Wang Hongye
School of Economics and Management, Dalian University of Technology, Dalian, 116024, China.
Institute of Carbon Peak and Neutrality, Dalian University of Technology, Dalian, 116024, China.
Environ Sci Pollut Res Int. 2023 Jan;30(3):7075-7086. doi: 10.1007/s11356-022-22604-w. Epub 2022 Aug 27.
In 2020, China pledged to peak its carbon emission before 2030 and achieve carbon neutrality before 2060. These ambitious carbon targets will inevitably boost the development of renewable energy generation, which has advantages from energy and water perspectives but disadvantages from land use perspective. Therefore, it is necessary to discuss the interaction among renewable energy development, water consumption as well as land use in the power sector, and determine a reasonable power-related land use range for the land administration in China. In this research, a series of multi-period, multi-regional power system optimization models with different objective functions and constraints are established to study the interrelationship among renewable energy development, water consumption, and land use in the coverage area of China Southern Power Grid from 2018 to 2030, and provide a reasonable land use range for the power sector in this region in 2030. Based on the above calculation results, the development of renewable energy promoted by energy and water policies will increase the land use of power sector under a cost objective function, and the minimum land area demand for this power system in 2030 considering energy and water policies is 24785.14 km. What is more, according to the influence of land use constraint on the total cost of power sector from 2018 to 2030, this paper selected the increase ratio from 5 to 16% compared with the minimum land area demand as the reasonable land use range.
2020年，中国承诺在2030年前实现碳排放达峰，并在2060年前实现碳中和。这些宏伟的碳目标将不可避免地推动可再生能源发电的发展，可再生能源发电从能源和水资源角度来看具有优势，但从土地利用角度来看存在劣势。因此，有必要探讨电力部门可再生能源开发、用水以及土地利用之间的相互作用，并为中国土地管理部门确定合理的电力相关土地利用范围。在本研究中，建立了一系列具有不同目标函数和约束条件的多时期、多区域电力系统优化模型，以研究2018年至2030年中国南方电网覆盖区域内可再生能源开发、用水和土地利用之间的相互关系，并为该地区2030年电力部门提供合理的土地利用范围。基于上述计算结果，在成本目标函数下，能源和水资源政策推动的可再生能源发展将增加电力部门的土地利用，考虑能源和水资源政策，该电力系统2030年的最小土地面积需求为24785.14平方千米。此外，根据2018年至2030年土地利用约束对电力部门总成本的影响，本文选取比最小土地面积需求增加5%至16%的范围作为合理的土地利用范围。
