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Minimum PnomRatio for Inverter Sizing
https://forum.pvsyst.com/viewtopic.php?f=12&t=4530
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Author:  kjs55 [ Wed Aug 21, 2019 5:14 am ]
Post subject:  Minimum PnomRatio for Inverter Sizing

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)?

Author:  dtarin [ Thu Aug 22, 2019 12:01 am ]
Post subject:  Re: Minimum PnomRatio for inverter sizing

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.

Author:  kjs55 [ Fri Aug 23, 2019 8:53 pm ]
Post subject:  Re: Minimum PnomRatio for inverter sizing

v6.83: I found the relevant hidden parameter: Verifications on Grid systems\The Inverter power is strongly oversized

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