zuschauen!
  14. Hello, I recently purchased the PV-SOL Premium and I can't run simulations or reports because on the bottom of the page I read the error "First, please define a valid system in the 3D visualization". No matter what type of system I select I can't run any report in 3D. What do I need to do? Thanks, Tommaso
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