Article
Thermodynamics
Ran Li, Zhen Yang, Yuanyuan Duan
Summary: In this study, calculation methods for modeling, prediction, and optimization of the integrated gasification combined cycle (IGCC) with carbon capture and storage (CCS) system were established. The carbon capture rate (CCR) and levelized cost of energy (LCOE) were selected as the optimization objectives, and the effects of carbon trading were evaluated. The results revealed that the H2O/CO variable played a decisive role in the optimization target, and an increase in CCR led to a higher initial investment cost. Moreover, an increase in carbon trading prices significantly increased the system's maximum CCR.
APPLIED THERMAL ENGINEERING
(2023)
Article
Energy & Fuels
David Berstad, Geir Skaugen, Simon Roussanaly, Rahul Anantharaman, Petter Neksa, Kristin Jordal, Stian Traedal, Truls Gundersen
Summary: The capture conditions for CO2 vary greatly among industrial point sources. Different capture technologies are required depending on the CO2 fraction and pressure level to achieve cost- and energy-efficient decarbonization. This study proposes a process design for low-temperature CO2 capture from an Integrated Gasification Combined Cycle (IGCC) power plant. Steady-state simulations were conducted and the performance of the overall process and major components were investigated. The results show that compressor and expander efficiencies, as well as synthesis gas separation temperature, have the highest impact on power requirements. Modifying the process to produce cold liquid CO2 for ship transport increases net power requirements by 16% and is suitable for capturing CO2 for shipping.
Article
Environmental Sciences
Siyao Wang, Fu Chen, Yinghong Wang
Summary: The European energy crisis, caused by the conflict between Russia and Ukraine, has brought attention to the decarbonization of fossil energy sources. This study used integrated life cycle analysis and fixed-effect panel threshold model to analyze the CO2 emissions in different sectors and introduced underground coal gasification (UCG) and UCG-integrated gasification combined cycle (UCG-IGCC) technologies as innovative approaches. The study found that UCG-IGCC technology can be a complementary measure to mitigate CO2 emissions within a certain range of energy intensity, and the social cost of innovating coal production and utilization processes using UCG-IGCC technology is lower than phasing out coal-fired power plants using carbon prices.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Abdul Rahim Shaikh, Qinhui Wang, Yi Feng, Zohaib Sharif, Long Han, Kaikun Li, Zhongyang Luo
Summary: Carbon capture and sequestration (CCS) technology is essential for sustainable power generation from fossil fuels. Calcium looping gasification (CLG) is a novel energy technology that eliminates the need for CO2 capture, making it more energy efficient and cost-effective. The simulation and experimental results show that CLG combined cycle system has higher efficiency compared to traditional power plants, demonstrating its potential for future adaptation in advanced power generation.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Chemistry, Multidisciplinary
T. -C Wang, Ling-Wei Wei, H. -L Huang, Kuen-Song Lin, H. Paul Wang
Summary: Cleaning combustible gas at high temperatures can improve energy efficiency and reduce costs for power generation. A study on high-temperature desulfurization and particulate filtration of syngas using ZnO/R-CuO sorbents and ceramic filters has been carried out. The results show that the process is feasible and can achieve high efficiencies.
Article
Geochemistry & Geophysics
Stefano Graziani, Stan E. Beaubien, Giancarlo Ciotoli, Sabina Bigi
Summary: Locating and quantifying deep-origin CO2 leakage is challenging due to measurement accuracy and uncertainty. The Ground CO2 Mapper, a low-cost tool developed in this study, can rapidly measure CO2 concentration distribution, improving the estimation accuracy of CO2 flux.
APPLIED GEOCHEMISTRY
(2022)
Review
Environmental Sciences
Casper Boongaling Agaton
Summary: Real options approaches are increasingly used to evaluate uncertain CCS investments due to their flexibility, and further research is needed to analyze the key trends and hotspots in RO designs in CCS investments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Energy & Fuels
Sujeet Yadav, S. S. Mondal
Summary: Oxy-fuel combustion-based CCS technology has emerged as a promising technique for preventing greenhouse gas emissions. It has gained attention due to its cost-effective CO2 capture.
Article
Energy & Fuels
Seckin Karagoz
Summary: In order to produce clean and cheap power, it is necessary to develop new technologies or improve existing processes based on sustainability criteria and alternative fuels. The integration of sustainability into process design helps eliminate or minimize negative effects. However, measuring sustainability performance and decision-making are crucial and challenging steps in developing sustainable industrial processes. This study introduces the framework of Methodological Sustainability Assessment to Process Intensification (MSAtoPI) as a methodological approach with appropriate sustainability indicators, which effectively analyzes and communicates complex process operations, and demonstrates its effectiveness in a biomass-based process for clean power production.
