How can I import a quarter-hourly meteo file into PVsyst?

[DiegoNav]

Good morning,

I have a quarter-hourly meteo file from a photovoltaic solar plant containing wind speed, horizontal irradiance, and ambient temperature data. I would like to know how I can import these data into PVsyst while keeping the rest of the meteo parameters from the PVsyst site file, so that I can run a simulation and check whether my plant is performing the backtracking correctly. Thank you very much.

[Auriane Canesse]

You can import 15 min data via the custom file function of PVsyst. Just note that the data will be averaged and the simulation will still be in hourly steps
https://www.pvsyst.com/help/meteo-database/import-meteo-data/custom-meteo-files/index.html
 

Now for the merging part, you cannot do this in PVsyst. If you would like to use a mix a data sources, you should first create a .CSV file that has all your data. Please be careful when doing so that your data corresponds to the same place.

But please also note that in your case having global horizontal irradiance and ambiant temperature should be enough to create a .MET file and run your simulation. There is no need to merge anything.