This study aims at identifying and ranking the barriers to the development of renewable energy investments in Turkiye. To do that, we first build a list of 30 barriers under 4 main categories based on experts' views on the Turkish energy sector. We then analyze these barriers using the fuzzy AHP method. Our results show that the order of importance of the main barriers is as follows: political and regulatory barriers, technical barriers, economic and financial barriers, and social barriers. As for sub-barriers, lengthy procedures and legal processes, inadequate regulatory framework, lack of harmonized renewable energy policies, lack of R&D facilities and funds, and lack of political support mechanism are found to be the most significant ones. Our results imply that Turkiye needs to implement reforms both in political and economic spheres to develop renewable energy sector.