This paper addresses the potential impacts of grid-connected photovoltaic (PV) systems on electrical networks. The paper starts by emphasizing the increased importance of generating electricity from PV arrays. The growth in PV installed capacity worldwide is elaborated; futuristic expansion plans for several countries as well as existing PV projects worldwide are highlighted. The paper continues by evaluating the most important impacts of PV electricity on electrical networks. Finally, the authors summarize the literature's findings regarding the maximum allowable PV penetration that can be safely integrated into existing networks.
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