Fragen in Bezug auf die Photovoltaik-Produktreihe.


Dynamic simulation with our photovoltaic planning program for the design and optimization of photovoltaic systems, with storage systems

Feature Matrix

Why do I get higher yields in PV*SOL® Pro 5.5 and PV*SOL® Expert 5.5 compared to previous versions when I use crystalline PV modules?

We have again compared the simulation results from PV*SOL® with actual measured PV module data. For all PV modules, for which manufacturers provide details on the part-load performance of their PV modules,  the projected yields after simulation with PV*SOL® correspond very closely with the measured results of the PV modules, due to the precise efficiency curve.

If, however, the manufacturer has not provided details, so that for these PV modules the corresponding efficiency curve in PV*SOL® must be based on standard part-load performance data, the simulation results are considerably lower compared with the measured results, at least for crystalline PV modules.

In order to meet the current development trend for crystalline PV modules, in version 5.5 of PV*SOL Expert the standard part-load performance efficiency curve has been adjusted. Therefore the yield can increase up to approximately 3% in the latitude regions of 30° and 5% in the mid latitudes (50°).

This concerns the following crystalline cell types:

- Si monocrystalline
- Si polycrystalline
- ribbon
- microcrystalline

How can I use the SolarEdge inverters and power optimizers in PV*SOL premium and PV*SOL Expert?

The SolarEdge system includes module-level DC-DC power optimizers and string inverters.

PV*SOL does not perform system design for SolarEdge inverters and power optimizers. Please use the SolarEdge Site Designer for string sizing, inverter and power optimizer selection.

Then PV*SOL can be used for energy estimation of the design obtained from the SolarEdge Site Designer.

For a detailed description please see the following PDF.

The SolarEdge Power Optimizers are only available from the program version PV*SOL Expert 6.0.

Error: „DLL nicht gefunden“ or „DLL not found“ when creating a project report in PV*SOL Pro and PV*SOL Expert

When you try to generate a project report the following message appears: „DLL nicht gefunden“ or „DLL not found“.

Please download the missing dll file here , unzip it and copy the "Projektberichtdll.dll" file to your program directory. If you are using the default directory it should be as follows:

Windows XP:

C:\Programs\Valentin EnergieSoftware\PVSOL xxx\dll\

Windows Vista/ Windows 7

C:\Program Files\Valentin EnergieSoftware\PVSOL xxx\dll\

Is it possible to simulate storage systems with lithium-ion batteries in PV*SOL and PV*SOL premium?

We are currently working on the implementation of a separate simulation model for the use of this battery type. But with a few tricks you can simulate systems with Li-Ion batteries in the current PV*SOL anf PV*SOL premium. How to enter the necessary data and an interpretation of the simulation results can be found here.

PV*SOL premium

Dynamic simulation pv program with 3D visualization and detailed shading analysis of photovoltaic systems with storage systems

How can power optimizers taken into account in the 3D visualization?

Power optimizers can be assigned to the PV system, one or several subsystems or one or several inverters in the tree view of the configuration. Please select first the configuration which should be used with power optimizers. Afterwards activate the power optimizer option by clicking on the "Star" icon.

Auswahl Leistungsoptimierer

The selected system part is now marked by a star.

PV*SOL app

Cost-free pv app for the simulation and yield calculation of grid-connected photovoltaic systems on mobile devices

Feature Matrix

How can I simulate the Danish household restriction of maximum 6 kW output?

In PV*SOL premium and PV*SOL you will find these settings in the window climate, grid and system type under AC Mains.

In PV*SOL Pro/Expert please use the Feed-in Management of the Losses window. Here you can set the maximum feed-in in percentage of the nominal maximum pv array power. If you for example have 40 modules of 200 W then your theoretical maximum power is 8 kW. In the losses window you have to enter 75 % to reach a maximum feed-in power of 6 kW.

How can I adopt PV*SOL data to an Excel sheet?

In PV*SOL advanced the Excel export can be found in the presentation window.

In PV*SOL Pro/Expert you are able to have a look at the detailed results via the “Energy and Climate Data” button. Please select your preferred data. With a click on “Table” you can switch the graph display to the table display.  Thereafter you are able to change the values to different intervals (e.g. week, month, year) by using "x-axis".  Use “File” => “Copy” to transfer the data to the clipboard. In Excel you can now insert the data with “paste”.

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