<p>Global warming and climate change in the world cause extreme weather events to occur and as a result, energy resources are affected. Especially in today’s world where renewable energy sources are very popular, the inputs used for these sources are affected by climate change. In this study, considering this situation, it is investigated for the first time whether wind speed, which is the most critical input for wind energy conversion systems, is affected by climate change. For this purpose, eight provinces in Turkey were selected as study points and multifractal detrended fluctuation analysis was applied to 20 years of wind speed data in these provinces. Thus, multifractal spectra and generalized Hurst exponents were obtained. In the evaluations, it was observed that there was a high degree of fragility in both periods, especially in the power series, and broader spectra were obtained for them. The proposed analysis model was found to help test the impact of climate change on renewable energy parameters. It was determined that the multifractal characteristics of wind speed and wind power series could not be preserved over time.</p>