Value assessment of hydrogen-based electrical energy storage in view of electricity spot market

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• 作者：Shi YOU ; Junjie HU ; Yi ZONG ; Jin LIN
• 关键词：Electrical energy storage (EES) ; Electricity spot market ; Fuel cell combined heat and power plant (FCCHP) ; Hydrogen ; Hydrogen storage ; Mixed ; integer programming (MIP)
• 刊名：Journal of Modern Power Systems and Clean Energy
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：4
• 期：4
• 页码：626-635
• 全文大小：1,390 KB
• 刊物主题：Energy Systems; Renewable and Green Energy; Power Electronics, Electrical Machines and Networks;
• 出版者：Springer Berlin Heidelberg
• ISSN：2196-5420
• 卷排序：4

文摘

Hydrogen as an energy carrier represents one of the most promising carbon-free energy solutions. The ongoing development of power-to-gas (PtG) technologies that supports large-scale utilization of hydrogen is therefore expected to support hydrogen economy with a final breakthrough. In this paper, the economic performance of a MW-sized hydrogen system, i.e. a composition of water electrolysis, hydrogen storage, and fuel cell combined heat and power plant (FCCHP), is assessed as an example of hydrogen-based bidirectional electrical energy storage (EES). The analysis is conducted in view of the Danish electricity spot market that has high price volatility due to its high share of wind power. An economic dispatch model is developed as a mixed-integer programming (MIP) problem to support the estimation of variable cost of such a system taking into account a good granularity of the technical details. Based on a projected technology improvement by 2020, sensitivity analysis is conducted to illustrate how much the hydrogen-based EES is sensitive to variations of the hydrogen price and the capacity of hydrogen storage.