Assessment of High-Electrification UK Scenarios with Varying Levels of Nuclear Power and Associated Post-Fault Behaviour

Hadri, Mohamed, Trovato, Vincenzo, Bialecki, Agnes, Merk, Bruno ORCID: 0000-0002-9811-4860 and Peakman, Aiden ORCID: 0000-0002-1109-4781 (2021) Assessment of High-Electrification UK Scenarios with Varying Levels of Nuclear Power and Associated Post-Fault Behaviour Energies, 14 (6). p. 1780. ISSN 1996-1073, 1996-1073

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Abstract

Renewable integration into the electricity system of Great Britain (GB) is causing considerable demand for additional flexibility from plants. In particular, a considerable share of this flexibility may be dispatched to secure post-fault transient frequency dynamics. Pursuant to the unprecedented changes to the traditional portfolio of generation sources, this work presents a detailed analysis of the potential system-level value of unlocking flexibility from nuclear electricity production. A rigorous enhanced mixed integer linear programming (MILP) unit commitment formulation is adopted to simulate several generation-demand scenarios where different layers of flexibility are associated to the operation of nuclear power plants. Moreover, the proposed optimisation model is able to assess the benefit of the large contribution to the system inertial response provided by nuclear power plants. This is made possible by considering a set of linearised inertia-dependent and multi-speed constraints on post fault frequency dynamics. Several case studies are introduced considering 2050 GB low-carbon scenarios. The value of operating the nuclear fleet under more flexible paradigms is assessed, including environmental considerations quantified in terms of system-level CO<inf>2</inf> emissions’ reduction.

Item Type:	Article
Uncontrolled Keywords:	nuclear flexibility, VRES, power system dynamics, inertia, electric vehicles, frequency response, batteries, energy storage
Divisions:	Faculty of Science & Engineering > School of Engineering
Depositing User:	Symplectic Admin
Date Deposited:	29 Apr 2021 08:01
Last Modified:	23 Jan 2026 09:19
DOI:	10.3390/en14061780
Open Access URL:	http://doi.org/10.3390/en14061780
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3120973
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