Transition Pathways Towards Net-Zero Emissions Methanol Production

2021 ◽  
Author(s):  
Muflih A. Adnan ◽  
Mohd Adnan Khan ◽  
Pulickel M. Ajayan ◽  
Muhammad M. Rahman ◽  
Jinguang Hu ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Carbon Capture ◽  
Energy Systems ◽  
Methanol Production ◽  
Net Zero ◽  
Transition Pathways

The race to decarbonize our energy systems has led to significant advancement in technologies for harvesting renewable energy, carbon capture and conversion. Futures scenarios are being envisioned where CO2 is...

Sustainable transition pathways with high penetration of variable renewable energy in the coal-based energy systems

2021 ◽  
Vol 304 ◽  
pp. 117865
Author(s):  
Drilon Meha ◽  
Antun Pfeifer ◽  
Naser Sahiti ◽  
Daniel Rolph Schneider ◽  
Neven Duić
Keyword(s):  
Renewable Energy ◽  
Energy Systems ◽  
High Penetration ◽  
Transition Pathways ◽  
Sustainable Transition

scholarly journals Optimal Distribution of Renewable Energy Systems Considering Aging and Long-Term Weather Effect in Net-Zero Energy Building Design

2020 ◽  
Vol 12 (14) ◽  
pp. 5570 ◽  
Author(s):  
Yuehong Lu ◽  
Mohammed Alghassab ◽  
Manuel S. Alvarez-Alvarado ◽  
Hasan Gunduz ◽  
Zafar A. Khan ◽  
...  
Keyword(s):  
Markov Chain ◽  
Renewable Energy ◽  
Energy Systems ◽  
Aging Effect ◽  
Zero Energy ◽  
Generation System ◽  
Renewable Energy Systems ◽  
Net Zero Energy ◽  
Net Zero

Generation system interruptions in net-zero energy buildings (NZEBs) may result in missing the net-zero targets by a great margin. Consequently, it is significant to incorporate a realistic reliability model for renewable energy systems (RESs) that considers aging and long-term weather conditions. This study proposed a robust design optimization method that deals with the selection of RES to achieve NZEB. Different case studies were evaluated: 1. Deterministic approach; 2. Markov chain-based reliability without the aging effect; 3. Markov chain-based reliability with the aging effect. The results showed that the optimal sizes of RES, considering the aging effect, were much larger than the other two cases based on the annual energy balance. Moreover, the consideration of the aging effect on the reliability assessment of the generation system for NZEB opens a pathway for a more robust and economic design of RES.

scholarly journals Energy systems in scenarios at net-zero CO2 emissions

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Julianne DeAngelo ◽  
Inês Azevedo ◽  
John Bistline ◽  
Leon Clarke ◽  
Gunnar Luderer ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Primary Energy ◽  
Burden Sharing ◽  
Energy Policies ◽  
Gaseous Fuels ◽  
Net Zero ◽  
Solid Liquid

AbstractAchieving net-zero CO2 emissions has become the explicitgoal of many climate-energy policies around the world. Although many studies have assessed net-zero emissions pathways, the common features and tradeoffs of energy systems across global scenarios at the point of net-zero CO2 emissions have not yet been evaluated. Here, we examine the energy systems of 177 net-zero scenarios and discuss their long-term technological and regional characteristics in the context of current energy policies. We find that, on average, renewable energy sources account for 60% of primary energy at net-zero (compared to ∼14% today), with slightly less than half of that renewable energy derived from biomass. Meanwhile, electricity makes up approximately half of final energy consumed (compared to ∼20% today), highlighting the extent to which solid, liquid, and gaseous fuels remain prevalent in the scenarios even when emissions reach net-zero. Finally, residual emissions and offsetting negative emissions are not evenly distributed across world regions, which may have important implications for negotiations on burden-sharing, human development, and equity.

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