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Decarbonising the transport and electricity sectors using hydrogen

Utomo, Oscar 2023. Decarbonising the transport and electricity sectors using hydrogen. PhD Thesis, Cardiff University.
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Abstract

Energy systems are becoming increasingly integrated because energy providers need to address the diverse market. As fossil fuel based energy is slowly being phased out in both the electricity sector and the transportation sector, the new sources of energy need to be both renewable and non-polluting. Due to the drive for a clean and renewable energy supply, there has been a marked increase in intermittent renewable electricity generation. However, intermittent renewable electricity generation may cause supply uncertainties and pose other technical challenges. To address this problem, sufficient energy storage is needed to meet the demand. Furthermore, frequent fluctuations in intermittent renewable electricity generation may cause damage to the electricity grid. Hence, a form of clean dispatchable energy is needed to mitigate the negative effects of intermittency. Given that the UK government aims to ban the sales of new fossil-fuel powered vehicles from 2030, the techno-economic feasibility of new energy vectors to meet these conditions must be better understood. This thesis focuses on the use of hydrogen as an energy vector for decarbonising the transport and electricity sectors. The lack of real operational data and high capital costs are the main barriers to understanding the role that hydrogen can play in providing a part of the solution towards contemporary energy issues. Furthermore, methods for obtaining data for hydrogen-based systems can be complex causing technical exposure and awareness to a very select group of people. Hence, the work in this thesis attempts to address these issues by developing simple but accurate methods to generate representative electricity demand profiles and hydrogen refuelling data. This data can then be used to conduct studies such as cost analyses for transitioning from conventional fuelled vehicles to hydrogen-powered vehicles and/or optimisation studies for integrated energy systems with hydrogen generation, storage and dispatch to provide a more comprehensive view on how hydrogen can be used to decarbonise parts of the transportation and electricity sectors.

Item Type: Thesis (PhD)
Date Type: Completion
Status: Unpublished
Schools: Engineering
Uncontrolled Keywords: 1.Hydrogen 2.Optimisation 3.Electricity 4.Transport 5.Integration 6.Profiles 7.Storage
Date of First Compliant Deposit: 15 November 2023
Last Modified: 15 Nov 2023 13:41
URI: https://orca.cardiff.ac.uk/id/eprint/163726

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