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Hallo Philipp, vielen Dank für deine Nachricht. Wir haben deine Anregung ans Entwicklungsteam weitergegeben und danken dir für den Hinweis.

Dear Thomas, Thank you for your inquiry. The differences in yield are due to the different low-light performance of the modules. In PV*SOL either the PV*SOL model or the two-diode model is used to calculate the characteristic curves. Old Trina module (450 Wp) with specific low-light performance and PV*SOL Model New Trina module (465 Wp) with standard low-light performance and Two-diode Model You can find more information in our FAQs and in our Online Help.

Dear Engineer, Thank you for your inquiry. We recommend that you export 3D models from AutoCAD as obj files so that the textures are preserved and also exported. For models in *.obj format, a *.mtl file and a *.jpeg file must be located in the same folder. Visual material properties (e.g. reflection, transparency, specular highlights, etc.) are defined in a separate material file with the file extension *.mtl (Material Template Library), whilst texture data is stored in separate texture files (e.g. *.jpeg files). An attic cannot be created on most imported 3D models, but only on the roofs of standard buildings. We agree that the error message ("An attic can only be created on building roofs with an inclination smaller than 20°.") is incorrect and unhelpful. We have forwarded this to our development department for correction. Instead of an attic, you have the option of inserting fireproof walls: It is correct that the software does not automatically detect mounting surfaces. You import a 3D model as the building envelope and must manually define where mounting surfaces are located. Please also refer to our FAQs: What should I consider when importing 3D models?

Dear Brano Lalic, Thank you for your inquiry. In the 2D planning, shading is not taken into account (unless you manually enter a percentage value). We suspect that the 3D planning shows slight shading due to the elevated module rows, which is why the yield is slightly lower. Please feel free to send us both project files (*.pvprj) to hotline@valentin-software.com so we can take a closer look.

Hallo zina, vielen Dank für deine Anfrage. Das hat mit der Kopplungsart des Batteriesystems zu tun. Bei DC-gekoppelten Batteriesystemen werden die Simulationsergebnisse für PV+Batterie gemeinsam angezeigt. Du könntest das Batteriesystem kopieren und die Kopplungsart auf AC-gekoppelt ändern. Zu beachten ist, dass die Simulation dann etwas anders abläuft und die Darstellung im Schaltplan anders ist.