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The role and value of negative emissions technologies in decarbonising the UK energy system

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Title: The role and value of negative emissions technologies in decarbonising the UK energy system
Authors: Daggash, H
Heuberger, C
Mac Dowell, N
Item Type: Journal Article
Abstract: The UK is committed to the Paris Agreement and has a legally-binding target to reduce economy-wide greenhouse gas emissions by 80% relative to 1990 levels by 2050. Meeting these targets would require deep decarbonisation, including the deployment of negative emissions technologies. This study, via a power supply capacity expansion model, investigates the potential role of bio-energy with carbon capture and storage (BECCS) and direct air capture and storage (DACS) in meeting the UK's emissions reduction targets. We show that to achieve power sector decarbonisation, a system dominated by firm and dispatchable low-carbon generators with BECCS or DACS to compensate for their associated emissions is significantly cheaper than a system dominated by intermittent renewables and energy storage. By offsetting CO2 emissions from cheaper thermal plants, thereby allowing for their continued utilisation in a carbon-constrained electricity system, BECCS and DACS can reduce the cost of decarbonisation by 37–48%. Allowing some this value transferred to accrue to NETs offers a potential route for their commercial deployment.
Issue Date: 1-Feb-2019
Date of Acceptance: 26-Dec-2018
URI: http://hdl.handle.net/10044/1/66911
DOI: https://dx.doi.org/10.1016/j.ijggc.2018.12.019
ISSN: 1750-5836
Publisher: Elsevier
Start Page: 181
End Page: 198
Journal / Book Title: International Journal of Greenhouse Gas Control
Volume: 81
Copyright Statement: © 2019 Published by Elsevier Ltd. . 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 (EPSRC)
IEAGHG t/a IEA Environmental Projects Ltd
Natural Environment Research Council (NERC)
Natural Environment Research Council [2006-2012]
Funder's Grant Number: EP/M001369/1
IEA/CON/14/228
NE/P019900/1
Keywords: Science & Technology
Technology
Green & Sustainable Science & Technology
Energy & Fuels
Engineering, Environmental
Science & Technology - Other Topics
Engineering
Negative emissions technologies
BECCS
Direct air capture
LEAD-ACID-BATTERIES
POWER-PLANTS
CARBON-DIOXIDE
LEARNING RATES
CO2 CAPTURE
CCS
WIND
POSTCOMBUSTION
FLEXIBILITY
REANALYSIS
04 Earth Sciences
05 Environmental Sciences
09 Engineering
Energy
Publication Status: Published
Embargo Date: 2020-01-06
Online Publication Date: 2019-01-06
Appears in Collections:Centre for Environmental Policy
Faculty of Natural Sciences



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