Abstract
The development of photovoltaic power generation is of great significance to the realization of double carbon goals. The construction of photovoltaic power stations in mountain areas can save land resources. In this paper, the construction of a 31.5 MW photovoltaic power station in the mountainous area of Yunnan Province, China is analyzed in detail from the aspects of solar energy resource evaluation, and photovoltaic system design, power generation estimation, as well as economic and environmental benefits. The results show that the average sunshine radiation in this area is 5764.3 MJ/m2, which is suitable for building photovoltaic power stations. 24 units are designed with a total of 86320 photovoltaic modules, and the capacity of each module is 365 Wp. Fixed installation is adopted, and the most suitable inclination angle is 28° (south area) and 15° (north area). Correspondingly, the center distance of the front and rear arrays in the south area and north areas is 6 m and 12 m, respectively. The project is economically feasible and has significant environmental benefits.
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