6,498 results
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2. Enhancing Subsequent Kraft Fiber Dewatering Properties by using Fiber Polyamide-epichlorohydrin (PAE) Treatment to Prepare a Dry Pulp Product.
- Author
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Korpela, Antti, Tanaka, Atsushi, and Asikainen, Jaakko
- Subjects
SULFATE pulping process ,CONSUMPTION (Economics) ,PAPER pulp ,ENERGY industries ,ENERGY consumption - Abstract
The energy needed for the dewatering and drying of wet paper web represents around half of the energy consumption of papermaking processes. The present work examined whether the dewatering and drying of paper could be enhanced during a previous pulp drying process by pretreating the fibers with polyamide-epichlorohydrin (PAE). According to the hypothesis, the cured PAE restrains swelling and water absorption of water-wetted fibers by forming a fiber-bound, self-crosslinked polymernetwork on the fiber surfaces. The hypothesis was tested by adding PAE to never-dried kraft pulp slurry followed by pulp thickening, drying, and final curing of the PAE-resin. After this, the PAE-treated fibers were dispersed in water, and their water retention values (WRV) and Shopper-Riegler values (°SR) were measured. The PAE pretreatments notably decreased the fibers' WRV and °SR, indicating improved water removal of paper web in the paper machine forming and drying section. Compared to chemical crosslinking pretreatments, which also can be used to decrease fibers WRV and °SR-value, a notable advantage of PAE-pretreatment is milder required curing conditions of the PAE, which makes implementation of the method easier in practice. Due to decreased fiber-to-fiber bonding capability, the PAE-treated specialty fibers could take advantage especially as a bulking aid of paperboard, tissue, and absorbent materials. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Enhancing Through Air Drying Process Efficiency: Investigating Laboratory-to-Pilot Scale Correspondence and Impact of Process Variables on Tissue Paper Manufacturing.
- Author
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Sjöstrand, Björn, Tremblay, Bruno, and Danielsson, Mikael
- Subjects
- *
HEART beat , *ENERGY consumption , *INDUSTRIAL costs , *ENERGY industries , *TISSUES - Abstract
State-of-the-art manufacturing of tissue paper by Through Air Drying provides excellent product performance, although at a high production cost and energy use. In this work, a laboratory scale vacuum suction box was used to mimic the initial dewatering and the Through Air Drying molding, together with a pilot-scale trial. The purpose was to investigate both how the laboratory scale corresponds to pilot scale testing and investigate how fabric design, basis weight, beating, and fibers affect dewatering and sheet caliper. This study reevaluates dewatering mechanisms during molding, challenging the previous hypothesis of pure air displacement dewatering. Results show a parallel mechanism of compression dewatering and air displacement. The influence of rush transfer is examined, impacting the sheets' visual appearance, thickness, and solids content. Correlations between molding box solids content and headbox freeness emphasize significance of fibers and beating levels. Pilot results confirm the link between former solids and molding box solids. Pilot trials validate the laboratory results, facilitating comprehensive simulation of full-scale manufacturing. This research reveals dewatering mechanisms, highlights operational parameters, and enables effective Through Air Drying process design and refinement. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. Does "Paper Oil" Matter? Energy Markets' Financialization and Co-Movements with Equity Markets.
- Author
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Büyükşahin, Bahattin and Robe, Michel A.
- Subjects
STOCK exchanges ,FINANCIALIZATION ,ENERGY industries ,MACROECONOMICS ,CREDIT risk - Abstract
We revisit, and document new facts regarding, the financialization of U.S. energy markets in 2000–2010. We show that, after controlling for macroeconomic factors and physical energy market fundamentals, the strength of energy markets' co-movements with the U.S. stock market is positively related to the energy paper market activity of hedge funds that trade both asset classes. This relation weakens when credit risk is elevated. We find, in contrast, no link with the aggregate positions of commodity index traders in energy futures markets. Our findings have implications for the ongoing debate regarding the financialization of commodities. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
5. Shifting Gear: Trends Shaping Paper and Packaging Industry in 2024.
- Subjects
- *
PAPER industry , *PACKAGING industry , *ENERGY industries , *ELECTRONIC commerce , *ENERGY consumption - Published
- 2023
6. INSTANT DETERMINATION OF MOISTURE AND BULK DENSITY OF WOODCHIPS IN CELLULOSE INDUSTRY.
- Author
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Goltz Kumov, Elisa Pizzaia and Gonçalves Cremonez, Victor
- Subjects
CAPACITIVE sensors ,WOOD chips ,MOISTURE ,WOOD density ,ENERGY industries ,WOOD ,BOILER efficiency ,PAPER industry ,BIOMASS ,BIOMASS energy - Abstract
Copyright of Environmental & Social Management Journal / Revista de Gestão Social e Ambiental is the property of Environmental & Social Management Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
7. ANDRITZ Wins 9th Shoe Press Order from Lee & Man Paper.
- Subjects
- *
ENERGY industries - Published
- 2023
8. Review on recent developments on pulp and paper mill wastewater treatment.
- Author
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Kamali, Mohammadreza and Khodaparast, Zahra
- Subjects
PAPER industry ,WASTEWATER treatment ,ENERGY consumption ,WASTE recycling ,ENERGY industries - Abstract
Economic benefits of the pulp and paper industry have led it to be one of the most important industrial sections in the world. Nevertheless, in recent years, pulp and paper mills are facing challenges with the energy efficiency mechanisms and management of the resulting pollutants, considering the environmental feedbacks and ongoing legal requirements. This study reviews and discusses the recent developments of affordable methods dealing with pulp and paper mill wastewaters. To this end, the current state of the various processes used for pulp and paper production from virgin or recovered fibers has been briefly reviewed. Also, the relevant contaminants have been investigated, considering the used raw materials and applied techniques as the subject for further discussion about the relevant suitable wastewater treatment methods. The results of the present study indicated that adopting the integrated methods, alongside a combination of biological (e.g., anaerobic digestion) and physicochemical (e.g., novel Fenton reactions) treatment methods, can be environmentally and economically preferable to minimize environmental contaminants and energy recycling. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
9. Valmet Introduces Mill-Wide Optimization for Steering Pulp and Paper Mill Operations towards Shared Goals.
- Subjects
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PAPER industry , *PAPER mills , *AUTOMATION , *ENERGY industries , *CONTINUOUS improvement process - Published
- 2023
10. Paper Industry Impacted by High Energy Prices and Eroding Economic Growth in 2022.
- Subjects
- *
PAPER industry , *ECONOMIC development , *ENERGY industries - Published
- 2023
11. Tissue Paper Market Size to Hit USD83.4 Billion by 2031.
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TISSUES ,ENERGY industries ,HYGIENE ,MARKETING ,COMMERCE - Published
