The main findings of this study are five. First, results show that China can obtain 12,900–15,000 TWh/yr from wind energy resources and 3100–5200 TWh/yr from solar. The upper bound of electricity generation potential from both wind and solar resources is three times the demand in 2019, and one-and-a-half times the demand expected for 2050.
The capacity factor of an onshore wind turbine in North China and Northeast China' sites can be up to 0.5, which is equivalent to more than 4000 h a year of electric power generation at full installed capacity. The total area of land with wind capacity factors greater than 0.3 exceeds 400,000 km 2 which is more than 4% of China's land.
Davidson et al. estimated that the wind energy resource potential in China is as high as 26.4 PWh but only 17.8 PWh could be developed economically. Sherman et al. estimated the onshore wind electricity generation potential in China from 1979 to 2015, and further evaluated its inter-annual change.
China's solar and wind operating capacity has soared to 1.4 TW and now accounts for 44% of the world's operating utility-scale solar and wind capacity, more than the combined total of the European Union, United States, and India.
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