Janani Posted May 13, 2019 Share Posted May 13, 2019 Hi,I am estimating generation for a region near Himalayas in India. as the location is prone to snow fall, pl let me know how to account loss due to snow loading on PV modules.Should it be factored in soiling?..Pl help.Thank you Link to comment Share on other sites More sharing options...
fredericr Posted May 13, 2019 Share Posted May 13, 2019 Yes, losses due to snow should be added to the soiling losses. Link to comment Share on other sites More sharing options...
Janani Posted May 14, 2019 Author Share Posted May 14, 2019 ok. But it is seasonal. Hence is there any PVsyst's recommendation on how much % loss to be considered for snow cover? Link to comment Share on other sites More sharing options...
fredericr Posted May 14, 2019 Share Posted May 14, 2019 You need to apply soiling on a monthly basis. It is not unusual to have 50% snow losses for peak winter months if you are in a snowy location and if your tilt is low. There are a few studies available online that can help you estimate snow losses but it is very location and system dependent. We operate projects in Canada and Japan and it’s always been a challenge to model snow losses. Thankfully winter months in snowy location are not high production to start with. Check this from NREL https://www.nrel.gov/docs/fy17osti/68705.pdfThis from DNV https://solarprofessional.com/modeling-losses-due-to-snowfall Link to comment Share on other sites More sharing options...
Janani Posted May 17, 2019 Author Share Posted May 17, 2019 Noted.Kindly request PVsyst to include snow loading effect in energy estimation with the input of snowfall pattern and snow depth. Thank You Link to comment Share on other sites More sharing options...
winothkanna Posted February 16, 2022 Share Posted February 16, 2022 You need to apply soiling on a monthly basis. It is not unusual to have 50% snow losses for peak winter months if you are in a snowy location and if your tilt is low. There are a few studies available online that can help you estimate snow losses but it is very location and system dependent. We operate projects in Canada and Japan and it’s always been a challenge to model snow losses. Thankfully winter months in snowy location are not high production to start with. Check this from NREL https://www.nrel.gov/docs/fy17osti/68705.pdfThis from DNV https://solarprofessional.com/modeling-losses-due-to-snowfall Hi Fredericr, as you mentioned in the post that you operate projects in Canada. May i know how much snow loss you considered for HSAT. Link to comment Share on other sites More sharing options...
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