- 2023
12. Digitalization in the Renewable Energy Sector.
- Author
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El Zein, Musadag and Gebresenbet, Girma
- Subjects
DIGITAL technology ,ENERGY industries ,RENEWABLE energy sources ,LITERATURE reviews ,ENERGY development ,ENERGY consumption - Abstract
This study explored the association between renewable energy uptake and digitalization in the sector by reviewing relevant literature (published 2010–2022), with the aim of identifying the existing utilization of digital technologies within the sector, challenges to adoption, and future prospects. Different search engines (SCOPUS, Web of Science, and Google Scholar) were used to locate relevant papers and documents. The results revealed the high significance of digital technologies in supporting the renewable energy sector, with high costs and security risks representing the key challenges. Most papers reviewed had a positive outlook, but recommended further research and development for effective energy transition and resilient infrastructure. The current drivers of the integration of digital technologies to support the diffusion of renewable energy sources appear to extend beyond energy demand and involve many aspects of sustainability and sustainable development. Compared with previous reviews, this work has unique scope and novelty since it considers the bigger picture of the coupling between digitalization and the renewable energy sector, with a greater focus on critical areas in these two interconnected bodies that need to be addressed. The relatively small sample of relevant papers (69 from 836 hits) located in the literature review confirms the need for more research covering the subject in greater depth. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
13. Research On An Energy Collaboration Approach On Dryer Section Energy Networks Of Paper Machine Based On An Extended Contract Net Protocol I.
- Author
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Zhang, Dinghua, Liu, Huanbin, Li, Yugang, and Zhou, Yanming
- Subjects
PAPERMAKING machinery ,ENERGY industries ,CONTRACTS ,SPECTRAL energy distribution ,ENERGY consumption ,NEGOTIATION - Abstract
Abstract: Based on energy flow characteristics of the paper machine drying section, the dryer section can be divided into network. The Agents applied for the proxy of energy network node. A collaboration approach based on an extended contract net protocol for dryer section energy networks of paper machine is presented, applied for Multi-level negotiation protocol to solve distribution of energy allocation and use of conflict that exist in energy used in paper machine dryer section, in which the trust degree, threshold, and priority are introduced into the classical contract net protocol. This approach resolves energy distribution conflict in the dryer section network through bidding, game theory between the central control Agents and node Agents. [Copyright &y& Elsevier]
- Published
- 2011
- Full Text
- View/download PDF
14. Russian newspaper staff rebel against editor accused of censorship; Journalists at Vedomosti warn paper is in danger of becoming 'another controlled media outlet'
- Subjects
OJSC Rosneft ,Petroleum industry ,Editors -- Censorship ,Newspapers ,Censorship ,Rebels ,Constitutional amendments ,American newspapers ,Web sites (World Wide Web) ,Energy industries ,Censorship issue ,News, opinion and commentary - Abstract
Byline: Andrew Roth in Moscow Journalists at the Russian business newspaper Vedomosti have rebelled against their new management after the paper's editor was accused of banning criticism of constitutional amendments [...]
- Published
- 2020
15. Guest Editorial: Artificial intelligence‐empowered reliable forecasting for energy sectors.
- Author
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Mahmoud, Karar, Guerrero, Josep M., Abdel‐Nasser, Mohamed, and Yorino, Naoto
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ENERGY industries ,ARTIFICIAL neural networks ,MACHINE learning ,FORECASTING ,QUANTILE regression ,CONVOLUTIONAL neural networks ,DEMAND forecasting - Abstract
This document is a guest editorial from the journal IET Generation, Transmission & Distribution. It discusses the use of artificial intelligence (AI) in reliable forecasting for energy sectors. The editorial highlights the challenges of integrating renewable energy sources and fluctuating electricity demand, and emphasizes the importance of accurate forecasting for system operators. The document also provides summaries of several papers included in a special issue on AI-empowered forecasting in energy sectors, covering topics such as load forecasting, wind power prediction, and control parameter optimization. The editorial concludes by recommending further research and practical implementations of AI approaches in the energy sectors. [Extracted from the article]
- Published
- 2024
- Full Text
- View/download PDF
16. Supply And Daily Monitoring In Written Press (paper And Digital) In Digital Platform Of Daily Information Related To Idae, Ministry For The Ecological
- Subjects
Renewable energy ,Budgets ,Energy management ,Energy industries ,Energy efficiency ,Business, international - Abstract
Tenders are invited for Contracting of the services corresponding to the supply and daily monitoring in written press (paper and digital) in digital platform of daily information related to idae, [...]
- Published
- 2020
17. The Rebound Effect in Energy-Intensive Industries: A Factor Demand Model with Asymmetric Price Response.
- Author
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Dahlqvist, Anna, Lundgren, Tommy, and Marklund, Per-Olov
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ENERGY tax ,ENERGY consumption ,PAPER pulp ,ENERGY industries - Abstract
The purpose of this paper is to estimate industry-specific direct rebound effects and to relate these effects to industry energy efficiency programs. The rebound effect represents economic behavior that will offset energy savings from energy efficiency improvements. The paper focuses on four energy intense sectors in Sweden; pulp and paper, iron and steel, chemical, and mining, during 2001-2012. We apply a factor demand model that allows for asymmetric energy price responses, i.e. that firms respond differently to increasing and decreasing energy prices. The results show considerable rebound effects. For electricity and non-fossil fuels, efficiency improvements could even 'backfire'. To mitigate this effect, policies, such as voluntary energy efficiency programs, should be combined with an increase in energy taxes if the ambition is to reduce overall energy use. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
18. Denmark : White paper: The world has the solutions to solve the climate crisis
- Subjects
Global warming ,Fossil fuels ,Coal fired power plants ,Green technology ,Air pollution control ,Renewable energy ,Nuclear energy ,Energy industries ,Global temperature changes ,Technology ,Climate change ,Business, international - Abstract
Replacing fossil fuels with green energy is the main lever to combat climate change, says energy company rsted in a new white paper. The power sector is key to decarbonising [...]
- Published
- 2019
19. Australia : Insights Paper confirms Tasmanias renewable energy potential
- Subjects
Renewable energy ,Energy industries ,Batteries ,Investments ,Business, international - Abstract
In great news for Tasmania, the Australian Energy Market Operators ISP Insights paper has confirmed the importance of increased interconnection and large scale storage solutions across the national electricity market. [...]
- Published
- 2019
20. Japan : The Cabinet Approves the FY 2018 Annual Report on Energy (Japans Energy White Paper 2019)
- Subjects
Energy industries ,Energy policy ,Business, international - Abstract
The Annual Report on Energy (also known as the Energy White Paper) overviews the measures on energy that the Government of Japan conducted in the previous fiscal year, which is [...]
