This paper aims to address both the sustainability and environmental issues for cellular\nbase stations in off-grid sites. For cellular network operators, decreasing the operational expenditures\nof the network and maintaining profitability are important issues. Hence, this study addresses\nthe feasibility of a solar power system based on the characteristics of South Korean solar radiation\nexposure to supply the required energy to a remote cellular base station. The HOMER is used to\ndetermine the optimum size of the system components, to perform an energy production analysis,\nand to analyse the cost details of the project. The simulation results show that the proposed solar\npower system can achieve total operational expenditure savings of up to 48.6% by using sustainable\nand clean energy. This result means a significant long-term benefit can be achieved for cellular\nnetwork operators.
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