Hello everyone, I am new to the PVsyst and based on my understanding, the soiling losses would be varied due to different locations. Instead of using default values, how do I find/input soiling loss month to month? I was wondering if I could find any database or websites would help me identify monthly soiling losses. - For example, if I want to create a PVsyst simulation report for a solar project in Toronto area, how do I find and input soiling losses from January to December? :shock: :shock: Thank you so much, looking forward to hearing any feedbacks/suggestions. Have a good one, Edward