How to Apply Subhourly Clipping Loss With Hourly Meteo Data

[kjs55]

Hello,

Would you please point me to the PVsyst v8 Help Documentation for how to apply the subhourly clipping loss when all you have is hourly meteorological (aka solar resource) data for a given site (which is almost always the case)?

I was just reading this PVsyst Help Documentation <https://www.pvsyst.com/help/physical-models-used/grid-inverter/subhourly-clipping-correction.html>, and I noticed this sentence: "The only prerequisite to apply the model is to have a MET file that has been generated using sub-hourly irradiance data."

Are you aware that this "only" prerequisite is almost never available, in the standard PVsyst modeling use case? Therefore, I think I must be missing or misreading something. I'm hoping you can please explain this to me here and point me to the relevant PVsyst Help Documentation that I'm presently unable to easily find.

Thank you.

[Linda Thoren]

Dear kjs55,

Thank you for your input. PVsyst is not a weather provider, but a simulation software. Several data providers supply sub-hourly values that you are welcome to import as a custom file and apply the sub-hourly clipping correction. 

Kind regards

[Li-ESS]

On 2/4/2025 at 1:03 PM, Linda Thoren said:

Dear kjs55,

Thank you for your input. PVsyst is not a weather provider, but a simulation software. Several data providers supply sub-hourly values that you are welcome to import as a custom file and apply the sub-hourly clipping correction. 

Kind regards

Hi Linda,

a general question, can PVsyst 8 also generate sub-hourly energy generation time series, if the custom file is also sub-hourly data? 

Kind regards