Impact of the spectrum, location and interconnection between solar cells in the annual production of photovoltaic energies in photovoltaic concentration systems

In this work we study the use of independently connected tandem solar cells (MJSC-IC) which are less sensitive to changes in the solar spectrum than series connected tandem solar cells (MJSC-SC). The efficiency of the maximum annual energy production has been calculated taking into account the variation in the spectrum and the efficiency of the cells. The results confirm the MJSC-IC have an annual energy production efficiency greater than the MJSC-SC. These suggest that it may be better to develop a 5-union MJSC-IC rather than increase the number of solar cells from 5 to 6 in the MJSC-SCs.