Shashank Sharma Posted September 29, 2023 Posted September 29, 2023 Hello PV, I want to know that, can we find out P90 monthly values in our PV syst report. If no, there is any calculation or general formula for it.
Linda Thoren Posted September 29, 2023 Posted September 29, 2023 Dear Shashank Sharma, P50-P90 estimations rely on yearly data. Calculating P90 for monthly values is not advised. Yearly weather data has variation (around 3-4% RMS), while monthly data can vary significantly year-to-year, leading to unreliable probability profiles for each month. You can read more about the P50-P90 evaluations in the Help in the link below: https://www.pvsyst.com/help/index.html?p50_p90evaluations.htm Regards
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