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Performance Ratio too high


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I am simulating a building with a large number of modules. The installed capacity is 4000 kWp and the simulated production is 9 760 000 kWh/year. This gives a performance ratio of 221,8 %

This performance ratio is clearly not feasible. I have simulated the same project in Solysun and the simulated production is 2 700 000 kWh/year. PR is approximately 85 %. 

How do I fix this error to have a more feasible performance ratio for my project?



Best regards,


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Hi Martin,

I understand the problem. Thanks for looking into it for me.

I am not sure what value I should input for low light values. The module I was trying to create was the new Jolywood JW-HD144N / 570 W

Can you suggest an appropriate value for this module?


I have attached the sheet for the module. 


Best regards, 


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