scholarly journals Carbon dioxide direct air capture for effective climate change mitigation based on renewable electricity: a new type of energy system sector coupling

2019 ◽  
Vol 25 (1) ◽  
pp. 43-65 ◽  
Author(s):  
Christian Breyer ◽  
Mahdi Fasihi ◽  
Arman Aghahosseini
2018 ◽  
Vol 2 (6) ◽  
pp. 1153-1169 ◽  
Author(s):  
H. A. Daggash ◽  
C. F. Patzschke ◽  
C. F. Heuberger ◽  
L. Zhu ◽  
K. Hellgardt ◽  
...  

In order to meet the 1.5−2C target, with CCU, it is necessary to close the carbon cycle, and avoid partial decarbonisation scenarios. In this context, direct air capture appears more effective than CCU.


Joule ◽  
2019 ◽  
Vol 3 (9) ◽  
pp. 2053-2057 ◽  
Author(s):  
Christian Breyer ◽  
Mahdi Fasihi ◽  
Cyril Bajamundi ◽  
Felix Creutzig

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2455
Author(s):  
Antonín Lupíšek ◽  
Tomáš Trubačík ◽  
Petr Holub

One of the major anthropogenic sources of greenhouse gases is the operation of building stock. Improving its energy efficiency has the potential to significantly contribute to achieving climate change mitigation targets. The purpose of this study was to roughly estimate such potential for the operation of the national building stock of Czechia to steer the national debate on the development of related national plans. The estimation is based on a simplified energy model of the Czech building stock that consists of sub-models of residential and nonresidential building stocks, for which their future energy consumptions, shares of energy carriers and sources, and emission factors were modeled in four scenarios. Uncertainties from the approximation of the emission factors were investigated in a sensitivity analysis. The results showed that the operation of the Czech building stock in 2016 totaled 36.9 Mt CO2, which represented 34.6% of the total national carbon dioxide emissions. The four building stock scenarios could produce reductions in the carbon dioxide emissions of between 28% and 93% by 2050, when also considering on-side production from photovoltaics. The implementation of the most ambitious scenario would represent a drop in national CO2 yearly emissions by 43.2% by 2050 (compared to 2016).


2021 ◽  
Author(s):  
Radu Custelcean

This article presents a perspective view of the topic of direct air capture (DAC) of carbon dioxide and its role in mitigating climate change, focusing on a promising approach to...


Climate ◽  
2021 ◽  
Vol 9 (9) ◽  
pp. 136
Author(s):  
Rebecca J. Barthelmie ◽  
Sara C. Pryor

Global wind resources greatly exceed current electricity demand and the levelized cost of energy from wind turbines has shown precipitous declines. Accordingly, the installed capacity of wind turbines grew at an annualized rate of about 14% during the last two decades and wind turbines now provide ~6–7% of the global electricity supply. This renewable electricity generation source is thus already playing a role in reducing greenhouse gas emissions from the energy sector. Here we document trends within the industry, examine projections of future installed capacity increases and compute the associated climate change mitigation potential at the global and regional levels. Key countries (the USA, UK and China) and regions (e.g., EU27) have developed ambitious plans to expand wind energy penetration as core aspects of their net-zero emissions strategies. The projected climate change mitigation from wind energy by 2100 ranges from 0.3–0.8 °C depending on the precise socio-economic pathway and wind energy expansion scenario followed. The rapid expansion of annual increments to wind energy installed capacity by approximately two times current rates can greatly delay the passing of the 2 °C warming threshold relative to pre-industrial levels. To achieve the required expansion of this cost-effective, low-carbon energy source, there is a need for electrification of the energy system and for expansion of manufacturing and installation capacity.


2021 ◽  
Vol 23 (3) ◽  
pp. 73-79
Author(s):  
Jasmina Mandić Lukić ◽  
◽  
Đorđina Milovanović ◽  
Maja Stipić ◽  
Sanja Petrović Bećirović ◽  
...  

Faced with forthcoming international obligations related to climate change mitigation measures, primarily planned to be reflected through the Law and Action Plan on Low Carbon Development Strategy, as well as the Law on Climate Change, all of which are currently being defined and adopted, Serbia is increasingly facing a need to switch its coal-fired facilities to alternative, environmentally more acceptable options. The related measures will have to be implemented much sooner than initially planned. Knowing that 80% of national GHG emissions originate from the energy sector, as well as that the dominant portion of those emissions results from the use of locally available coal, it is clear that the most efficient climate change mitigation measure would be a switch to alternative fuel options. However, having in mind that such an energy transition process is coupled with significant technological, environmental, economic, social, and other difficulties, the EU has initiated several projects, and one of them is TRACER, launched under the Horizon 2020 program, that strives to shed light on the best research and innovation strategies facilitating easier transition to the sustainable, low carbon energy system. The project addresses actions across nine coal-intensive European regions, including Kolubara Region in Serbia. The paper presents technological, environmental, and social challenges in the transition process, with an emphasis on the Kolubara region, and a proposal for the energy transition in Serbia respecting R&I strategies and Smart Specialization.


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