Article
Green & Sustainable Science & Technology
Yoga Wienda Pratama, Niall Mac Dowell
Summary: Carbon capture and storage (CCS) is recognized as a key technology in decarbonizing energy systems, but deployment attempts have largely failed and the technology is still considered pre-commercial. Public investment has focused on research, development, and demonstration (RD&D) in capture technology, but there is little evidence that this can achieve commercial viability. Efforts should instead prioritize overcoming commercialization barriers and leave intellectual property development to the private sector.
Article
Thermodynamics
Qunli Wu, Chunxiang Li
Summary: This study proposes a hydrogen-based integrated energy system (HIES) operation framework and develops a distributional robust optimization method to address wind power uncertainty. Numerical analysis shows that the proposed model has advantages in low carbon emissions, economic performance, environmental impact, and energy efficiency. It provides valuable reference for HIES investment and carbon pricing decisions.
Article
Engineering, Environmental
Yuting Zhang, Christopher Jackson, Samuel Krevor
Summary: This study estimates the amount of CO2 stored by facilities since 1996 based on publicly available sources and categorizes them into three assurance levels. The storage estimates indicate significant climate relevance comparable to renewable energy emissions impacts. The widely used capture capacity is not a reliable proxy for storage volumes, emphasizing the need for uniform reporting with quality assurance.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2022)
Article
Green & Sustainable Science & Technology
Bastien Dupuy, Anouar Romdhane, Peder Eliasson, Hong Yan
Summary: This study presents a two-step strategy combining geophysical and rock physics inversions for quantitative CO2 monitoring, using a Bayesian formulation to account for uncertainties. Demonstrated using data from the Sleipner CO2 storage project, the workflow involves deriving rock frame properties from baseline data and obtaining a 2D spatial distribution of CO2 saturation with uncertainty assessment. The study also highlights the need for advanced rock physics models and the recommendation of a joint rock physics inversion approach for better conformance verification.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Engineering, Environmental
Swati Gola, Kyriaki Noussia
Summary: Carbon Capture and Storage (CCS) technologies are seen as a solution to climate change, but their international deployment faces challenges such as liability frameworks for transboundary transport and storage, as well as the role of insurance.
RESOURCES CONSERVATION AND RECYCLING
(2022)
Article
Environmental Sciences
Danbo Chen, Mengfei Jiang
Summary: Carbon Capture, Utility and Storage (CCUS) is crucial for achieving carbon neutrality in China and has immense development potential. This study highlights the significant socio-economic impacts of CCUS investment, including job creation and increased economic value.
Article
Economics
Marie-Louise Arlt, David Chassin, Claudio Rivetta, James Sweeney
Summary: This paper examines the impact of real-time pricing and load automation on residential distribution systems. The study finds that implementing real-time pricing can result in an aggregate welfare gain of 39 USD per customer and year. However, it also notes that RTP and load automation may significantly increase peak system load. Introducing a market-based demand management system can further enhance welfare gains and reduce grid investment.
Article
Economics
Javier Jorquera-Copier, Alvaro Lorca, Enzo Sauma, Stefan Lorenczik, Matias Negrete-Pincetic
Summary: As countries update their climate ambitions, low-carbon hydrogen production and use present opportunities for emissions reductions and economic development. A case study for Chile shows that integrating hydrogen and electricity networks can lower system costs and enhance renewable integration, but policy support is needed to address concerns related to water and land use.
Article
Economics
Dawit Guta, Hisham Zerriffi, Jill Baumgartner, Abhishek Jain, Sunil Mani, Darby Jack, Ellison Carter, Guofeng Shen, Jennifer Orgill-Meyer, Joshua Rosenthal, Katherine Dickinson, Rob Bailis, Yuta Masuda
Summary: Household solid fuel use is detrimental to health and the environment. The Indian government's PMUY subsidy has successfully promoted the adoption of LPG by millions of households. However, there is limited understanding of the decision-making process to reduce solid fuel use after transitioning to cleaner fuels. This study found that factors such as household wealth, social status, education level, and the prevalence of LPG use in the village are positively associated with LPG consumption and the discontinuation of solid fuel use. On the other hand, factors such as distance to LPG refill delivery, household size, and the PMUY subsidy are negatively associated with the share of LPG use.
Article
Economics
Nicolas Morell-Dameto, Jose Pablo Chaves-Avila, Tomas Gomez San Roman, Pablo Duenas-Martinez, Tim Schittekatte
Summary: This paper assesses the performance of differently implemented forward-looking network tariff designs and proposes an innovative coordination mechanism to increase predictability in a future with many flexible customers. The study reveals that if large shares of customers synchronize their responses to highly time-varying and locational-specific network charges, it can lead to unexpected reinforcements.
