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Temporospatial techno-economic analysis of heat pumps for decarbonising heat of Great Britain

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Wang, Yang and He, Wei (2021) Temporospatial techno-economic analysis of heat pumps for decarbonising heat of Great Britain. Energy and Buildings, 250 . 111198. doi:10.1016/j.enbuild.2021.111198 ISSN 0378-7788.

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Official URL: http://dx.doi.org/10.1016/j.enbuild.2021.111198

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Abstract

Electrification of heat using heat pumps with renewable power presents an attractive and technically feasible pathway for decarbonising heat. However, until now, the uptake of heat pumps is much slower than fossil-fuel-based heating, particularly in the UK. To accelerate the use of heat pumps for national-scale heat decarbonisation, this study proposes new approaches to synthesis high-quality temporospatial energy datasets (e.g. hourly depth-dependent region-based ground source temperature), a new framework that enables a national-scale cost analysis using the synthesised datasets rather than individual location-based analysis, and forward-looking analysis and discussions on potential subsidy structures and technology’s R&D directions for facilitating the transition to low-carbon heat using heat pumps. The results suggest that currently, Renewable Heat Incentive (RHI) subsidised ground source heat pumps have the lowest levelised cost of heat (10-40% lower than gas boilers), benefiting from the high heating efficiency and the ‘feed-in-tariff’ style RHI subsidy. However, considering the change of future subsidies, required advances are analysed to improve the cashflow of owning heat pumps, improve the heating efficiency, integration with low-cost power sources, and reduction of heat demands through homes’ energy efficiency improvements. These insights will help engineers and policy-makers to decarbonise domestic heat using heat pumps.

Item Type: Journal Article
Subjects: H Social Sciences > HD Industries. Land use. Labor
T Technology > TD Environmental technology. Sanitary engineering
T Technology > TH Building construction
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH): Carbon monoxide -- Environmental aspects -- Great Britain, Energy policy -- Great Britain, Carbon dioxide mitigation -- Great Britain, Air source heat pump systems, Ground source heat pump systems
Journal or Publication Title: Energy and Buildings
Publisher: Elsevier
ISSN: 0378-7788
Official Date: 1 November 2021
Dates:
DateEvent
1 November 2021Published
19 June 2021Available
11 June 2021Accepted
Volume: 250
Article Number: 111198
DOI: 10.1016/j.enbuild.2021.111198
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 28 June 2021
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
GCRF Catalyst Fund University of Warwickhttp://dx.doi.org/10.13039/501100000741
Development Research FellowshipRoyal Academy of Engineeringhttp://dx.doi.org/10.13039/501100000287

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