期刊
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
卷 81, 期 -, 页码 181-198出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijggc.2018.12.019
关键词
Negative emissions technologies; BECCS; Direct air capture
类别
资金
- Science and Solutions for a Changing Planet Doctoral Training Programme (SSCP DTP) by the Natural Environment Research Council (NERC)
- IEA Greenhouse Gas R&D Programme (IEAGHG)
- Engineering and Physical Sciences Research Council (EPSRC) [EP/M001369/1]
- Comparative assessment and region-specific optimisation of GGR project from NERC [NE/P019900/1]
- EPSRC [EP/P026214/1, EP/M001369/1] Funding Source: UKRI
- NERC [NE/P019900/1] Funding Source: UKRI
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.
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