brunok Posted January 6, 2018 Share Posted January 6, 2018 I have designed the 3D model in the 'Near Shadings' and set the azimuth to -23 degrees using the 'Rotate whole scene' in the Edit menu. However, PVsyst sets the azimuth to 5 degrees in the 'Orientation' tab. Eventhough I checked the 'Detailed, according to module layout' check box in 'Near Shadings' to run the simulation, the report lists azimuth as 5 degrees, which makes me believe that the simulation ran with this azimuth. PVsyst version is V6.67. Need help to understand what is going on. Thanks in advance.PS: I attached a presentation to help the understanding of the issue.Near ShadingsOrientationReport Link to comment Share on other sites More sharing options...
Sylvain Pepoli Posted January 10, 2018 Share Posted January 10, 2018 Hello brunok,The orientation is defined by the normal of the PV fields plane, in the global referential. So it is a combination of the field's tilt, azimuth and baseslope.It seems like you placed your fields on the rooftop and then rotated the whole scene, so in this case the baseslope should be the roof angle.Placing your fields on the ground would get you a -23° azimuth, but here they're tilted along the roof.Which orientations does PVsyst detect when you open the orientations tool (Tools -> Edit orientations) ? It seems like you defined two separate orientations (on each side of roofs) but you only get one in the end ? Link to comment Share on other sites More sharing options...
mubashir Posted February 6, 2022 Share Posted February 6, 2022 I am encountering the same error The orientation tab is showing the wrong orientation of the panels. Please clarify which panel orientation has been considered in the simulation. Link to comment Share on other sites More sharing options...
Sylvain Pepoli Posted February 24, 2022 Share Posted February 24, 2022 Hello,Could you please give more details because the screenshots all show an orientation of 10°/43° which seems correct ? Link to comment Share on other sites More sharing options...
Irakli Bezhuashvili Posted May 2 Share Posted May 2 Thank you for the help. I have one more question. Is it possible to change "Plane Azimuth" and "Plane tilt" by editing ? Please see the attached screen where this data are not editable. Link to comment Share on other sites More sharing options...
Muhammed Sarikaya Posted May 3 Share Posted May 3 Dear Irakli, It's possible to change these values. If you select all the tables, your modification will apply to all the selected tables. To modify the tilt, for example, just click in the box where you want to change the value, and it will be applied. Regards, Muhammed Sarikaya Link to comment Share on other sites More sharing options...
Irakli Bezhuashvili Posted May 6 Share Posted May 6 Thank you for prompt reply. The box which I want to change is not editable, I click but is has no affect. Please see the attached file "Screenshot_1" where I indicated with arrow the field which I want to modify (Nominal-real tilt and azimuth). Nominal tilt and nominal azimuth has modification function, but I want the nominal tilt and nominal azimuth to be equal to real tilt and azimuth, That is why I want to change real tilt and azimuth. For example table filed #104 has plane azimuth 5.9 which has to be 0 and plane tilt is 30.2 which has to be 30.0. Thank you Link to comment Share on other sites More sharing options...
Muhammed Sarikaya Posted May 7 Share Posted May 7 Dear Irakli, Indeed, these values cannot be edited. When working on a project with complex topography in PVsyst, the solar tables installed in the field will often have actual azimuth and tilt values that differ from the expected nominal values. This occurs because the software automatically adjusts each table to the local topography, resulting in natural variations in these angles. Can you confirm that you are working with a topography? Also, could you explain why you want to modify these values? Regards, Muhammed Sarikaya Link to comment Share on other sites More sharing options...
Irakli Bezhuashvili Posted May 7 Share Posted May 7 Yes I works with topography. The PVsyst aligned solar tables to the field surface based on the topo map, but in reality we will have all the tables with tilt 30 and azimuth 0 (we plan to design the support structures in this way). changed/aligned azimuth and tilt reduces electricity generation. Link to comment Share on other sites More sharing options...
Muhammed Sarikaya Posted May 7 Share Posted May 7 Dear Irakli, In this case, don't use the topography in PVsyst if you plan to adjust all the supports to have the exact same tilt and azimuth. Regards, Muhammed Sarikaya Link to comment Share on other sites More sharing options...
Zainol Posted June 5 Share Posted June 5 Dear Muhamed Sarikaya. Please be informed we need to use topography for near shading consideration. All the supports can be adjusted at site to have the exact same tilt and azimuth even with uneven topography. Appreciate if you can inform how to change the Azimuth and Tilt to be the same as the nominal azimuth and tilt for panels on uneven topography. Thank you. Link to comment Share on other sites More sharing options...
Muhammed Sarikaya Posted June 5 Share Posted June 5 Dear Zainol, You can modify the baseline slope. In the near shading window, click on 'Tools' and then on 'List and Management of Objects.' A new window will appear. In the 'Baseline Slope' column, set everything to 0. This way, you will have the same nominal azimuth and tilt that you defined initially. Regards, Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now