- Published
- 2019
21. Plain Copier Paper
- Subjects
Wind power plants ,Wind power ,Renewable energy ,Energy industries ,Business, international - Abstract
Tenders are invited for Plain copier paper 500 Major organization : MINISTRY OF NEW AND RENEWABLE ENERGY INDIAN RENEWABLE ENERGY DEVELOPMENT AGENCY Address : Chennai National Institute Of Wind Energy [...]
- Published
- 2019
22. Provision Of Services Related To The Development Of A Study Paper Related To Strategies For The Deep Decarbonisation Of Industry
- Subjects
Green technology -- Analysis ,Energy industries ,Best practices ,Technology ,Business, international - Abstract
Request for proposal: Provision of services related to the development of a study paper related to strategies for the deep decarbonisation of industry. Clean Ministerial and its work The Clean [...]
- Published
- 2019
23. Aspen Plus ENRTL Model for HS3 Blend, a Novel Solvent for CO2 Capture.
- Author
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Gilardi, Matteo, Bisotti, Filippo, Knuutila, Hanna K., Tobiesen, Andrew, and Bonalumi, Davide
- Subjects
CARBON sequestration ,ENERGY industries ,PROPANOLS ,THERMODYNAMICS ,ABSORBENT paper - Abstract
Carbon Capture and Storage (CCS) is among the main available options to cut CO
2 emissions from the industry and energy production sectors, but the high costs of current CCS technology still limit their large-scale applicability. For this reason, there is increasing interest in alternative absorbents with the potential to lower the energy and environmental impact of carbon capture. The estimation of costs, as well as process design and optimization, require accurate, reliable, and stable thermodynamic models. This article presents the development and testing of an ELECNRTL model in Aspen Plus for the characterization of HS3, an innovative blend made up of a primary (3-amino-1-propanol) and a tertiary (1-(2-hydroxyethyl) pyrrolidine) amine studied in the H2 02 0-funded Realise project. The vapor-liquid equilibrium (VLE) model is fitted to in-house experimental data covering a wide range of loadings and operating temperatures. A plot for the system speciation in the liquid phase is obtained. Moreover, a comparison between the heat of absorption data and model prediction is also included. The proposed VLE model shows good accuracy and numerical stability in the whole temperatures and loading ranges of interest for industrial CO2 capture applications. [ABSTRACT FROM AUTHOR]- Published
- 2023
- Full Text
- View/download PDF
24. ENERGY PROJECTS, SOCIAL LICENCE, PUBLIC ACCEPTANCE AND REGULATORY SYSTEMS IN CANADA: A WHITE PAPER.
- Author
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Colton, John, Corscadden, Kenneth, Fast, Stewart, Gattinger, Monica, Gehman, Joel, Findlay, Martha Hall, Morgan, Dylan, Sayers, Judith, Winter, Jennifer, and Yatchew, Adonis
- Subjects
- *
ENERGY industries , *SOCIAL license to operate , *SOCIAL media , *SOCIAL acceptance , *COURT system - Abstract
It has become increasingly difficult in Canada to gain and sustain public acceptance of energy projects. Increased levels of protest, combined with traditional media and social media coverage of opposition, combine to suggest decreased public acceptance of energy projects. Decision-makers have responded accordingly, and a variety of energy projects have either been delayed or put on hold indefinitely. This is true for both conventional and renewable energy projects and in many different regions across the country. A number of proposed energy projects have recently faced opposition from various stakeholder groups. For instance, the decision of the Joint Review Panel for the Northern Gateway Pipeline is being challenged in Canada's court system. First Nations groups have issued an ultimatum to the Federal Government that it must choose between Site C (a proposed hydro dam) and liquefied natural gas development in B.C. Rapid expansion of wind energy projects in Ontario has engendered lengthy and costly appeals and the rise of an anti-wind social movement. In Nova Scotia, tidal energy development is being positioned as a new renewable energy option; gaining public acceptance is critical in light of recent opposition to wind energy development. As these experiences suggest, not only has the regulatory process become more contentious, but also an apparently new concept -- social licence -- has had popular appeal. This white paper reports on the results of a year-long interdisciplinary collaboration aimed at identifying and summarizing extant research regarding social licence and related concepts, with a particular emphasis on understanding its implications for public acceptance of energy projects in Canada, and their related regulatory processes. In particular, this research addressed the following questions: 1. What is the history and scope of the term 'social licence', both in the context of energy project development and more generally? What are the strengths and limitations of this term? How does it help or hinder energy policy, regulatory debates and decision-making? 2. What are the similarities and differences between the notion of social licence and established concepts and other concepts or frameworks? 3. From the standpoint of public acceptance of energy projects, is Canada's regulatory system broken? From whose perspective? And what alternatives might be considered? 4. What are barriers to, and enablers of a licence within the regulatory process -- legal, social or otherwise? 5. What role does social licence play in the larger picture: How valid is the concept of social licence? Can social licence actually stop a project, or determine the outcome of an election? Does it create a valuable dialogue about a project? When opposition to projects leads to the arrest of people breaching an injunction or violent confrontations, what role can social licence play in promoting an alternative approach? In addition to a comprehensive look at the concepts of public acceptance and social licence and their applications to Canada, this white paper arrives at certain conclusions (Section 5) and makes recommendations (Section 6) for improving Canada's regulatory systems and improving public confidence in Canada's various energy-related regulatory agencies. For instance, as the federal government embarks on its agenda to amend the regulatory process, the research presented here can inform how the government can best carry out its mandate of reform while balancing the economic, environmental, political, social, and security-related issues pertinent to regulators, federal and provincial governments, industry, First Nations, environmental groups and the general public. The appeal of the term "social licence" derives from the inclusivity and equitability that it seems to imply. But populist pressure for increased voice and regulatory or judicial intervention, arising out of a sense of disaffection or disenfranchisement, is hardly a novel phenomenon: historical context and the lessons learned therefrom are essential in evaluating the idea and situating the debate within a meaningful framework. Social licence entails an additional layer of 'regulation', albeit an amorphous one. A central lesson of the 20th century experience is that regulation comes at a cost, and that excessive regulation and intervention can lead to paralysis and 'government failure'. The implication is that regulation should be relied upon where it is necessary, and should be implemented in sensible ways. One of the conclusions of this report is that public trust and confidence can be enhanced by rationalizing existing regulatory vehicles to reduce the common perception that decisions are sometimes politically motivated and ensuring that decisions are made at the right levels of government. The institutionalization of social licence also has identifiable risks. It is likely to increase incentives for "rent-seeking behaviour." The threat of veto, or even obstruction, endows the affected group with leverage that can result in extraction of rents that are disproportionate to impacts. It also increases regulatory and political uncertainty associated with a given project, discouraging investment, or requiring returns higher than are merited by the inherent riskiness of the proposed undertaking. The term "social licence" needs to be further analyzed, and, if used, used with care. The concept originated in the mining sector as the "social licence to operate," and as the concept has migrated to the energy sector, it appears to have broadened in scope so that its meaning has become unclear, amorphous and confusing. Other terms such as "acceptance," "support" or "public confidence" may be more appropriate in the energy sphere. Regulators, policy-makers and politicians should refrain from the use of these terms without a clear understanding of their implications. Our specific recommendations include: 1. Governmental Coordination. Greater coordination of regulatory processes between the federal and provincial governments is required and should be directed towards enhancing beneficial outcomes for all affected stakeholders (Section 6.1). 