Abstract Due to the factors such as technological developments, industrialization, population growth, etc. the energy need in the world is constantly increasing and the available resources are insufficient to meet this need. Therefore, the search for alternative energy sources has accelerated recently and this situation has directed the countries to renewable energy. Although the use of renewable energy had gone until before of the first industrial revolution, it has become a very popular area today due to significantly eliminating the increasing concerns related to the security of energy supply, being environmentally friendly, and has positive economic effects. For this reason, nowadays countries form their strategies, policies, and goals related to the energy sector with a focus on renewable energy and make serious investments in this field. Owing to the current importance of the issue, in this study it is aimed to determine how the optimum investment decisions could be taken at the renewable energy sector in Turkey. Five renewable energy alternatives which are hydropower, solar energy, wind energy, geothermal energy and biomass energy, were taken into consideration. First of all, using the Fuzzy Analytical Hierarchy Process and the Evaluation Based on Distance from Average Solution methods, the importance weights of renewable energy alternatives were found and they were prioritized. Afterwards, the risks of renewable energy alternatives were found with the Fuzzy Failure Mode and Effect Analysis. Finally, the best alternatives were determined by comparing the evaluation results. When the results of study were analyzed it was clearly seen Turkey should focus on hydropower and wind energy in renewable energy investments.

中文翻译：

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基于模糊层次分析法-EDAS-模糊FMEA方法的土耳其可再生能源投资决策分析

摘要 由于技术发展、工业化、人口增长等因素，世界能源需求不断增加，可用资源不足以满足这一需求。因此，近来对替代能源的探索加速，这种情况促使各国转向可再生能源。虽然可再生能源的使用在第一次工业革命之前就已经存在，但由于大大消除了人们对能源供应安全、环境友好和具有积极经济效应的日益关注，如今它已成为一个非常受欢迎的领域。因此，当今各国以可再生能源为重点制定了与能源部门相关的战略、政策和目标，并在该领域进行了认真的投资。鉴于该问题当前的重要性，本研究旨在确定如何在土耳其的可再生能源部门做出最佳投资决策。考虑了水电、太阳能、风能、地热能和生物质能五种可再生能源替代方案。首先，利用模糊层次分析法和基于距离平均解的评估方法，找到可再生能源替代方案的重要性权重并对其进行优先排序。随后，通过模糊失效模式和影响分析发现了可再生能源替代品的风险。最后，通过比较评估结果确定最佳替代方案。