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Assessing the feasibility of carbon dioxide mitigation options in terms of energy usage
File(s)
Author(s)
Babacan, Oytun
De Causmaecker, Sven
Gambhir, Ajay
Fajardy, Mathilde
Rutherford, A William
Type
Journal Article
Abstract
Measures to mitigate the emissions of carbon dioxide (CO2) can vary substantially in terms of the energy required. Some proposed CO2 mitigation options involve energy-intensive processes that compromise their viability as routes to mitigation, especially if deployed at a global scale. Here we provide an assessment of different mitigation options in terms of their energy usage. We assess the relative effectiveness of several CO2 mitigation routes by calculating the energy cost of carbon abatement (kilowatt-hour spent per kilogram CO2-equivalent, or kWh kgCO2e–1) mitigated. We consider energy efficiency measures, decarbonizing electricity, heat, chemicals and fuels, and also capturing CO2 from air. Among the routes considered, switching to renewable energy technologies (0.05–0.53 kWh kgCO2e–1 mitigated) offer more energy-effective mitigation than carbon embedding or carbon removal approaches, which are more energy intensive (0.99–10.03 kWh kgCO2e–1 and 0.78–2.93 kWh kgCO2e–1 mitigated, respectively), whereas energy efficiency measures, such as improving building lighting, can offer the most energy-effective mitigation.
Date Issued
2020-09-01
Date Acceptance
2020-06-01
Citation
Nature Energy, 2020, 5, pp.720-728
URI
DOI
ISSN
2058-7546
Publisher
Nature Research
Start Page
720
End Page
728
Journal / Book Title
Nature Energy
Volume
5
Copyright Statement
© The Author(s), under exclusive licence to Springer Nature Limited 2020.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000545928400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Energy & Fuels
Materials Science, Multidisciplinary
Materials Science
LIFE-CYCLE ASSESSMENT
CO2 UTILIZATION
CAPTURE
PERFORMANCE
EFFICIENCY
EMISSIONS
SYSTEMS
STORAGE
FUTURE
FUELS
Publication Status
Published
Date Publish Online
2020-07-06