强大的资本成本优化生产和多时量级存储要求,以实现100%可再生的澳大利亚电网
Raheel A Shaikh1, David J Vowles1, Alex Dinovitser1
1School of Electrical and Mechanical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
PNAS nexus
|April 5, 2024
概括
澳大利亚互联网和多种能源存储解决方案可以显著降低可再生能源成本. 这种方法减少了发电和储存需求,为完全可再生电力部门铺平了道路.
科学领域:
- 能源系统工程 能源系统工程
- 整合可再生能源的整合
- 电网基础设施 电网基础设施
背景情况:
- 过渡到可再生能源需要大量的投资和技术创新.
- 管理风能和太阳能的间歇性需要先进的储能和输电基础设施.
- 对于未来的电网,储能技术和互连线的作用的最佳组合尚未得到充分理解.
研究的目的:
- 确定可再生能源系统的最佳发电和储能能力要求.
- 评估多时尺度存储解决方案与互连连接器的成本效益.
- 分析存储技术变化和成本波动对电网投资的影响.
主要方法:
- 提出了一个具有三个存储类别的多时尺度存储解决方案.
- 模拟了澳大利亚东部和西部电网之间的连接器.
- 对存储技术和成本变化进行了广泛的敏感性分析.
主要成果:
- 拟议的互连线将分别减少6%和14%的发电和储能容量需求.
- 通过互连线,总体投资成本减少了4%.
- 在成本最低的情景中,风力发电满足了50-70%的能源需求.
- 长期储存 (15-40%的峰值需求) 是必要的,为2 - 4天的电力容量.
结论:
- 在澳大利亚,一个完全可再生的电力部门需要13倍增加储能容量和40倍增加储能容量.
- 拟议的互连线是管理可再生能源间歇性的成本有效解决方案.
- 未来的电网投资必须考虑储能技术和电网基础设施的混合,以实现脱碳目标.
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