Project design

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Project design

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This part aims to perform a thorough PV-system design and performance analysis using detailed hourly simulations.

These are organised in the framework of a Project, which essentially holds the geographical situation and meteorological hourly data. Optimisations and parameter analysis can be performed through different simulation runs, called variants.

 

Procedure:

NB: You have a step-by-step tutorial for creating your first project.

After choosing "Project Design" and the system type in the main window, the procedure is the following:

-        First define the Project through the "Project/Variant" button. You can also retrieve an existing project through the "File" menu.

-        For one Project  (including basically Geographic Location and Meteo, with eventual Albedo data), you can construct different system variants (as many as needed).

-        For each variant, define the plane orientation.

-        Define the System properties.

-        The program verifies the consistency of all parameters, and produces "Warnings" in Orange (acceptable for simulation) or Red (preventing simulation) LED's.

-        When available (all parameters properly defined, that is only Green or Orange LED's), press the "Simulation" button.  Red buttons or warnings indicate bad definitions which prevent the simulation.

-        When the simulation is completed, you will enter the "Results" dialog, and consult the main results on the "Report" document.

-        After simulation, each variant may be saved for further comparisons (please use "Save as" to avoid overwriting your previous variants). You are advised to define a significant description for each variant, in order to easily retrieve them in the list and to obtain a suited title in your final report.

For a given project, you are advised to first construct a rough variant keeping all parameters to their proposed default values.

In a second step, you can define the required refinements:

-        In the "System" definition panel, you can modify the "Detailed losses" (soiling, IAM, module temperature parameters, wiring resistance, module quality, mismatch,  unavailability, etc).

-        eventually define a Horizon profile  (far shadings),

-        Near shadings, that is partial shadings of near objects, which require a rather complex CAO 3D construction of the PV-field environment.

-        Module Layout for a description of the PV modules in the system, for the detailed calculation of the electrical shading losses.    

The following diagram shows an outline of the project's organization and simulation process.

 

Project_Flowchart2