Values of latent heat and thermochemical energy storage technologies in low-carbon energy systems: whole system approach

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Title: Values of latent heat and thermochemical energy storage technologies in low-carbon energy systems: whole system approach
Authors: Zhang, X
Ameli, H
Dong, Z
Vecchi, A
Gallego-Schmid, A
Strbac, G
Sciacovelli, A
Item Type: Journal Article
Abstract: Thermal energy storage (TES) is widely expected to play an important role in facilitating the decarbonization of the future energy system. Although significant work has been done in assessing the values of traditional sensible TES, less is known about the role, impact and value of emerging advanced TES at the system level. This is particularly the case of latent heat thermal energy storage (LHTES) and thermochemical energy storage (TCS). In this context, this paper is dedicated to evaluating the techno-economic values for the whole UK energy system of LHTES and TCS technology using an integrated whole energy system model. First, the key concepts of the whole system modelling framework are introduced. Unique to this work is that the economic benefits delivered by LHTES and TCS to different levels of the UK energy system infrastructure and various energy sectors through the deployment of TES are explicitly analyzed, which comprehensively demonstrates the values of selected TES technologies from the whole system perspective. A series of sensitivity studies are implemented to analyze the advantages and disadvantages of LHTES and TCS under different conditions. The simulation results indicate that TES can benefit different sectors of the whole energy system and drive significant cost savings, but the whole system values of TES is closely dependent on the decarbonization requirement. Although LHTES is characterized by relatively low capital costs, when TES penetration is limited and carbon target is tight, the advantage of TCS is outstanding due to its high energy density.
Issue Date: 1-Jun-2022
Date of Acceptance: 27-Jan-2022
URI: http://hdl.handle.net/10044/1/94957
DOI: 10.1016/j.est.2022.104126
ISSN: 2352-152X
Publisher: Elsevier
Journal / Book Title: Journal of Energy Storage
Volume: 50
Copyright Statement: © 2022 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Engineering & Physical Science Research Council (E
Engineering & Physical Science Research Council (E
Funder's Grant Number: EGR1224-119
UOB107926
Publication Status: Published
Embargo Date: 2023-03-03
Article Number: ARTN 104126
Online Publication Date: 2022-03-04
Appears in Collections:Electrical and Electronic Engineering
Grantham Institute for Climate Change
Faculty of Natural Sciences
Faculty of Engineering



This item is licensed under a Creative Commons License Creative Commons