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Techno-Economic Evaluation and Optimization of Grid Connected PV and Wind Generating System for Riyadh City

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Document pages: 18 pages

Abstract: Therisks and challenges faced by human society at the moment are global warming,climate change and pollution. In addition to their effect on the atmosphere,the quantity of fossil fuels is beginning to decrease, and countries have takensteps to encourage greater use of renewable energy resources. This articleexplores the feasibility of supplying electricity from a hybrid power system(HPS) comprising wind photovoltaic (PV) and batteries. Taking into accountresidential buildings that consume the largest portion of energy in Saudi grid, SaudiArabia, Riyadh is the preferred city with distinctive geographical and climaticconditions. The hourly electricity demand data must be over 8760 hours during a1-year analysis in order to assess the optimum design and operational planningof the HPS. The economic analysis is carried out by applying HOMER software onthe basis of net present cost (NPC), energy cost (COE) and the renewablefraction for all situations. In addition, to specify the effect of fuel costson the scheme, sensitivity tests are carried out by considering two separatetariff rates for residential consumers. The results of the economic analysisshow that current tariff is not economic to useHSP under warm and temperate climate conditions compare to using electricityfrom grid and the expected forecasted tariff shows it’s economic to use HSPcompare to grid electricity.

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