2. Stakeholder Engagement. A consistent, transparent and rigorous system for identifying and reaching out to stakeholders is essential to regulatory efficiency and efficacy (Section 6.2). 3. Social Licence as a Concept. When it comes to energy development, the term "social licence" needs to be further analyzed, and, if used, used with care (Section 6.3). 4. First Nations. The federal and provincial governments should take ownership of this duty to consult and ensure that it is done in a comprehensive manner that has been set out by both domestic and international law (Section 6.4). 5. Changes to the NEB Act. An independent review of the changes to the NEB Act regarding time to consult and the list of those who can be consulted should be undertaken to ensure the NEB is unconstrained in its ability to regulate appropriately and has public confidence in its mandate and decisions (Section 6.5). 6. Make Broader Use of Information Gained during Assessment Processes. Energy regulators should consider mechanisms to report recurring concerns that are outside of the scope of their mandate (Section 6.6). 7. Compliance after Project Approval. There is a need for publicly available, timely and relevant data relating to the compliance and post-approval status of projects. Data should be placed on a government portal to increase accessibility to stakeholders (Section 6.7). 8. Cross-Examination in Regulatory Hearings. The extensiveness of permitted cross-examination, and indeed the entire regulatory proceeding, needs to be proportionate to the magnitude of the impacts of the ultimate decision (Section 6.8). [ABSTRACT FROM AUTHOR]
- Published
- 2016
25. Voith and Partners Announce FOREST Initiative: Research Project Aims to Develop Digital Framework for Optimizing Energy and Material Flows in Paper Production.
- Subjects
- *
ENERGY industries , *MATERIALS - Published
- 2023
26. Strategic energy management in energy-intensive enterprises: a quantitative analysis of relevant factors in the Austrian paper and pulp industry.
- Author
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Posch, Alfred, Brudermann, Thomas, Braschel, Nina, and Gabriel, Magdalena
- Subjects
- *
ENERGY management , *ENERGY industries , *ANALYTIC hierarchy process , *ENERGY consumption , *MATHEMATICAL combinations - Abstract
Increasing energy prices and market volatilities force energy intensive industries to implement energy management systems in order to ensure competitiveness. In this paper, we focus on the strategic level of energy management, specifically, on the analysis of the internal and external conditions that form the basis for strategic development. For this, we selected the case of the Austrian paper and pulp industry. We applied a hybrid method by combining an analysis of strengths, weaknesses, opportunities and threats with an analytic hierarchy process which was based on a survey of expert opinion. The results show that cost-related factors predominate. According to our analysis, the four most important factors are all directly linked to energy costs, energy efficiency, and the energy market. Experts pay little attention to environmental issues or to energy market volatilities. Apart from that, the combination of an analysis of strengths, weaknesses, opportunities and threats with an analytic hierarchy process promises to be a valuable tool for strategic energy management. This is especially true for energy intensive companies and/or sectors, since it enables decision makers to take strategic decisions based on a systematic understanding of the main issues. [ABSTRACT FROM AUTHOR]
- Published
- 2015
- Full Text
- View/download PDF
27. Advocacy Paper On Sustainable Industrial Development In The Cis Region
- Subjects
Real estate development ,Green technology ,Sustainable development ,Energy industries ,Business, international - Abstract
Tenders are invited for Advocacy paper on sustainable industrial development in the CIS region Scope of Contracting Services The Subcontractor Is Responsible for the Preparation and Consolidation of an Advocacy [...]
- Published
- 2018
28. Syngas Purpose Pyrolysis-Gasification of Organic Fractions of MSW over Metal-Loaded Y-Zeolite Catalysts.
- Author
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Horváth, Dominik, Tomasek, Szabina, Bobek-Nagy, Janka, Tóth, Eliza, Kurdi, Róbert, and Miskolczi, Norbert
- Subjects
SYNTHESIS gas ,HIGH temperatures ,TUBULAR reactors ,SOLID waste ,CATALYSTS ,ENERGY industries - Abstract
The increasing environmental consideration and the growth of instability of the energy market call for methods that can process the organic fraction of municipal solid waste (OFMSW) into fuel instead of disposal. Due to the pyrolysis and gasification that are efficient procedures to achieve valuable products, gasification of OFMSW with different particle sizes and compositions was carried out in the presence of Ni and Ni-Ce-loaded Y-zeolite in a multizone tubular kiln reactor. During the experiments, 500°C was applied in the first reactor zone, while the 2
nd zone was at an elevated temperature of 600°C or 900°C in the presence of steam. The combined pyrolysis and gasification experiments were also carried out without a catalyst with the same operating conditions. The feedstock was collected from the organic fraction of a Hungarian mechanical-biological treatment (MBT) plant and was separated into four different fractions based on particle size: <1 cm dry biomass and fine particles, 1-2 cm paper-rich, 2-6 cm paper and plastic-rich feedstocks, and <6 cm mixture of these fractions. During the experimental work, product yields; gaseous product composition; the ratio of H2 /CO, CO2 /CO, and CH4 /CO; and lower heating value were determined in the function of feedstock composition, the applied temperature, and catalysts. It was found that the hydrogen content and H2 /CO ratio of gaseous products were increased due to catalyst application and temperature elevation in the 2nd reactor zone. The addition of Ce to the Ni/Y-zeolite catalyst was advantageous in the case of hydrogen formation at a lower temperature (600°C). The hydrogen and methane content of products obtained from the catalytic pyrolysis-gasification of paper and plastic-rich OFMSWs on elevated temperatures were higher, which increased the lower heating value of those products. Based on the elemental analysis of the obtained solid residues, it was found that paper/plastic-rich feedstock released hydrogen and carbon with a higher extent. 1-2 cm feedstock-related solid residues had the highest H/C ratio which caused a 12.5-12.8 MJ/kg gross heating value. As a result, combined pyrolysis and gasification appear to be an efficient method to attain valuable outputs from OFMSW not only in gas but also in solid products. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
