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PostPosted: Thu Apr 16, 2020 6:43 pm 

Joined: Fri Oct 17, 2014 4:23 pm
Posts: 2

I have a large number of licenses, and a growing limitation we are finding is the inability to run true sub-hourly simulations at 15 or 30 minute increments. For long-term yield of a PV-only plant with a fixed price PPA hourly is fine, but adding storage, variable market pricing, and working in regions with extremely variable irradiance means additional time fidelity is needed, and I have to go to other tools to get it.

We have high quality weather data coming in now at 30 minute intervals for nearly every location on earth, and site-specific data down to 1 minute intervals. I'd love for PVsyst to keep up with the improvements in meteo resource data, especially if we are pending a new major update with additional costs for annual licensing.

Thanks - Sam

PostPosted: Fri Apr 17, 2020 7:37 pm 

Joined: Tue Jul 03, 2018 7:39 pm
Posts: 5
I/we fully support this topic/request for an update. Many other tools on the market now support 1/5/15/30 min data which is incredibly important for capturing variable irradiance.

For example, running a test/evaluation in alignment with IEC 61724-3 will not be very accurate without subhourly considerations, particularly at higher dc/ac ratios.


PostPosted: Thu Sep 17, 2020 10:22 am 

Joined: Thu Sep 17, 2020 10:18 am
Posts: 1
Is this something that is officially on the PVSyst development plan, is there a roadmap or timeframe for this to be implemented?

It does seem a bit ridiculous that we are in 2020 and still only have a resolution of 1-hour in PVSyst modelling...

PostPosted: Wed Oct 21, 2020 9:07 am 

Joined: Fri Oct 12, 2018 7:18 pm
Posts: 2
Dear PVSyst team,

is there any planning in the software development within next 12 months to start providing sub-hourly calculations ?

We have a real need for such feature in our project, i.e. 5-minutes time resolution, possibly even down to 1-minute depending on the project progress.

Best regards,

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