通过碳捕获利用和储存,为中国电力部门制定净零排放战略
Jing-Li Fan1,2, Zezheng Li1,2, Xi Huang1,2
1Centre for Sustainable Development and Energy Policy Research, School of Energy and Mining Engineering, China University of Mining & Technology, Beijing, 100083, China.
实现接近零的电力系统可以通过将高达20%的减排化石燃料电力与碳捕获相结合来优化. 这种方法提高了可靠性,降低了成本,即使在极端天气事件.
科学领域:
- 能源系统工程 能源系统工程
- 气候变化缓解缓解 气候变化缓解
- 电网优化 电网优化
背景情况:
- 脱碳的电力系统对于减缓气候变化至关重要.
- 开发可靠和有弹性的近零排放电力系统仍然是一个挑战.
- 碳捕获,利用和储存 (CCUS) 为化石燃料发电提供了脱碳的途径.
研究的目的:
- 探索一个可靠和有弹性的近零电力系统的最佳解决方案.
- 用CCUS评估减排化石燃料发电对系统可靠性和成本的影响.
- 分析存储时间和传输能力对系统性能的影响.
主要方法:
- 开发一个每小时发电系统模拟模型.
- 为CCUS集成高分辨率的地质约束.
- 在中国31个省份模拟了10450个场景.
- 分析不同电力储存时间的变化,省际输电能力,以及减价化石燃料发电的份额.
主要成果:
- 允许高达20%的减排化石燃料电力,可以在2050年之前将国家电力短缺率降低到9.0%.
- 一个成本最低的场景,其中16%的化石燃料电力减产,将网络投资成本降低2.5% (168亿美元).
- 减少化石燃料的功率通过减轻极端气候事件期间的电力短缺来提高系统弹性.
结论:
- 将减排的化石燃料电力与CCUS相结合是实现可靠和弹性近零电力系统的可行策略.
- 这种方法可以显著减少电力短缺和经济效益.
- 该研究强调了将CCUS与其他可再生能源整合战略一起考虑的重要性.
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