Yazar "Tercan, Said Mirza" seçeneğine göre listele

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    Decision-making between hybrid renewable energy configurations and grid extension in rural areas for different climate zones
    (Pergamon-Elsevier Science Ltd, 2023) Demirci, Alpaslan; Öztürk, Ali; Tercan, Said Mirza
    The growing population and technological developments have led to irregular houses and especially industrial facilities in developing cities. Furthermore, due to social and economic factors and the increasing massive migrations, undeveloped rural projects make irregular settlements worse. Thus, the expensiveness caused by the deterioration of the supply-demand balance makes establishment or production capacity increase of industrial facilities difficult. In this study, supplying the industrial urban facilities' demand with only grid or on-grid/offgrid HPS scenarios were investigated considering expanding and relocation outside the city. Twelve industrial cities in Turkey with various climates have been evaluated using Homer (R) Pro, considering the effects of RES potential on the techno-economic parameters. The results showed that the RES potentials changed break-even distance for grid extension between 0 and 25 km. Furthermore, it has been determined that the change in the discount rate and the grid extension costs, which vary depending on the regional geographical conditions, seriously manipulate break-even distance. Particularly, it can be extended up to 55 km depending on RES potentials and grid extension capital cost. In contrast, high RES potential make unnecessary grid extension, especially where the discount rate was less than 4%. Finally, sensitivity analyses are also presented in detail.
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    Optimal sizing and feasibility analysis of second-life battery energy storage systems for community microgrids considering carbon reduction
    (Elsevier Sci Ltd, 2023) Terkes, Musa; Ozturk, Zafer; Demirci, Alpaslan; Tercan, Said Mirza
    The rapid development of distributed renewable energy has made energy storage essential for efficient operation. However, energy storage is challenging for prosumers due to high investment costs and long payback periods. The second use of batteries has been evaluated as an alternative energy storage after the first service in electric vehicles with the remaining 80% capacity. This study investigates the feasibility of using secondary-use batteries as shared storage for prosumers. Financial and technical break-even points regarding the gradually increasing carbon limit on the way to 100% renewable have been determined. The proposed method's performance has been verified by conducting sensitivity analyses regarding various environmental and economic characteristics. The self-consumption rates have been achieved by 65.9% in Spain (Madrid) and 49.9% in England (London), and 48.5% in Turkiye (Antalya) without incentive. Increasing the carbon tax by 1 $/t for high and low energy tariffs can reduce carbon emissions by 181.3 and 1607 kg/yr. The optimum sizes remain until the carbon tax threshold is 60 $/tCO2eq for high energy tariffs. After 60 $/tCO2eq, it is tended to enlarge the hybrid power system. However, severe carbon emission restriction for zero carbon targets prevents the optimum system design since the carbon reduction cost increases to 232.7-304.8 $/kg. This study encourages investors and prosumers to plan the shared energy storage system sensibly and guides governments to develop realistic incentive mechanisms to implement second-life batteries effectively.