Electric Power ›› 2023, Vol. 56 ›› Issue (5): 1-10.DOI: 10.11930/j.issn.1004-9649.202211009

• Special Contribution • Previous Articles     Next Articles

Analysis of Spatial and Temporal Variation Character of Climate Risks of Wind and Solar Resources in China

SUN Jingbo1, WANG Yang2, YANG Xiaofan1, LU Zheng1, HE Yuan1, CHAO Qingchen2   

  1. 1. State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China;
    2. National Climate Center, Beijing 100081, China
  • Received:2022-11-02 Revised:2023-02-06 Accepted:2023-01-31 Online:2023-05-23 Published:2023-05-28
  • Supported by:
    This work is supported by National Natural Science Foundation of China (No.42175191), National Key R&D Program of China (Research and Development and Application Demonstration of Ecological Impact and Response Technology of Scenic Resources Development, No.2022YFF1303400), China Meteorological Administration (CMA) Innovation and Development Project (Research on Climate Risk of Important Departments and Cities Under the Target of Carbon Emission Reaching Peak in Advance, No.CXFZ2022J048), Beijing Normal University MOE Engineering Research Center of Desertification and Blown-Sand Control Project (No.2022-A13-1), Science and Technology Project of SGCC (Research on Comprehensive Balance Analysis and Decision-Making Technology of Primary and Secondary Energy for Carbon Peak and Carbon Neutral Targets, No.5100-202155294A-0-0-00), Science and Technology Project of National Energy Group (Simulation of Energy Storage Application Scenarios and Research on National Energy Group's Development Strategy, No.GJNY-21-143).

Abstract: The proportion of renewable energy (represented by wind and solar energy) in the future energy structure of China should be substantially increased to achieve the goals of carbon peak and carbon neutrality. However, wind and solar power generation is largely affected by local climate conditions, with intermittent and volatile characteristics. In recent years, extreme weather and climate events have become more frequent and stronger and have shown concurrency, which seriously restricts the effective utilization of wind and solar resources. Therefore, the research on climate risks of wind and solar resources is of great theoretical and practical significance for improving the utilization of wind and solar resources and reducing the risks of renewable energy. This study quantitatively analyzes the spatial and temporal characteristics of scarce wind and light scenarios in China on the basis of a high-resolution database of wind and solar resources from 2007 to 2014. The analysis is based on aspects such as the degree, range, duration, and frequency of inefficient wind and solar output. The results show that the current distribution of scarce wind and light scenarios demonstrates prominent seasonal and regional differences. The climate risk of solar and wind resources mainly occurs in autumn and winter. The frequent scarce wind and light scenarios mainly occur in Xinjiang, Sichuan, and the middle reaches of the Yangtze River. This study could provide a scientific basis for future site selection of wind and solar power stations and regional renewable energy planning in China.

Key words: wind energy, solar energy, climate risk of solar and wind resources, spatial and temporal distribution, China