A techno-economic assessment of implementing power-to-gas systems based on biomethanation in an operating waste water treatment plant
A techno-economic assessment of implementing power-to-gas systems based on biomethanation in an operating waste water treatment plant
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DOI：
10.1016/j.jece.2020.104735
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发表时间：
2021-02
影响因子：
7.7
通讯作者：
S. Michailos;M. Walker;Adam C. Moody;D. Poggio;M. Pourkashanian
中科院分区：
文献类型：
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作者：
S. Michailos;M. Walker;Adam C. Moody;D. Poggio;M. Pourkashanian
本研究的目的是评估的技术经济可行性集成生物甲烷化到电力燃气系统在真实的污水处理厂（WWTP）。该研究是第一次尝试评估几种基于生物甲烷化技术的方案的可行性，包括原位和异位生物甲烷化以及利用现场可再生电力和电网电力的瞬态模式。设计和评估了五种方案，计算出的LCOE在127.8和159.8 £/MWh之间。考虑到现有的政策机制和来自副产品的收入，LCOE减少到31.4-68.1英镑/兆瓦时。敏感度分析显示，电价及电解槽成本为所有情景下的主要成本来源。未来的技术经济进步沿着实施适当的政策激励措施，可以为两种产生利润的情景创造适当的框架。该研究的结论是，目前和未来的电力天然气应用应侧重于利用现场产生的电力。
The aim of the present study is to assess the techno-economic viability of integrating biomethanation into power to gas systems in a real waste water treatment plant (WWTP). The research is the first attempt to assess the viability of several scenarios based on the biomethanation technology that include both in- and ex-situ biomethanation as well as utilisation of on-site renewable electricity and grid electricity in a transient mode.Five scenarios were designed and evaluated and the calculated LCOE lies between 127.8 and 159.8 £/MWh. The consideration of existing policy mechanisms and revenues from by-products reduces the LCOEs to 31.4–68.1 £/MWh. The execution of a sensitivity analysis exposed that the electricity price and the electrolyser cost are the main cost contributors in all the scenarios. Future techno-economic advances along with imposing appropriate policy incentives can create the proper framework for two scenarios to generate profits. The study concludes that current and future power to gas application should focus on utilising on-site generated electricity.