德国中压电网中电池储能系统和氢基储能系统作为电网扩展替代方案的技术经济分析

IF 1.8 Q4 ENERGY & FUELS
AIMS Energy Pub Date : 2023-01-01 DOI:10.3934/energy.2023019
Franz Teske, Jan Schubert, Adrian Fehrle, Felix Funk, J. Franke
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引用次数: 0

摘要

德国能源系统的分散化导致了对电网扩张的巨额投资,因为目前的法规规定了扩大电网以消除瓶颈的义务。与此同时,利用电网友好控制存储系统的机会被忽视,以减轻投资需求。因此,有必要研究智能的电网扩展替代方案,如存储系统,以有效地将分布式技术集成到电力系统中,减少电网扩展的需求。本文研究了德国2022年和2050年两种具有代表性的中压电网配置,并通过基于模型的仿真对不同的储能系统与电网扩容的经济性进行了比较。存储系统选择氢存储和电池存储。结果表明,如果只考虑电网扩展成本,电网扩展是成本最低的选择。然而,如果考虑到存储系统的其他用途,电池存储系统更经济。而在2050年的情景中,电网扩张导致的成本约为。每年56,000欧元,通过电池存储的收入机会,每年至少可以实现58,000欧元的收入,代表3.5%的利润率。热量提取、套利交易和避免叠加网格层中的网格扩张被整合为额外的收入流/来源。为了产生有意义的结果,假设了稳健的数据基础和成本下降。总的来说,在这种情况下,氢存储系统在经济上不如电池存储系统和电网扩展。结果表明,分析储能作为电网扩展的替代方案的权衡的复杂性,以及使用电池储能所带来的机会。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Techno-economic analysis of battery storage systems and hydrogen-based storage systems as an alternative to grid expansion in the medium voltage grid in Germany
The decentralization of the energy system in Germany is leading to enormous investments in grid expansion, as the current regulation creates an obligation to expand the power grid to eliminate bottlenecks. Meanwhile, opportunities to leverage grid-friendly control of storage systems are neglected to alleviate the need for investment. For this reason, it is necessary to investigate intelligent alternatives to grid expansion, such as storage systems, to efficiently integrate distributed technologies into the power system and reduce the need for grid expansion. In this work, two representative configurations of a medium voltage grid in Germany are developed for the years 2022 and 2050, and different storage systems are compared economically with the grid expansion in a model-based simulation. Hydrogen storage and battery storage were chosen as storage systems. The results show that grid expansion is the least expensive option if only the grid expansion costs are included in the analysis. However, if additional uses for the storage systems are considered, the battery storage systems are more economical. While in the scenario for 2050 the grid expansion causes costs of approx. 56,000 EUR per year, revenues of at least 58,000 EUR per year can be achieved via the revenue opportunities of the battery storage, representing a 3.5% margin. Heat extraction, arbitrage trading, and avoidance of grid expansion in superimposed grid levels were integrated as additional revenue streams/sources. A robust data basis and cost degressions were assumed for the simulations to generate meaningful results. Overall, hydrogen storage systems are economically inferior to battery storage systems and grid expansion for this use case. The results demonstrate the complexity of analyzing the trade-offs in terms of storage as an alternative to grid expansion as well as the opportunities presented using battery storage instead.
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来源期刊
AIMS Energy
AIMS Energy ENERGY & FUELS-
CiteScore
3.80
自引率
11.10%
发文量
34
审稿时长
12 weeks
期刊介绍: AIMS Energy is an international Open Access journal devoted to publishing peer-reviewed, high quality, original papers in the field of Energy technology and science. We publish the following article types: original research articles, reviews, editorials, letters, and conference reports. AIMS Energy welcomes, but not limited to, the papers from the following topics: · Alternative energy · Bioenergy · Biofuel · Energy conversion · Energy conservation · Energy transformation · Future energy development · Green energy · Power harvesting · Renewable energy
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