August 2, 20188 yr comment_1822 Dear Hayder Ali, This can always be the case if you compare the simulation results with current results. Especially if the irradiation data differ. I assume you have used the climate data which are coming from the program. They are mean values of 20 years. But if the irradiation of the current year is much higher than the mean you have lower yield in the simulation compared to the current production. If you really want to compare the simulation with the reality you have to use irradiation data from the specific year. But you can send your project file to our support team (hotline@valentin-software.com). They can take alook at it and see if they can find some generell mistakes in the planning. Best regards Sixten Report
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