绿色充电的级联边际排放信号与不断增长的电动汽车采用
Sonia Martin1, Siobhan Powell2, Ram Rajagopal3,4
1Department of Mechanical Engineering, Stanford University, Stanford, CA, USA. soniamartin@stanford.edu.
Nature communications
|November 19, 2025
概括
将电动汽车充电转向更清洁的能源可以减少排放. 一项新的级联策略改进了现有方法,在数百万辆电动汽车中将排放量减少了10-28%.
科学领域:
- 环境科学环境科学
- 能源系统 能源系统
- 运输技术 运输技术 运输技术
背景情况:
- 将电动汽车 (EV) 充电转移到更清洁的电力来源可以显著减少二氧化碳 (CO2) 排放.
- 目前用于指导需求响应收费的电网排放因子方法,在当今不断发展的电网和越来越多的电动汽车采用方面存在局限性.
研究的目的:
- 评估电动汽车收费现有的平均和边际排放因子方法在日益普及的情况下的有效性.
- 建议和评估一种替代的收费策略,以尽量减少电网排放.
主要方法:
- 将现实世界电动汽车充电数据与美国西部电网模型结合起来.
- 测试了现有的平均和边际排放因子策略与新的级联边际排放因子策略相比.
- 模拟的场景与越来越多的电动汽车采用水平.
主要成果:
- 现有的排放因子方法在某些条件下 (噪声信号,同步充电,发电机响应) 可以无意中增加电网排放.
- 拟议的级联边际排放因子策略在各种电网场景中将增加的电网排放量减少了10-28%.
- 该战略在至少200万电动汽车的基础上被证明是有效的.
结论:
- 电动汽车充电需求响应策略需要改进,以有效减少排放并支持电网脱碳.
- 级联边际排放因子战略为管理电动汽车充电排放提供了更强大的方法,因为采用越来越多.
- 未来的电网管理必须考虑到现实世界的电网运营和电动汽车充电行为的复杂性.
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