[How is the PV system size determined?]

Hello,
I’m trying to manually input the horizon profile, but I’m not sure what exactly "PV system size" refers to.

According to the tutorial, far shading is defined as being at a distance greater than 10 times the PV system size. However, it's unclear what this "system size" means. Is it 10 times the installation footprint? Or the distance from the center of the PV site to its edge?

I couldn't find any official documentation clearly explaining this, so I’d appreciate any clarification.

Please excuse any awkward phrasing—I used a translator.

 

[Does Far Shading Impact Near Shading Losses?]

Dear PVsyst Support Team,

I’ve encountered an unexpected behavior in the simulation results.

I applied different Far Sahding horizon profiles to the same project, while keeping the Near Shading scene exactly the same.
However, I noticed that the Near Shadings losses changed depending on the Far Shading configuration.

Could you please clarify:

1. Does the Far Shading (horizon line) influence the calculation of Near Shading losses?

2. If so, is this due to how diffuse or albedo components are modeled in the Near Shading algorithm?

3. Are there known changes in this behavior across different versions?

I would like to ensure that my simulations reflect shading losses accurately without unintended overlaps or misinterpretation.

Thank you for your support.

 

 

[Difference between SolarEdge and string Inverter in loss diagram.]

Thanks for reply.

I didn't change anything except inverter.

Add new variant in project and import old variant.

[Difference between SolarEdge and string Inverter in loss diagram.]

Hello,

The simulation was conducted using the same Near Shadings (*.SHD) and Horizon to find out the difference in power generation between the SolarEdge inverter and the normal string inverter.
According to the loss diagram among the simulation results, [Near-shadings:irradiance loss] is different. (SolarEdge: -5.26%, String Inverter: -6.32%)
I would like to ask if Near-shadings:irradiance loss should be the same because it was simulated using the same Nearshadings and Horizon.

SolarEdge Loss diagram

String inverter loss diagram

[mixed orientation in central inverter & mixed orientation in one string]

Dear @Michele Oliosi,

Thanks for reply my question. it is helpful for my work!

[mixed orientation in central inverter & mixed orientation in one string]

Dear @Michele Oliosi

Thanks for reply to my question again.

If there are more than 3 orientations in single central inverter, do I have to simulate modify OND file with multiple MPPTs? like link below?

I think if I modify central inverter's OND file with multi MPPTs, it is not diffrent from multi MPPT string inverter even if using power sharing. isn't it?

 

 

 

[mixed orientation in central inverter & mixed orientation in one string]

Dear @Michele Oliosi

Thanks for reply to my question.

Is it possible mixed orientation in a central inverter with one MPPT? Can you give me some information about how to give orientation each string?

[mixed orientation in central inverter & mixed orientation in one string]

Hello,

Can I simulate mixed orientation in central inverter with one MPPT

and mixed orientation in one string?

A7-03 is one string with Orientation #1, A7-10 is one string with Orientation #2, A7-02 is one string with Orientation #1, #2 (Mixed orientation in one single string)

 

Please, tell me how to simulate this project.