The system’s performance ratio (PR)

[Anders]

I have made a simulation. In the report, a performance ratio of 93% is mentioned. I think that seems quite high, and I’m worried that I might have forgotten something in my calculations. I have attached my PV SOL file here. I have entered the number and type of panels, the type of inverter, the orientation of the panels, and the length and size of the AC and DC cables. I have deliberately not included any shading effects.
Could you please take a look at my calculation and provide some feedback? That will help me a lot. Thank you very much.

latyrusparken del 1.pvprj

[hotline_oh]

Dear Anders,

Thank you for your inquiry.

The performance ratio is realistic. There is no shading. The modules you selected have a high module efficiency of over 22 percent:

The inverter operates with efficiencies of over 98 percent and powerful MPP tracking:

There are no significant losses in the energy balance:

[hotline_oh]

Just for comparison: If you use 3D planning and place a tree in front of your building, you will get a smaller performance ratio:

Please find the example project enclosed:

latyrusparken del 1 VAL.pvprj

[Anders]

Thanks for the help.