dtarin

Have you placed the modules on top of a building or some object in PVsyst? Looks to me that there is intersection between an object and the modules.

Secondary

First solar modules have a linear response when shading is perpendicular to the cells. For flat sites and uniform shading, select linear shading. If there is terrain shading or other non-uniform shading, it may be appropriate to select a partition according to the string size with a low electrical effect, but ultimately depends on your site conditions and installation type.

1P trackers typically between 1.4 and 1.6m from the ground, 2P trackers start 2m, but it of course depends on the project specific requirements. 18" of clearance from ground at max tilt is common.

Increase the number of modules to account for the correct total tracker length or approximately close. The difference in shading calculations with and without actual gaps is not significant.

You have answered your own question, temperature is considered in the output and losses due to temperature are shown in the simulation reports.

Each inverter will need to be in a separate sub-array.

What do you mean by unlimited single axis tracking system? Did you model this in the 3D scene editor, or did you use the unlimited sheds method?

Depends on the size of the plant and if there is an O&M service involved, etc. If its utility-scale with O&M (guaranteed response times, etc.), 2% is good. If it is a small site, you might want higher.

It is set by the user under detailed losses.

Horizon files need two columns, azimuth and height in degrees. Horizon data is not usually from a TMY weather file. For horizon data you can use PVGIS from within PVsyst. The PVsyst format there is for when you have Horizon data from another source.

Place the OND file here, restart PVsyst \PVSyst Projects\PVsyst7.0_Data\ComposPV\Inverters

I have created a dummy OND file for power sharing and modeled together with a non-modified OND file. The non-mppt share inverter is showing up in the power sharing list and giving an error. I dont think the inverter should be listed in power sharing. The inverter is listed in the error and noted below with 1 mppt

TMY p50 for standard energy estimates. you can also import the time-series data if you wish to run time-series models.

In PVsyst, the inputs for HV transformer are in MVA. Ensure that the percentages shown match what you have there. PVsyst should then calculate correctly. Your MV waterfall loss looks appropriate for the inputs.

Go to advanced sim > output file, select to create a file, select the variables you wish to include. Then, go to batch sim, set up your items there, and confirm the output variables there in the last tab.

Grid connected PV system. After entering in your system and losses, under advanced simulation, you can run batch mode to run multiple simulations and specify the tilt angle to use. Output the results to excel file (.csv).

Run yearly simulations at every tilt angle, analyze the 8760 at each hour to determine tilt associated with desired current.

In the heterogeneous array tool, we can select modules at a given string size and view the graph, but it would be very useful if we could also export this data to csv, similar to how we can when viewing the graphs in the PAN file. If there were the ability to select string size and # of strings in parallel from the PAN file with the different variable options that are there, that would be even better.

I do not think there is anywhere (where someone would build solar) that has a low temperature of 30 degrees C, and I wouldn't recommend forcing the design to accommodate what the customer thinks is correct. As Michele noted, you are not concerned with average site temperature, but the lowest temperature at which there may be sufficient irradiance. If you design to 30 degrees C, your inverters will most likely have frequent start-up issues and the warranty of all components will be in jeopardy. That is not a 1,500V design.

The best way for Autocad is assuming that you have contour lines, Remove/freeze everything from the drawing but the topography (contour lines) Explode down to minimal size (each polyline will breakdown to have a segment of three points) Run dataextraction command, select "line", and select the data for "Start X, Start Y, Start Z", export to csv If your drawing is in feet, convert to meters for PVsyst, save into .CSV value with one header row, X, Y, Z Import into PVsyst. You may need to take a screenshot of the autocad drawing with terrain and with modules and import also into PVsyst so that you can then line everything up in the shade scene.

Create two separate variants, they cannot be modeled together. You can export the final outputs to excel and combine.

Determine the total, weighted loss fraction and use that. PVsyst will auto-calculate length based on the wire size. Let it do that, as long as the loss % is correct, and you end up with a representative value in the waterfall.