利用新型遮蔽技术评估风力涡轮机与太阳能光伏混合系统的土地双重利用——以埃及地图为案例研究

Abstract As the adoption of renewable energy is on the rise all around the world, the use of wind and solar energy is increasing rapidly. Most wind or solar farms only use a single energy resource for generation on a specific area of land. So, this study presents a techno-enviro-economic evaluation of using both horizontal axis wind turbines and photovoltaic panels on the same land area to increase land utilisation, it is presented on the map of Egypt as a case study. The area of the wind turbine shadows on the solar photovoltaic panels are estimated using new technique of image processing with Python code. An energy model was developed on MATLAB Simulink to analyse the yield energy generation. The dual use of land is compared to cases using solar only, and wind only for wind turbines ranging from 0.75 MW to 3 MW. The results demonstrate that the dual use land produces the highest amount of energy yearly in 41 % of the governorates when using the 0.75 MW turbine. Then, the dual use land produces the highest amount of energy in 100 % of the governorates when using the 1.5 MW and 3 MW wind turbines. This shows that the bigger the size of the turbines, the lesser the effect of the shadows on the overall energy being produced. In terms of economic viability, the best performing case used solar photovoltaic only in Aswan governorate with a total energy generation of 594,856 MWh and total CO 2 emission reduction of 10,351 tonnes over the 25 years project lifetime. It has an LCOE of 0.01050 $/kWh, a payback period of 8.96 years, and a capital cost of $3,391,956. In conclusion, the study results show that dual-use land can improve the economic viability of projects using only wind turbines for energy generation in Egypt.