29. Modeling the Influence of Internal Audit Efficacy on Energy Saving Behavior: The Role of Sustainability Audit.
- Author
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Appiah, Michael Karikari, Dordaah, Joseph Naah, Sam, Aloysius, Yeboah, Samuel Ankomah, and Amaning, Newman
- Subjects
INTERNAL auditing ,SUSTAINABILITY ,RISK managers ,ENERGY industries ,STRUCTURAL equation modeling - Abstract
Amidst efforts to combat high corruption incidence in Ghana, the Office of the Special Prosecutor Act, 2017 (Act 959) was enacted to investigate and prosecute specific cases of alleged or suspected corruption offenses in accordance with the United Nations Convention against Corruption. Contrariwise there is a weak accountability, probity, and transparency in the Ghanaian Public Sector as asserted by the Transparency International release (2018-2022). Against this backdrop, this aims to analyze the implications of internal audit efficacy (measured with; risk management, environmental sensitivity, and audit effectiveness), on energy saving behavior, and develop a baseline model to enhance energy saving behavior through sustainability audit. The paper utilized a quantitative research approach and cross-sectional survey design to draw data from 405 public officials across different public sector agencies in Ghana. Variance-Based Structural Equation Modeling and SMART-PLS version 3.3.8 have been used to validate the hypotheses herein. The paper has found that internal audit efficacy has significant effect on sustainability audit and energy saving behavior. Moreover, the paper has revealed sustainability audit significantly mediates the relationship between internal audit efficacy and sustainable energy saving behavior among public sector officials. These indicative results have implications on the newly developed model that could be used to enhance energy saving behavior in a country where such studies have been inadequately explored. These results have reaffirmed the relevance of internal audit efficacy and sustainability audit in energy transition polices as well as the realization of sustainable development goals. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
30. Standards of Disciplinary Conduct for the Corporate Directors: Perspective of the United States of America.
- Author
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ALIAJ, Erjola and TIRI, Edvana
- Subjects
CORPORATE directors ,LEGAL documents ,CONFLICT of interests ,ENERGY industries ,DELEGATION of authority - Abstract
Administration of corporate activity is the daily preoccupation of corporate directors. Delegation of decision-making to the director, who is an independent player within the company, can clearly create the risk of conflicting his interests with the interests of the shareholders. This potential conflict of interests is a consequence of the division of ownership of the company and the control powers of the company's commercial activity. The delegation of decision-making authority to the directors of the company may cause the risk of the temptation of the director to the assets of the company. In addition, directors may also be tempted by opportunities for profit that arise during the exercise of their function, instead of using these opportunities for the company. For this reason, it is necessary to foresee clear disciplinary parameters, to avoid and eliminate the conflict of interest, as well as the prohibition of competition. In the present paper, through a legal assessment, special attention has been paid to the main categories of standards: elimination of conflict of interest and prohibition of competition. The main aim of this paper is to analyze the US doctrine, legal provisions, which regulate the two standards of disciplinary conduct for the corporate directors, as well as the court practice in this regard. Also, an important objective of this paper is that it may serve as an important basis for further comparative studies in this field with other jurisdictions. Such analysis is based on the qualitative method, which contains also the research, analytical, descriptive, interpretive methods. The result of this paper will stimulate debate in the academic level and contribute to further improvements of our company legislation, as well to the legal doctrine in Albania that lacks such. [ABSTRACT FROM AUTHOR]
- Published
- 2024
31. The transformation of the organic energy system: the Swedish perspective.
- Author
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LINDMARK, MAGNUS and OLSSON-SPJUT, FREDRIK
- Subjects
POWER resources ,ENERGY industries ,INDUSTRIALIZATION ,PAPER industry ,FORESTS & forestry ,IRON industry ,ENERGY level transitions ,FUELWOOD - Abstract
Copyright of Historia Agraria is the property of Historia Agraria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
- Full Text
- View/download PDF
32. Does corporate governance differ by sector? An analysis under good practice criteria. The case of Spain.
- Author
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Corral-Lage, Javier, Garayeta, Asier, Trigo, Eduardo, and De la Peña, J. Iñaki
- Subjects
CORPORATE governance ,CONSUMER goods ,ENERGY industries ,REGRESSION analysis ,WAGES - Abstract
The aim of this paper is to analyse how the factors remuneration, supervision and board structure influence the good corporate governance of companies in the Spanish Continuous Market. This paper develops, for the first time, an index based on the recommendations defined in the Good Governance Code of Listed Companies. This paper measures remuneration, monitoring and governance structure and employs a multiple linear regression model modelling corporate governance as a latent factor. Based on this model, this research presents empirical evidence of the relationship between corporate governance and the defined variables, considering Spanish Continuous Market firms disaggregated by sector. To date, there are no studies that have taken into account the analysis for all sectors in the same country. Among the conclusions, the research finds that the larger a company is, the better the mechanisms for providing an optimal degree of governance, as is the case in the oil, energy and technology sectors. In another sense, the higher the number of proprietary directors the lower the levels of good governance, mainly in basic materials, industrial, construction and consumer goods and services companies. The empirical results also justify the inclusion of Corporate Governance-related factors in governance regulation. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
33. Avoid–Shift–Improve: Are Demand Reduction Strategies Under-Represented in Current Energy Policies?
- Author
-
Jarre, Matteo, Noussan, Michel, and Campisi, Edoardo
- Subjects
ENERGY consumption ,SUSTAINABILITY ,ENERGY policy ,ENERGY industries ,DATABASES ,CARBON nanofibers - Abstract
The Avoid–Shift–Improve framework has been used since its conception in the 1990s to help decision-makers prioritize action towards environmental sustainability in the transport sector. The core of the framework establishes a clear priority of action among the three main strategies that give it its name, thus highlighting the prominent role transport demand reduction should have within policy discussions. However, although its general formulation allows for a fruitful application to other sectors, the approach and its definitions have rarely been extended beyond transport. In particular, the energy sector could significantly benefit from an application of its methodology since the prioritization of energy demand reduction over energy efficiency would be in line with an optimized path towards decarbonization. This paper outlines a theoretical application of the A-S-I framework to the energy sector that allows the categorization of energy policies in terms of Avoid, Shift, or Improve strategies. Moreover, the paper presents an analysis of several energy policies databases to evaluate to what extent policies are addressing energy demand reduction, shift to less-carbon-intensive energy sources or energy efficiency. The results of the study show that most energy-related policies seem to support improving efficiency in current technology (18–33% of policies, depending on the database that is considered) and shifting towards low-carbon sources (28–48% of policies) more than reducing or altogether avoiding energy demand in the first place (6–22% of policies). Further research is recommended to strengthen the results, especially by evaluating the significance of each policy in terms of committed investment, as well as to understand the main factors that contribute to Avoid-type policies being under-represented in the energy sector. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
