中国沿海地区纬度跨度大，建筑冷热负荷呈多样性，考虑采用风光互补系统满足建筑冷热需求，以解决沿海岛屿地区的用能问题。为探究沿海岛屿的风光互补系统与建筑冷热需求之间的适用性情况，分析了23个沿海城市所在区域的风光资源特性和某建筑全年冷热需求特性。通过对风光互补系数、相关系数、即时负荷满足率、即时能源利用率和供需协同性的季节性对比及全年对比，多维度讨论了风光系统在不同地区的适用性，并进行聚类分析产生三类适应性情况。结果表明沿海岛屿地区风光互补程度呈一定的地区特点，随着纬度的降低，风光系统的适用性增强，且冷热需求波动越小的地区，风光互补系统的适用性越强。该研究对我国沿海地区风光混合供能系统的推广和应用具有一定的指导意义。

China's coastal areas have a large latitude span, and the cooling and heating loads of buildings are diversified. The wind-solar complementary system was considered to meet the cooling and heating needs of buildings, to solve the problem of energy use in coastal islands. To explore the applicability of the wind-solar complementary system and the cooling and heating requirements of buildings in coastal islands, this paper analyzed the characteristics of wind-solar resources in 23 coastal cities and the characteristics of the cooling and heating requirements of a building throughout the year. Based on the seasonal and annual comparisons of wind-solar complementarity coefficient, correlation coefficient, immediate load satisfaction rate, immediate energy utilization rate and supply-demand synergy, the applicability of wind-solar system in different regions was discussed in a multi-dimensional way, and three types of adaptability were generated by cluster analysis. The results show that the degree of wind-solar complementarity in coastal islands has certain regional characteristics. With the decrease of latitude, the applicability of the wind-solar complementarity system increases, and the smaller the fluctuation of cold and hot demand is, the stronger the applicability of the wind-solar complementarity system is. This study has a certain guiding significance for the promotion and application of wind-wind mixed energy supply systems in coastal areas of China.