Research of the Crimean Peninsula wind power resources based on hourly data from ERA5 reanalysis

The climatic assessment of the wind resources of the Crimean Peninsula is carried out using the hourly ERA5 data for the 40-year period 1980-2019. It is established that average wind speed in central Crimea is 2–6 m/s. It is lower than on the western coast (4–8 m/s) and on the territory of the Kerch Peninsula (5–9 m/s). It is found that the Kerch Peninsula is the most favorable area for wind generation. The frequency of wind speed for rated output of wind turbines in that region is 15–17% at 10 m and 37–38% at 100 m. The frequency of ineffective wind conditions for wind generation, when the wind speed is insufficient to start a wind turbine, does not exceed 17-22% at 10 m and 11-12% at 100 m. In central Crimea and the Southern Coast of Crimea, the frequency of ineffective wind conditions at a height of 10 m exceeds 40% per year. Also, as a result of the analysis of the diurnal variation, it is found that at 10 m, in June the wind speed in the daytime is higher by average 21% and in December by 6%. The diurnal variation is not noticeably pronounced at a height of 10 m. The revealed seasonal features of the change in wind speed at heights of 10 and 100 m characterize its increase by 31–35% in the winter season compared to the summer. Some local specificity of the Crimea relief, especially mountain ranges, is not taken into account in the work, which is due to insufficient spatial resolution of the reanalysis.