Pvsyst Tutorial

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PV-SYST Tutorials
All the tutorials in this series will teach you how to use the basic functions of PV-SYST to design a PV system. This set of tutorials works through how to use the software in both preliminary and project design modes. The basis for this tutorial will be to design a PV system that fits on the area defined by the LDK roof of the model used in the Ecotect_Tutorial. A 30 day full functioning demo version of the program can be downloaded from the PV-SYST website.

http://www.pvsyst.com/

Contents
PV-SYST Tutorials .................................................................................................................................... 1 Preliminary Design .............................................................................................................................. 2 Project Design ..................................................................................................................................... 5

Preliminary Design
The following presents a brief description of how to undertake an analysis via the “Preliminary design” mode in PV-SYST. Figure 1 presents the opening screen for PV-SYST upon starting the program. From this initial window you can choose whether to undertake an analysis via “Preliminary design” or “Project design” mode.

Figure 1: Opening screen for PV-SYST

1. Start PV-SYST from Start>>All Programs>>PV-SYST. The icon for PV-SYST is presented to the right.
2. Select “Preliminary Design” from the available options. This will bring up a new panel called “System”.
3. Select “Grid-Connected” in the System panel. Then select OK to continue. 4. A new pop-up window titled “Grid system presizing project” will appear, as presented in Figure 2. Click on the “Location” button to continue.

5. A 2nd pop-up window will appear called project’s location. In the Project name call the file “PV-SYST tutorial location Melbourne”
6. Under the “Location” heading change the “Site” entry to “Melbourne Meteonorm”. 7. Leave the other default parameters, and click OK to continue. Note: In this preliminary design we are going to assume that there is no near or far shading on our designed PV system.

8. In the “Grid system presizing project” window select the “System” button. 9. This opens another pop-up window titled “System Specifications”

Note: In preliminary design mode you have three options to design the system. System size can be set by 1) Active area; 2) Nominal Power or 3) Annual yield.

Figure 2: Pop-up window Grid system presizing project

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Select Active area (m2) as the method to determine the system size. This will bring up a field titled “Area” enter the area 54m2. This is the area of the LDK roof. Enter 3° for tilt and 180 for Azimuth, i.e. indicating that the roof is sloping towards south. Click the “Next” button to continue.

Note: Within the “System Specification” window you can quickly view how your system causes losses in comparison to a system with optimum tilt and orientation. In this scenario the loss with respect to the optimum is 12.2%.

14. In the next window of the “System Specification” wizard select the module type and specifications. For this tutorial select:
a. Module Type: Standard
b. Technology: Polycrystalline
c. Mounting disposition: Façade or tilt roof
d. Ventilation property: Ventilation
e. Click OK to continue. This will take you back to the “Grid system presizing project window”
15. Select “Results” in the “Grid system presizing project window”. A new pop-up window titled results will appear.

16. The default results page appears as presented in Figure 3. From this window you can see the nominal power and annual yield from the system.
17. Click on the third graphical icon button (which looks like a table) located down the left hand side of the results page, as highlighted by the blue circle in Figure 3. This will bring up the results in table format.

18. The results page should now display...
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