34. Multi-objective planning of integrated energy system based on CVaR under carbon trading mechanism.
- Author
-
Pan, Dong, Zhang, Li, Wang, Bao, Jia, Jianxiong, Song, Zhumeng, Zhang, Xin, Hui, Hongxun, and Zhang, Yunning
- Subjects
CARBON offsetting ,CARBON pricing ,POWER resources ,VALUE at risk ,OPERATING costs ,CARBON nanofibers ,ENERGY industries - Abstract
In order to address the planning problem of integrated energy system (IES) under the goal of "dual-carbon", this paper proposes a multi-objective planning method for IES with carbon trading mechanism based on CVaR (Conditional Value at Risk). Firstly, this paper establishes the IES energy supply equipment model and the improved stepped carbon trading model. Moreover, this paper proposes the IES multi-objective two-layer planning model based on the consideration of carbon trading cost. The upper layer of the planning model takes the optimization of economy and environmental as the goal to realize the rational planning of the integrated energy system. The lower layer model takes the minimum operating cost as the goal to optimize the system operating conditions and verify the rationality of the planning results. Then, the uncertainty model based on mean-CVaR is established for the uncertainty of carbon trading price and new energy output in the planning process. Finally, this paper sets up cases and solves the model using non-dominated sorting genetic algorithm-II (NSGA-II) and solver, which shows that the proposed method can realize the IES low-carbon planning while guaranteeing the economy. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
35. Editorial: Enabling technologies and business models for energy communities.
- Author
-
Burgio, Alessandro, Jasiński, Michał, and Leonowicz, Zbigniew
- Subjects
CLEAN energy ,BUSINESS models ,ENERGY industries ,ENVIRONMENTAL policy ,RENEWABLE energy transition (Government policy) ,CHILDREN of military personnel ,GREEN business - Abstract
This Research Topic on "Enabling Technologies and Business Models for Energy Communities" presents a comprehensive exploration of critical facets in the realm of sustainable energy transitions. The Research Topic encompasses diverse topics, ranging from smart energy frameworks for urban communities and off-grid renewable energy deployment in Mexico to the impact of institutional support on the coalbed methane industry. It further investigates complex grid investment decisions, solar-based irrigation adoption in water-scarce regions, and risk management in power supply projects. Additionally, the Research Topic delves into financial aspects, exploring the pricing of Public-Private Partnership (PPP) project Asset-backed Securities (ABS) products, the impact of managerial competence on corporate carbon performance, and equity-based predictions for the energy industry. The influence of innovation on fossil fuel abandonment in low and middle-income countries and the significance of climate risk for green innovation in heavy-polluting industries are also examined. A regional perspective is provided on the technological convergence of hydrogen energy, and the interplay between renewable energy, Gross Domestic Product (GDP), and CO2 emissions in highly-globalized countries is scrutinized. Lastly, the effects of green credit policy on the risk of stocks prices crash are investigated. Together, these contributions offer a holistic understanding of the challenges and opportunities in enabling technologies and business models for energy communities, contributing valuable insights for researchers, policymakers, and industry stakeholders striving for a sustainable energy future. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
36. Understanding wind turbine power converter reliability under realistic wind conditions.
- Author
-
Alsaadi, Sermed, Crabtree, Christopher J., Matthews, Peter C., and Shahbazi, Mahmoud
- Subjects
WIND turbines ,WIND power ,WIND speed ,ENERGY industries ,IDEAL sources (Electric circuits) - Abstract
The reliability of wind turbine power converters is crucial for analyzing wind energy project costs, and for estimating maintenance and downtime. The published literature in this field relies on evaluating the reliability effect of wind speed to estimate the converter lifetime. However, this paper demonstrates that wind turbulence intensity, which has not been widely considered in similar reliability analyses, shows a significant impact on converter lifetime. This paper uses 821 10‐min wind speed time series sampled at 1 Hz on the two most commonly deployed wind turbine converter topologies: the two‐level voltage source and the three‐level neutral point clamped. Electromechanical and thermal modelling, combined with statistical analysis shows that mean wind speed and turbulence intensity both impact the lifetime of both converter topologies. However, the paper estimates that the three‐level converter can operate 2.4 to 4.0 times longer than the two‐level converter depending on the operating wind speed and turbulence intensity. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
37. A game model based optimisation approach for generalised shared energy storage and integrated energy system trading.
- Author
-
Tao, Caixia, Duan, Yunxin, Gao, Fengyang, and Zhang, Jiangang
- Subjects
MATHEMATICAL optimization ,ENERGY industries ,INTEGRATED marketing ,ECONOMIC systems ,ENERGY storage - Abstract
In the context of integrated energy systems, the synergy between generalised energy storage systems and integrated energy systems has significant benefits in dealing with multi-energy coupling and improving the flexibility of energy market transactions, and the characteristics of the multi-principal game in the integrated energy market are becoming more and more obvious, but it is difficult to improve the flexibility of the transactions between "source-load-storage" in a one-way master–slave game structure, and the problem of how to establish an optimisation strategy for the coordination of integrated energy systems and energy storage systems is an urgent issue. How to establish a coordinated optimisation strategy of integrated energy system and energy storage system is an urgent problem. Therefore, this paper proposes a generalised shared energy storage and integrated energy system transaction optimisation method based on a two-stage game model, which improves the flexibility of the system transaction by constructing a two-stage game energy transaction model in which the subject acts as a leader and a gamer. Compared with the current one-way game model that does not consider the game on the energy storage side, the coordinated optimisation method proposed in this paper enables the energy storage side to participate more actively in the scheduling, which improves its revenue by 20.6%, the revenue on the energy-using side by 6.3%, and the overall revenue of the system by 5.4%, and at the same time, the load demand response regulation effect is more obvious, so the energy scheduling strategy proposed in this paper is able to weigh the interests of each subject and increase the overall economic benefits of the system. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
38. A Status Update and the Development Progress of the HTR Code Package.
- Author
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Zhang, Jiaxuan, Liu, Chunyu, Li, Jiaming, Macián-Juan, Rafael, and Castaldo, Paolo
- Subjects
CONTROL elements (Nuclear reactors) ,ENERGY industries ,CARBON offsetting ,THRESHOLD energy ,COMPUTER programming ,PEBBLE bed reactors - Abstract
As a critical component of the energy sector, the high‐temperature gas‐cooled reactor (HTR) system plays an important role on the road to carbon neutrality. As a flagship of the safety analysis codes, the HTR code package (HCP) has been developed to provide a comprehensive modeling and simulation platform of the HTR system under operational and accidental conditions, especially for pebble bed reactors. A variety of individual legacy HTR computer codes were integrated into a consistent code package using flexible and efficient programing techniques and standards, and the know‐how gained over decades in HTR safety studies was preserved. This paper gives a state‐of‐the‐art overview in HTR studies and presents the new flexible curtain‐based control rod system that has been recently implemented. This method involves flexible manipulation of isotope concentrations and utilizes C++ object‐oriented programing principles while incorporating the legacy codes. Comparative analyses with established codes such as Serpent and ATHLET underscore the precision and reliability of the HCP, thereby enhancing its applicability in HTR design and safety evaluations. Finally, the paper outlines prospective avenues for further advancing the HCP, underscoring its evolving role in shaping the future of HTR development and analysis. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
