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Monthly P90 Values

Shashank Sharma

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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:


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