Article
Economics
Alexandra Gritz, Guntram Wolff
Summary: Russia's weaponization of gas supplies shook the energy security of Central and Eastern Europe in 2022. The region responded by increasing alternative energy supplies and developing new gas supply routes. Renewable energy, nuclear energy, and hydrogen play important roles in the long-term. Mitigating the impact of this shock requires the EU to prioritize the integrity of its energy market.
Article
Economics
Jaroslaw Kantorowicz, Marion Collewet, Matthew DiGiuseppe, Hendrik Vrijburg
Summary: Economic costs are a major political obstacle to investing in climate change mitigation and adaptation measures. The method of financing plays a crucial role in determining public opposition to government green investments, with debt financing being less opposed than broad-based taxes. This study suggests that credit market tools, such as green bonds and debt for climate swaps, can be politically efficient in increasing support for green financing. Carbon taxes and wealth taxes are found to be the most preferred options.
Article
Economics
Kun Guo, Liyuan Luan, Xiaoli Cai, Dayong Zhang, Qiang Ji
Summary: This paper investigates China's energy trade stability using a survival analysis approach. It finds that the energy trade linkages between China and 153 other countries are complex and unstable, with short periods of trade with many countries. Geopolitically risky regions, such as the Middle East and Africa, have the lowest trade stability. Climate risks have significant effects on energy trade stability. The paper proposes several policy options to improve energy trade stability in China, with special attention to increasing global climate risks.
Article
Economics
Simona Bigerna, Piyush Choudhary, Nikunj Kumar Jain, Silvia Micheli, Paolo Polinori
Summary: This study estimates the willingness to pay of Indian urban consumers for a continuous supply of electricity using contingent valuation method. The findings show that the amount consumers are willing to pay depends on the duration of power outages, with households preferring shorter outages. Income and environmental attitude also positively influence higher willingness to pay. These insights can inform policymakers in designing more reliable and customer-centric energy generation and distribution models.
Article
Economics
Temilade Sesan, Unico Uduka, Lucy Baker, Okechukwu Ugwu, Ewah Eleri, Subhes Bhattacharyya
Summary: This study examines the impact of the regulatory framework on rural electrification and universal energy access goals in Nigeria's mini-grid sector. The findings suggest that while the current framework has fostered sector growth, additional measures are necessary to ensure equitable distribution of access among rural populations.
Article
Economics
Rui Shan, Noah Kittner
Summary: Energy storage is a cornerstone in decarbonization planning as it reduces operational costs and greenhouse gas emissions, while enhancing resilience and renewables integration. However, storage developers in different regions have varying economic and environmental considerations, thereby requiring policy intervention to achieve long-term emission reductions.
Article
Economics
Tung Durmaz, Sevil Acar, Simay Kizilkaya
Summary: This study investigates the phenomenon of strategic capacity withholding in the Turkish electricity market and its relationship with the capacity remuneration mechanism. The empirical results provide strong evidence of strategic capacity withholding and show that the capacity mechanism contributes to the duration of failures. The study offers important insights for policymakers, including the implementation of a random verification mechanism and restructuring of the capacity mechanism in Turkey.
Article
Economics
Tii N. Nchofoung
Summary: The study finds that oil price shocks have a negative impact on Africa's energy transition, particularly in rural areas and net crude oil exporting countries. However, oil price shocks cannot explain the urban-rural differences in clean energy access. Therefore, increasing investment in clean energy and technologies in rural areas is necessary to enhance the resilience of the energy sector to oil price shocks.
Article
Economics
Najia Saqib, Muhammad Usman, Ilhan Ozturk, Arshian Sharif
Summary: This study examines the impact of environmental technologies, financial growth, and energy use on ecological footprint and green growth. Environmental innovation and renewable energy deployment contribute to green growth, while financial expansion and non-renewable energy use have negative effects on the environment. The study also identifies causal relationships between different factors.
Article
Economics
Yessica C. Y. Chung, Noxolo Kunene, Hung-Hao Chang
Summary: The Renewable Energy Certificate (REC) is considered an innovative technology for building a green society. This study investigates the impact of REC purchases on stock return and volume in Taiwan between 2017 and 2021. The findings suggest that REC purchases have a positive effect on stock returns of manufacturing firms but not service firms. The frequency of REC purchases is also an important factor in the relationship between REC purchase and firm value. Additionally, the study reveals that public attention to environmental pollution plays a crucial role in positive stock returns and volume, while ESG disclosure is negatively associated with returns and volume.
Article
Economics
Seife Ayele, Wei Shen, Yacob Mulugetta, Tadesse Kuma Worako
Summary: This paper addresses the challenges of governing energy procurement from a mix of non-hydropower renewable energy sources supplied by independent producers. Building on political economy analysis and five case studies of independent producer projects from Ethiopia, it seeks to understand the root causes of the protracted delays and limited extent of procurement by independent producers. The key contestations lie in managing long term contracts, risk, uncertainty and in developing the institutional and human capacity to transition.