Designing optimal integrated electricity supply configurations for renewable hydrogen generation in Australia

iScience

Zhaojun Han¹  Rose Amal²  Muhammad Haider Ali Khan³  Martin Hablutzel³  Rahman Daiyan³  Iain MacGill³  Nawshad Haque⁴ 

[1] Corresponding author;CSIRO Energy, Private Bag 10, Clayton, VIC 3169, Australia;Particles and Catalysis Research Laboratory, School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia;Siemens Limited, Melbourne, VIC 3153, Australia;

关键词: Electrochemistry;    energy policy;    energy engineering;    energy sustainability;    energy flexibility;    energy systems;   

DOI  :  

来源: DOAJ

【 摘 要 】

Summary: The high variability and intermittency of wind and solar farms raise questions of how to operate electrolyzers reliably, economically, and sustainably using predominantly or exclusively variable renewables. To address these questions, we develop a comprehensive cost framework that extends to include factors such as performance degradation, efficiency, financing rates, and indirect costs to assess the economics of 10 MW scale alkaline and proton-exchange membrane electrolyzers to generate hydrogen. Our scenario analysis explores a range of operational configurations, considering (i) current and projected wholesale electricity market data from the Australian National Electricity Market, (ii) existing solar/wind farm generation curves, and (iii) electrolyzer capital costs/performance to determine costs of H2 production in the near (2020–2040) and long term (2030–2050). Furthermore, we analyze dedicated off-grid integrated electrolyzer plants as an alternate operating scenario, suggesting oversizing renewable nameplate capacity with respect to the electrolyzer to enhance operational capacity factors and achieving more economical electrolyzer operation.

【 授权许可】

Unknown