Generating sub-hourly meteo data (e.g., 15-minute resolution) in PVsyst 8.1 – Meteo databases and import options

[Geovera]

Hi PVSYST Team,

Thank you for the implementation of the sub-hourly simulation feature in PVsyst 8.1. It is something many of us have been waiting for.

I am currently trying to generate meteorological data with a 15-minute resolution using different sources in PVsyst, and I have tested the following approaches:

• Pull with Meteonorm 9: it seems to only allow hourly data or minute-level data. While minute data could technically work, generating datasets at that resolution can become quite heavy and time-consuming for large projects with complex topography.
• Synthetic data generation: https://www.pvsyst.com/help/meteo-database/synthetic-data-generation/execute-generation.html
  From what I can see, this option also only allows hourly or 1-minute frequency.

At the moment, the only way I have found to work with 15-minute data is by using the “Import a custom file” option. With the new import tool it is possible to specify a 15-minute timestep, which works well if the dataset already exists externally.

My question is the following:

Is there any option within PVsyst meteo databases (e.g., Meteonorm or tool synthetic generation) to directly generate sub-hourly data with a specific timestep such as 10, 15, or 30 minutes, instead of only hourly or 1-minute resolution?

Or is importing a custom dataset currently the only workflow for these intermediate time resolutions?

Thanks in advance for any guidance.

[Linda Thoren]

Hello,

Indeed it is on our roadmap to quickly implement an option to run the simulation in additional time steps intervals, for instance 15minutes. This will indeed allow for the simulation to run faster. At the moment, a good workaround is to to create a custom file with 15 minute data.