scholarly journals Carbon Emission Analysis Considering Demand Response Effect in TOU Program

2011 ◽  
Vol 60 (6) ◽  
pp. 1091-1096
Author(s):  
Young-Hyun Kim ◽  
Hyung-Geun Kwag ◽  
Jin-O Kim
Author(s):  
Xuebei Zhang ◽  
Zeyuan Xu ◽  
Chris Gerada ◽  
David Gerada

Science ◽  
2019 ◽  
Vol 364 (6438) ◽  
pp. eaav3506 ◽  
Author(s):  
Phil De Luna ◽  
Christopher Hahn ◽  
Drew Higgins ◽  
Shaffiq A. Jaffer ◽  
Thomas F. Jaramillo ◽  
...  

Electrocatalytic transformation of carbon dioxide (CO2) and water into chemical feedstocks offers the potential to reduce carbon emissions by shifting the chemical industry away from fossil fuel dependence. We provide a technoeconomic and carbon emission analysis of possible products, offering targets that would need to be met for economically compelling industrial implementation to be achieved. We also provide a comparison of the projected costs and CO2 emissions across electrocatalytic, biocatalytic, and fossil fuel–derived production of chemical feedstocks. We find that for electrosynthesis to become competitive with fossil fuel–derived feedstocks, electrical-to-chemical conversion efficiencies need to reach at least 60%, and renewable electricity prices need to fall below 4 cents per kilowatt-hour. We discuss the possibility of combining electro- and biocatalytic processes, using sequential upgrading of CO2 as a representative case. We describe the technical challenges and economic barriers to marketable electrosynthesized chemicals.Science, this issue p. eaav3506


Author(s):  
Dinh Hoa Nguyen

Since the global warming has recently become more severe causing many serious changes on the weather, economy, and society worldwide, lots of efforts have been put forward to prevent it. As one of the most important energy sectors, improvements in electric power grids are required to address the challenge of suppressing the carbon emission during electric generation especially when utilizing fossil-based fuels, while increasing the use of renewable and clean sources. This paper hence presents a novel optimization model for tackling the problems of optimal power scheduling and real-time pricing in the presence of a carbon constraint while taking into account a demand response possibility, which may provide a helpful method to limit the carbon emission from conventional generation while promoting renewable generation. The critical aspects include explicitly integrating the cost of emission with the total generation cost of conventional generation and combining it with the consumer satisfaction function. As such, conventional generation units must carefully schedule their power generation for their profits, while consumers, with the help from renewable energy sources, are willing to adjust their consumption to change the peak demand. Overall, a set of compromised solution called the Pareto front is derived upon which the conventional generating units choose their optimal generation profile to satisfy a given carbon constraint.


IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 183606-183618
Author(s):  
Wei Chieh Khoo ◽  
Jiashen Teh ◽  
Ching-Ming Lai

2015 ◽  
Vol 799-800 ◽  
pp. 1440-1444
Author(s):  
Yuan Yu ◽  
Ke Zhi Yu ◽  
Hai Zhang

The innovation of solar water heating system of students living community in Shanghai Ocean University is illustrated in this paper. A new water heating system including solar, air source heat pumps and gas boiler is established owing to the high energy consumption of original system. The comprehensive energy consumption, carbon emission and operating cost comparison between the original and new system is analysed based on the measured water, power and natural gas consumption. The results show that the comprehensive energy consumption is reduced by about 27.5%, the carbon commission decreased by 6%, and the operating costs reduced by approximately 23.6%, which means the new hot water system is successful.


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