Study on Climate Suitability of Photovoltaic Power Generation in Hunan Province

Based on the solar energy resources assessment method issued by China Meteorological Administration, the total radiation amount, radiation stability, annual guarantee rate of photovoltaic power generation and annual floating dust days of 97 national surface meteorological stations and 3 radiation stations in Hunan Province from 1985 to 2015 were analyzed. Based on the climate observation data of 1985-1995, 1996-2005 and 2006-2015, the impact of climate change on the climate suitability of photovoltaic power generation in Hunan Province is analyzed. The results show that: in Hunan Province, the unsuitable areas account for 8.07% of the total area of the province, the sub suitable areas account for 14.95%, the more suitable areas account for 29.83%, and the suitable areas account for 47.15%. Dongting Lake region and Southeast Hunan Province have the most suitable climate conditions for photovoltaic power generation.