39. Exploring Flexibility Potential of Energy-Intensive Industries in Energy Markets.
- Author
-
Luciani, Laureana, Cruz, Juliana, Ballestin, Victor, and Mselle, Boniface Dominick
- Subjects
ENERGY industries ,TECHNOLOGICAL innovations ,ELECTRIC power consumption ,PHARMACEUTICAL industry ,CEMENT industries - Abstract
The European Union, in pursuit of the goal of reducing emissions by at least 55% by 2030 and achieving climate neutrality by 2050, is deploying different actions, with industry decarbonization as a key strategy. However, increasing electricity demand requires an intensification of energy generation from clean technologies, and the energy system's expansion is hindered by renewable generation's climatic dependencies and the imperative for substantial electrical infrastructure investments. Although the transmission grid is expected to grow, flexibility mechanisms and innovative technologies need to be applied to avoid an overwhelming growth. In this context, this paper presents a thorough assessment, conducted within the FLEXINDUSTRIES project, of the flexibility potential across seven energy-intensive industries (automotive industry, biofuel production, polymer manufacturing, steel manufacturing, paper mills, pharmaceutical industry, and cement production). The methodology followed during the analysis entails reviewing the state-of-the-art existing flexibility mechanisms, industries' energy markets engagement, and technical/operational readiness. The results highlight the feasibility of the proposed actions for enabling energy market flexibility through demand-response programs, quantifying energy opportunities, and pinpointing regulatory and technical barriers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
40. Emission Reduction Effects of China's National Carbon Market: Evidence Based on the Power Sector.
- Author
-
Xu, Yingying, Zhao, Shan, Chu, Boxiao, and Zhu, Yinglun
- Subjects
CARBON offsetting ,GREENHOUSE gas mitigation ,CARBON nanofibers ,ENERGY industries ,CARBON emissions ,EMISSION control ,CARBON - Abstract
The power sector is one of the major CO
2 -emitting industries in China. It is also the first key emissions control industry included in China's national carbon trading market established in 2021. Therefore, based on the data of 30 provinces and cities in China from 2015 to 2022, this study analyzes the impact of the national carbon market policy on the carbon emissions of the power industry based on the generalized Difference-in-Difference (DID) model. Based on the method of text analysis, this paper constructs the carbon market policy intensity index of each region and incorporates it into the DID model. Empirical analysis finds that the national carbon market policy can significantly inhibit the carbon emissions of the power industry. However, the heterogeneity analysis of 30 provinces and cities shows that the national carbon market policy has a significant impact on the regions that already have a carbon pilot, but not on the non-pilot regions. Therefore, this paper demonstrates the effectiveness of the national carbon market policy in the power industry emissions control, and also exposes the heterogeneity between regions, providing an important empirical basis for the inclusion of other energy-intensive industries. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
41. The role of municipal ownership for urban net-zero path creation.
- Author
-
Sugar, Katherine
- Subjects
CARBON offsetting ,SUSTAINABLE development ,MUNICIPAL ownership ,ENERGY policy ,ENERGY industries - Abstract
Particularly within recent years, the rising number of city actors worldwide declaring climate emergencies and pledging commitments to carbon neutrality has sparked a spatial turn in broader sustainable transition thinking, noting the importance of the local level for governing sustainable transitions. Using a Geographical Political Economy approach, this paper critically engages with path creation theory and sustainable transitions literature to explore the potential of urban net-zero carbon transitions in a multi-scalar governance framework. The main argument is that municipal ownership across sectors has a fundamental role in sustainable transitions at the city level. This paper makes a distinct conceptual contribution to sustainable transitions literature by drawing on path creation theory to illustrate how municipal ownership is a central tenet of path creation by bringing together local actors and enabling political capacity and agency to control and strategize integrated sustainable urban pathways. Using the transport and energy sectors in Nottingham in the UK, it applies the Path Creation Framework in an urban setting to illustrate that municipal ownership stimulates a positive path creation through three main arguments. First, municipal ownership enables a positive embeddedness and historical legacy in the provision of sustainable urban energy and transport services; second, it facilitates the establishment of skills and expertise that positively reinforces urban political capacity for the pursuit of urban sustainability; and third, it stimulates the creation of innovative urban projects for sustainable and equitable pathways. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
42. Systematic Literature Review of Land Use Conflicts in Northern Sweden—Lessons Learned and Ways Forward.
- Author
-
Elomina, Jerbelle and Živojinović, Ivana
- Subjects
LAND use ,EVIDENCE gaps ,LAND management ,ENERGY industries ,ECONOMIC activity ,REINDEER - Abstract
Land use conflicts are intensifying in Northern Sweden due to the increasing global demand for resources coupled with the green transition. In line with this, a thorough understanding of land use conflicts in the area is becoming necessary as economic activities expand and newer ones are developed. Hence, this paper aims to provide a systematic literature review of research on land use conflicts specific to Northern Sweden, focusing on various economic activities such as forestry, mining, tourism, energy sector and reindeer husbandry. Additionally, we aim to determine lessons learned and suggested ways forward based on a systematic review. We used Scopus and Web of Science on June 2023 and through descriptive statistical analysis of 33 articles, we summarized research trends and gaps. We found three main typologies of conflicts and five main themes of suggested ways forward. Recommendations agree that there should be a broader understanding of the underlying interests of the stakeholders; and there should be an inclusive, more participatory approach to discussing potential solutions, not to create an agreement but to come to an understanding. Beyond academic insights, the findings hold practical relevance for shaping effective land use policies. This paper offers valuable lessons that extend beyond the local context, informing broader discussions and policy considerations for sustainable land management in the larger Arctic setting, where similar challenges and resource demands are unfolding. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
43. Editorial: Energy Market and Energy Transition: Dynamics and Prospects.
- Author
-
Shi, Xunpeng, Ji, Qiang, Zhang, Dayong, Taghizadeh-Hesary, Farhad, and Han, Phoumin
- Subjects
INDUSTRIAL productivity ,RENEWABLE energy transition (Government policy) ,CLEAN energy ,ENERGY industries ,ENERGY economics ,FOSSIL fuels - Abstract
This editorial discusses the dynamics and prospects of the energy market and energy transition. It emphasizes the global shift towards renewable energy due to government initiatives and technological advancements. However, challenges to the transition process exist, such as the impact of the COVID-19 pandemic on global energy demand and fossil fuel prices. The editorial highlights the varying dynamics of the energy market and transition process at the national and firm levels. The collection of research papers covers topics such as renewable energy subsidies in China, efficiency of hydropower electricity generation, and the impact of oil prices on consumer and producer prices. It also explores behavioral economics and the role of natural gas in achieving urban ecological civilization. The editorial acknowledges the contributions of the authors, reviewers, and journal editors in making this collection possible. [Extracted from the article]
- Published
- 2024
- Full Text
- View/download PDF
44. How green credit affects corporate environmental information disclosure: evidence from new energy listed companies in China.
