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Öğe The Effect of Economic Conditions on Optimal Sizing and Feasibility of Hybrid Power System(Institute of Electrical and Electronics Engineers Inc., 2023) Terkes, M.; Demirci, A.; Ozturk, Z.; Ozturk, A.; Tosun, S.; Andic, C.Clean energy-focused hybrid power systems (HPS) can help countries with their sustainable development plans. Optimal sizing of HPS depending on the varying countries' economic conditions in a reliable and robust strategy can reduce investment risks. This study performed optimal PV-DG-ESS based HPS sizing and feasibility analyses for Antalya, considering Türkiye's last ten years' interest and inflation rates, energy purchase costs, diesel costs, HPS investment, and operating costs. Moreover, the scope of the study is extended by sensitivity analyses on solar radiation, interest, and inflation. The results show that the proposed optimal HPS can reduce electricity purchase costs by up to $143.8 thousand/year and increase the renewable fraction by up to 74%, considering the current economic and climatic conditions. According to the sensitivity analysis, the grid was preferred in scenarios where solar radiation was lower than 5.5 kWh/m2/day. The research revealed the impact of economic conditions on HPS and is expected to guide investors and policymakers. © 2023 IEEE.Öğe Strategic Integration of Second-Life Batteries: Incentive Mechanisms for Boosting Community Energy Self-Consumption(Institute of Electrical and Electronics Engineers Inc., 2024) Terkes, M.; Demirci, A.; Ozturk, Z.; Cali, U.Energy storage systems (ESS) can provide flexible and reliable energy management due to the rapid development of distributed renewable energy systems (RES). Second-life batteries (SLB) can overcome the environmental concerns and high investment costs related to fresh battery production. However, the integration of storage-based RES poses several challenges regarding optimal control strategy, power quality, and participation in the energy market. These questions can be listed as follows: Which economic strategy favors the integration of SLB-based storage? Which policy among the individual financial strategies can further improve the decision criteria in favor of the prosumer without causing power quality issues? Which measures should be taken, and which hybrid incentive mechanism should be proposed to complement the lacking feasibility performance of individual economic plans? To fill this gap, this study evaluates the feasibility of different incentive policies, individual or hybrid, considering prosumers’ self-consumption. Moreover, sensitivity analyses consider carbon tax (CT) and investment subsidies (INVs) for prosumers. The results show that the high purchase price of SLBs can be eliminated, provided that the 20% above investment subsidy for prosumers purchasing cheaper electricity. Adopting 1 $/t CT could reduce carbon emissions by up to 1.9 t/yr, and a 1% total investment subsidy could increase photovoltaic panel (PV) capacity by 11.28 kW. The prosumer benefit under net metering can be maximized if the total INV and CT are managed at 20% and 40 $/t in Türkiye. This study encourages investors and prosumers to sensibly plan a shared ESS in individual and hybrid incentive mechanisms. Authors