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142             Renewable Energy Devices and Systems with Simulations in MATLAB  and ANSYS ®
                                                                                ®





                       Load evaluation           Site: LAT, LON, Tilt, Azimuth



                                                     Calculate sun hours
                                                      for the given site




                                                 Calculate the needed PV power




                                      Does the PV     NO
                                    production cover the
                                    needed load power?
                                      YES


                                     Choose PV panel



                                     Choose inverter


                                      Does the PV array
                        NO           configuration fit the  NO (rearrange PV array)
                                         inverter
                                       specifications?
                                      YES
                                  Decide on the position of PV
                                 panels in order to rule out partial
                                      shading of PV cells



                                      Are there major
                                     shadows caused by
                                       other panels?



                                      Are there major
                                     shadows caused by
                                       other objects?




                                    Simulate the PV system


            FIGURE 6.8  Simple flowchart for a residential PV system design.
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