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PostPosted: Wed Aug 21, 2019 5:14 am 

Joined: Wed Oct 23, 2013 12:36 am
Posts: 47
PVsyst v6.83: I see a Hidden Parameter for "Maximum PnomRatio for inverter sizing" but not for "Minimum PnomRatio for inverter sizing". Is there a technical reason why the latter is missing? Is there some other way to set the latter using some other parameter(s) in PVsyst (hidden or not)?


Last edited by kjs55 on Mon Dec 16, 2019 10:00 pm, edited 1 time in total.

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PostPosted: Thu Aug 22, 2019 12:01 am 
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Joined: Tue Oct 18, 2016 3:31 am
Posts: 303
My guess is that it has to do with equipment safety and protecting the inverters. A low pnom ratio might not function the most efficiently, but I dont think it's going to break the inverter, whereas too high of a pnom ratio can. Most inverter manufacturers only list max ratios (when they do list them) and not min ratios.


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PostPosted: Fri Aug 23, 2019 8:53 pm 

Joined: Wed Oct 23, 2013 12:36 am
Posts: 47
v6.83: I found the relevant hidden parameter: Verifications on Grid systems\The Inverter power is strongly oversized


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