降低成本的绝热压缩空气储能用于长时储能应用
Cost Reducing Adiabatic Compressed Air Energy Storage for Long Duration Energy Storage Applications
AI总结：
本研究通过分析全球绝热压缩空气储能成本数据库，发现其容量从10MW扩至100MW时成本持续降低，并证明在10-100小时储能时长下结合优化地质选址可实现经济可行性，为大规模电网平衡和深度脱碳提供宝贵资产。
摘要：
长时储能（LDES）对于能源系统脱碳至关重要，但面临经济挑战，包括高昂的前期成本、较低的交易频率以及当前电力市场中有限的收入。压缩空气储能（CAES）是一种很有前景的LDES解决方案，尽管其经济可行性，尤其是对于超过锂离子电池能力的长储能时长，仍不明确。为了解决这一问题，我们在此编制并分析了一个全球新兴的绝热CAES成本数据库，结果显示随着容量从10MW扩展到100MW，成本持续降低，经验率为15%。我们的生命周期贴现现金流分析表明，绝热CAES在10-100小时的储能时长下可以实现经济可行性，特别是通过优化地质选址来降低储能成本。这一经济可行的LDES选项将实现大规模电网平衡，并支持多日期间的可再生能源并网，使其成为推进能源系统深度脱碳的宝贵资产。
英文摘要：
Long-duration energy storage (LDES) is vital for decarbonizing the energy system but faces economic challenges, including high upfront costs, low trading frequency, and limited revenue in current electricity markets. Compressed Air Energy Storage (CAES) is a promising LDES solution, though its economic viability, especially for long storage durations beyond lithium-ion battery capabilities, remains unclear. To address this, here we compiled and analyzed a global emerging adiabatic CAES cost database, showing a continuous cost reduction with an experience rate of 15% as capacities scaled from 10MW to 100MW. Our lifecycle discounted cash flow analysis suggests that adiabatic CAES could achieve economic viability for 10-100 hour storage durations, particularly with optimal geological siting to lower storage costs. This economically viable LDES option will enable large-scale grid balancing and support renewable integration over multi-day periods, making it a valuable asset for advancing deep decarbonization of energy systems.
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