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Am I right that you have to purchase the PVSOL "Premium" package to get the 3D environment to be able to have flat roof panel to panel shading included in the simulation? edit: update Reading back on features of the regular 900 euro PV*SOL and the 1300 euro Premium version, and my conversation with Martin, which is quoted here, I must conclude that the regular PV*SOL does NOT perform flat roof panel row-to-row shading calculation, although all information is present; no 3D drawing is necessary,. Actually, 3D drawing is in most cases just too much work. This is my sobering conclusion for an otherwise great software package.

Am I right that you have to purchase the PVSOL "Premium" package to get the 3D environment to be able to have flat roof panel to panel shading included in the simulation?

This tread is about the warning about grid tarif country, so lets concentrate on that. For the Netherlands, it is the _only_ choice that can be made, afaik. The German "Gebaudeanlage" did worry me also a bit that this might not be right, but there is no alternative. But that is not the only part where I came across untranslated print, which is easily forgiven, for this fine piece of software with such large amount of data that is never going to be complete however hard you guys work on it. Being a technical guy, the financial analysis part in not my prime interest and the large array of possibilities with unknown effects and limitations, result in me not being too bothered about possible incorrectness on this area. Rob.

Yes go ahead and post so that anyone can learn.

So, actually you have 4 strings of 17 panels, which you connect to 2 MPP's. Each MPP has "2 strings of 17 modules". That should be a selectable without using polystring

Hi Martin, While unrelated to my other topic I posted (Flat roof panel shading not included), but the project I just shared there with you shows this behaviour as well. Rob.

Martin, I have modified one of my test projects so that the panels are only 5 cm behind each other, at a 25 degree inclination angle, then reduced the number of panels back to the original system size of 18 panels (they get automatically adjusted to fix maximum on roof), and it still generates as much energy as before. Specific annual yield is 981.17 kWh/kWp, which is pritty good for the Netherlands, especially if you could fit twice as many panels on flat roof as would normally possible. I'll send the project file with PM.

I've got an always present warning message "The selected from-grid tariff is not valid for the country in which the climate data record is located" However, I have selected - Climate data country Netherlands: Eindhoven RNLAFB NLD - Tariff country Netherlands (there is only one possibility) What could be wrong?

Hi all, When I place panels on flat roof and change the row distance the total generated energy does not change. I can place them 10cm or 1m apart, it makes absolute no difference, even though in practice the 2nd and following rows will be in the shadow. Why is this not included in the simulation or am I missing something? Rob.