[Meteonorm 8.0]

Hi,

When is the new version 8.0 of Meteonorm climate data going to be introduced into PV*sol?

[Missing ABB inverter]

Hi,

Is it temporary that ABB inverters are gone from the database?

 

/Douglas

[Performance Ratio for Bifacial modules]

Hi,

I'm designing a smaller ground based project and are currently investigating the option of bifacial vs monofacial modules. But what I don't understand is how the PR value is calculated for bifacial systems. I noticed that the PR is less for some of the bifacial systems compared to identical monofacial systems. 

When calculating the PR manually I use this equation: PR  = ("PV energy (AC) minus standby use") / ("Global Radiation at the Module" - "Reflection on the Module Interface") * module area * module efficiency )) 

But it doesn't match the PR when calculated manually for bifacial systems compared to what is presented in the report. How can I calculate the PR manually for Bifacial systems?

 

Hope to hear from you soon,
Douglas