developer_fw

Hallo MariusvdB, entschuldige die späte Antwort. Die Physik hat Recht und das ist in Hinsicht auf den sicheren Betrieb das Wichtigste! Es sind folgende Dinge zu prüfen: Sind die elektrischen Parameter des Wechselrichters und der PV-Module korrekt in PV*SOL hinterlegt? Es kommt vor, dass Datenblätter nicht richtig in die Datenbank übertragen wurden. Es ist unbedingt die Leerlaufspannung einzuhalten! Das scheint der Fall zu sein. Stimmen die elektrischen Parameter der PV-Module in der Datenbank, dann funktioniert auch hier die Prüfung von PV*SOL. An dieser Stelle darf auch in den Abregelungsbereich des Wechselrichters gefahren werden (orangener Bereich). Um zu bestimmen, wie groß diese Verluste in einem typischen Jahr sind; genau hierfür ist PV*SOL geeignet und das sollte in der Energiebilanz geprüft werden. Hilft das erstmal weiter? Bei Fragen gerne fragen! Beste Grüße! Frederik

Hallo RenéSol, entweder per Polygonzug in PV*SOL, dort würde ich allerdings nur das Nachzeichnen eines Kartenausschnitts oder eines importierten Bilds empfehlen. Alternativ mit einer 3D-CAD-Software, in der parametrisches Zeichnen und auch vernünftige Bemaßungen möglich sind, dieses als Alias Mesh *.obj exportieren und in PV*SOL importieren: Beste Grüße, Frederik

Hi martinj Could you please reach out for our hotline support with a detailed problem description? https://valentin-software.com/en/support/technical-support/ Thank you in advance and kind regards Frederik

Hallo KWR, Der Ertrag einer Anlage hängt von vielen Faktoren ab, zum Beispiel welche Klimadaten in die Simulation einfließen; wie sind die Module verschaltet, etc. Anhand von zwei Screenshots ist schwer zu beurteilen, woran es liegen könnte. Sie können gerne Kontakt zu unserem Hotline-Support aufnehmen: https://valentin-software.com/support/technischer-support/ Oder für einen Vergleich die .pvprj Dateien hier im Forum zusenden, damit wir einen Blick hinein werfen können. Beste Grüße, Frederik

Hello Go green BG I am not sure I understand your question correctly. In this case it seems best to have several projects with adapted inclinations. There is no way of combining several projects into one .pvprj file, I'm afraid. Kind regards Frederik

Hi Go green BG At the moment you have to do several simulations and could zip together the exported simulation results afterwards. But thank you for the input, this is a nice idea which I added to our list of feature requests. Kind regards Frederik

Hi Rene There is no special reason. It is just coincidence that somehow the default location for Iraq is missing. And it could be that we did not create a default climate location for every country in the world. You could create new locations as usual, though. Kind regards Frederik

Hi Sebastian-S This is not correct. By activating the object on which you do want to place the chimney - the dormer in this case - by right click > Activate, you could place further objects. Kind regards Frederik

Hello Francisco.Rincon Thank you for your request. I forwarded it to our database team. Kind regards Frederik

Hallo Zdenko Dies ist zur Zeit der Fall, ja. Es wird ein konstanter Verschiebungsfaktor unter Projektoptionen > AC-Netz festgelegt: Bisher hielten sich die Anfragen zur detaillierteren Berücksichtigung des Verschiebungsfaktors in Grenzen, es ist aber denkbar, dass wir eine Q(U)-Regelung bereit stellen können. Schwer zu sagen; das hängt stark von der Netzanschlussleistung, cos φ und der Regelungskurve des Versorgungsnetzbetreibers ab. Freundliche Grüße, Frederik

That is correct, yes.

Hallo Olexandr Yefymenko, danke für die Fehlermeldung, das Video und die ausführliche Fehlerbeschreibung per privater Nachricht. Wir melden uns zurück. Freundliche Grüße, Frederik

Hi Afriyie Could you ensure you do have necessary rights for the following files? Kind regards Frederik

Hello oscar No, there is no option to save and load certain sun positions for further maximum shading analysis. Kind regards Frederik

Hello Valeriia Not at the moment, no. But I will put this on our agenda (once again) and see if and when we could make this happen. Kind regards Frederik

Hello ArtemVydysh Could you tell the name of your module area? There could be a problem due to not allowed special characters. Thank you in advance and kind regards Frederik

Hello RaW Could you check the following thread and test the steps? If this does not help, please feel free to come back. You could also send all the files here via private message so I can have a look into it. Kind regards Frederik

Hi Torbjørn Heimvik Thank you for the project file. The losses due to the bifaciality factor is just one side of the coin since you have to take into account radiation gains: That is correct. Kind regards Frederik

Hi Martijn Thank you for your request. The fields of the fast selection are separated and do not allow a comprehensive search. In this case Fronius is the manufacturer which can be found in the Manufacturer dropdown. For a comprehensive lookup try opening the database via the Detailed Selection: After selecting All Companies you could filter for byd... It is the dropdown for the manufacturer who sells the system despite the battery its using but I acknowledge it could be misleading. Kind regards Frederik

Hej Garry Unfortunately your email has ended up in SPAM. Meanwhile, you should have received an email with your account instructions. Kind regards Frederik

Hello omid Could you please elaborate your statement? It is definitely possible to mix charging sources, otherwise it would have been indeed a downgrade. The example project "Battery System" is configured to avoid additional charging from the grid After activating time-controlled charging the charging by grid becomes bigger: It is. Kind regards Frederik

Hi Garry Thank you for your message. I forwarded your request. Kind regards Frederik

Hello Martin WALZER Thank you for your request which I forwarded to our database team. This also depends on the manufacturers and how fast they can provide the systems to our database. Kind regards Frederik

Hello Marek We are working hard on the new 3D environment where we did implement a undo/redo stack for as many instructions as possible. New graphics are the topping in the end of our development cycle. We are currently planning to complete a first test version in fall 2024. It is extremely difficult to give a fixed schedule because there are always drawbacks. I know that's not satisfactory; that's all I can say at the moment. Kind regards Frederik

Hello Torbjørn Heimvik in our online help it is stated that typical bifacial factors are in the range of 0.7...0.8 which means 70...80%: https://help.valentin-software.com/pvsol/2024/en/calculation/pv-modules/bifacial-modules/ It is also stated that for roof-parallel systems as chosen within your project there is no radiation on the back side. When changed in the used mounting system, there should be additional yield. In your example project with a low module elevation in east-west configuration I assume there is probably no relevant gains anyway. Hm, could you send the .pvprj file regarding those losses? Without the project file it is hard to pin down the responsible causes. Kind regards Frederik