Challenges and countermeasures of traditional thermal power under the goals of carbon neutrality and carbon peaking

doi:10.3969/j.issn.1674-1951.2021.12.006

Abstract

Abstract:

To achieve the goals of carbon neutrality and carbon peak,there are stern challenges confronted by power industry in its low-carbon transformation. Combing the goals and countermeasures taken by foreign countries and regions,the difficulties faced by traditional thermal power enterprises in renewable energy consumption and old unit decommissioning are analyzed. Combination traditional thermal power plants with energy storage technology can enhance their operation flexibility and stabilize the whole power system. Integrating traditional thermal power with chemical industry, CCUS and other new technologies can build a new thermal power industry chain. The transformation and development of traditional thermal power is related to national energy security and people's livelihood. Thus,in the rapid development of renewable energy, the obstacles of new energy consumption and energy storage should be overcome, and the role of thermal power as safeguard and base load is unignorable.

Key words: greenhouse gas emission, the target of carbon neutrality and carbon peaking, thermal power, energy storage technology, CCUS, new power system, multi-energy coupling, renewable energy

CLC Number:

TK01⁺9

MA Shuangchen, YANG Pengwei, WANG Fangfang, FAN Shuaijun, ZHAO Guangjin, LI Qi, YUAN Wenxi, LU Rui, QIU Mingjie. Challenges and countermeasures of traditional thermal power under the goals of carbon neutrality and carbon peaking[J]. Integrated Intelligent Energy, 2021, 43(12): 36-45.

Figures/Tables 10

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碳中和时间	正在立法	立法规定	承诺
2035年			芬兰
2040年			奥地利、冰岛
2045年		瑞典
2050年	欧盟、加拿大、韩国、西班牙、智利、斐济	英国、法国、丹麦、新西兰、匈牙利	日本、德国、瑞士、挪威、爱尔兰、南非、葡萄牙、哥斯达黎加、斯洛文尼亚、马绍尔群岛、美国

储能技术类型	成熟度	投资成本/（元·kW^-1）	转化效率/%
抽水储能	商业化	5 000~6 000	71~80
压缩空气	示范项目	3 000~5 500	42~75

方案	优点	缺点
热电联产机组配热水储热灵活调峰^[53]	技术相对成熟、改造范围较小、耦合情况好	空间使用较大、储热时运行负荷大、夜间和极端天气需辅助加热
纯凝机组配高温熔盐储热系统灵活性调峰^[34]	性能良好、系统运行压力小、温度范围较宽、储热量大、价格低、储热密度大	熔盐管路容易发生凝固或冻堵;熔盐对管道和储罐腐蚀性强;极端天气下需要采取防冻措施