Techno-economic assessment of offshore wind-to-hydrogen scenarios: A UK case study
Techno-economic assessment of offshore wind-to-hydrogen scenarios: A UK case study
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DOI：
10.1016/j.ijhydene.2023.01.346
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发表时间：
2023-02
影响因子：
7.2
通讯作者：
A. Giampieri;J. Ling-Chin;A. Roskilly
中科院分区：
文献类型：
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作者：
A. Giampieri;J. Ling-Chin;A. Roskilly
英国2011年至2021年的装机容量、风电发电量和弃风情况表明，未来风能的渗透率和弃风量将继续上升，而弃风电量可用于生产绿色氢。在这项研究中，收集了数据，选择了技术，设计了系统，并开发了模拟模型，以确定通过不同途径生产和运输氢气的技术要求和平准化成本。对利用海上风电陆上和海上绿色氢气生产的主要组成部分的资本和运营成本（包括氢气储存和运输以及氢载体的替代策略）的分析表明，到2030年可以实现成本的大幅降低，与灰氢和蓝氢相比，能够以具有竞争力的成本利用海上风电生产绿色氢气。在本研究调查的所有方案中，海上生产压缩氢是2025年启动的项目中最具成本效益的方案，尽管该方案的经济可行性很大程度上受到存储期限和离岸风电场海岸距离的影响。对于 2050 年启动的项目来说，氢储存和运输的替代方案（例如液化氢和甲基环己烷）可能会变得更具成本效益，届时氢的平均成本可能达到每千克氢约 2 英镑或更低。
The installed capacity, electricity generation from wind, and the curtailment of wind power in the UK between 2011 and 2021 showed that penetration levels of wind energy and the amount of energy that is curtailed in future would continue to rise whereas the curtailed energy could be utilised to produce green hydrogen. In this study, data were collected, technologies were chosen, systems were designed, and simulation models were developed to determine technical requirements and levelised costs of hydrogen produced and transported through different pathways. The analysis of capital and operating costs of the main components used for onshore and offshore green hydrogen production using offshore wind, including alternative strategies for hydrogen storage and transport and hydrogen carriers, showed that a significant reduction in cost could be achieved by 2030, enabling the production of green hydrogen from offshore wind at a competitive cost compared to grey and blue hydrogen. Among all scenarios investigated in this study, compressed hydrogen produced offshore is the most cost-effective scenario for projects starting in 2025, although the economic feasibility of this scenario is strongly affected by the storage period and the distance to the shore of the offshore wind farm. Alternative scenarios for hydrogen storage and transport, such as liquefied hydrogen and methylcyclohexane, could become more cost-effective for projects starting in 2050, when the levelised cost of hydrogen could reach values of about £2 per kilogram of hydrogen or lower.