- Author
-
Geng, Limin, Yin, Wenxin, Wu, Xiaoxia, Lu, Xueyuan, Zhang, Can, Zhang, Tinghui, and Zheng, Yan
- Subjects
ENVIRONMENTAL reporting ,DISCLOSURE ,ENERGY industries ,ENVIRONMENTAL quality ,CREDIT control ,ENVIRONMENTAL policy - Abstract
Introduction: Environmental information disclosure is an important means to protect the ecological environment, and global climate change puts forward higher requirements for corporate environmental information disclosure. New energy companies play an important role in addressing climate change and environmental information disclosure, and should strengthen environmental information disclosure and actively participate in ecological environmental protection. Methods: This paper selected Chinese new energy listed companies as the research sample to investigate the impact of green credit on corporate environmental information disclosure, and proposed and empirically tested the hypothesis on the mechanism of the effect of green credit on environmental information disclosure. Results: The regression results indicated that green credit can effectively improve the quality of corporate environmental information disclosure, and this conclusion is still significantly valid after robustness test; The impact mechanism tests showed that green credit can change the level of corporate environmental information disclosure by controlling company size. This paper also tested the heterogeneity and adjustment effects, showing that the relationship between green credit and environmental information disclosure are affected by multiple factors. Discussions: Combining the research of this paper and previous research results, it is found that the positive impact of green credit on corporate environmental information disclosure has been confirmed by academic research and practical verification. However, the implementation effect of green credit policy will be affected by the economic level, regional differences, and the comprehensive impact from companies, financial institutions and government departments. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
45. SINGLE-LEVEL COOPERATION OF THE NATIONAL AUTHORITIES IN OVERSIGHT OF THE WHOLESALE ENERGY MARKETS.
- Author
-
Zahnitko, O.
- Subjects
ENERGY industries ,LETTERS of intent ,DELEGATION of powers ,GOVERNMENT agencies ,INTERNATIONAL organization ,TASK forces - Abstract
The article approaches regulation of the wholesale energy market as a part of coordinated effort to establish single EU-27 energy market. We analyze the forms of the cooperation among the national regulators responsible for competition in the wholesale energy markets; such responsibility is split - between two, three or more regulators. The principle of cooperation dominates in the oversight of the wholesale energy market [over concurrency] and has been institutionalized in the form the memo, statute or code; it had also evolved in the EU acquis. Domestic legal system of a state remains a fundamental framework in the traditional nation-state world order as the domestic regulators (NCA, NRA or SMA), along with domestic authority, get also to vote in the EU authorities. Previous research concentrated on delegation of the sovereign powers to the EU level and, to a lesser extent, on coordination between national and state level in the federal EU Member States. This article, instead, looks at horizontal cooperation on the national level only using the comparative legal method. The national level appears to generate the ideas for the EU level and not vice versa, at least, in the analyzed settings of Belgium, France, Germany, the Netherlands, Spain and the United Kingdom. The working arrangements on the information exchange, pooling of resources in the form of task force, investigation crew, joint unit as well as consultations and mutual comments on the policy proposals are common cooperation formats in each of the countries analyzed, often as a formal legislative rule. At the same time, the EU level inter-agency cooperation for the wholesale energy market can boast only memoranda of understanding, quite short. The research also lay prospectives of how Ukrainian government could fit in with its oversight mandate split among the competition authority, financial market authority and energy regulating authority given decision by the European Council on 14-15 December 2023 to open accession negotiations with Ukraine. This publication is third in the planned series of four comparative legal research papers on the inter-action between the regulatory agencies, the first two papers deal with the characterization of the wholesale energy product and wholesale energy market, undertake a content-analysis of the EU-level agencies interactions; the closing fourth part will systematize regulatory policy proposals for the domestic inter-agency cooperation in Ukraine. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
46. Novel modular multilevel matrix converter topology for efficient high-voltage AC-AC power conversion.
- Author
-
Saidi, F., Djahbar, A., Bounadja, E., Kacemi, W. M., and Fettah, K.
- Subjects
MATRIX converters ,THRESHOLD energy ,ENERGY industries ,INDUSTRIAL design ,PERFORMANCE standards - Abstract
Introduction. This paper delves into the practical application of multilevel technology, particularly focusing on the capacitor-clamped converter as a promising solution for medium-to-high voltage power conversion, with specific emphasis on direct AC-AC switching conditions. Problem. The limitations of conventional single-cell matrix converters (MC) in efficiency and performance for medium-to-high voltage power conversion applications are well-recognized. Goal. The primary objective is to investigate the performance of the 3 phase modular multilevel matrix converter (3MC) with three flying capacitors (FCs) modeling. This investigation utilizes the Venturini method for gate pulse generation, aiming to compare the performance of the 3MC with standard converter designs. Methodology. To achieve the research goal, the Venturini method is adopted for generating gate pulses for the 3MC, representing a departure from conventional approaches. Detailed simulations employing MATLAB/Simulink are conducted to comprehensively evaluate the performance of the 3MC in comparison to conventional converter designs. Results. The simulation outcomes reveal a significant reduction of 73 % in total harmonic distortion (THD) achieved by the 3MC. This reduction in THD indicates improved robustness and suitability for medium-to-high voltage power conversion systems necessitating direct AC-AC conversion. These results highlight the efficacy of the 3MC in enhancing power conversion efficiency and overall performance. Originality. This paper contributes novel insights into the practical implementation of multilevel technology, particularly within the realm of capacitor-clamped converters. Furthermore, the utilization of the Venturini method for gate pulse generation in the 3MC represents an original approach to enhancing converter performance. Practical value. The research findings present significant advancements in multilevel transformer technology, offering valuable guidance for optimizing transformer design in various industrial and renewable energy applications. These contributions serve to enhance the development of reliable and efficient power systems, addressing critical needs in the energy sector. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. Convex Hull Pricing for Unit Commitment: Survey, Insights, and Discussions.
- Author
-
Hyder, Farhan, Yan, Bing, Bragin, Mikhail, and Luh, Peter
- Subjects
COST functions ,PRICES ,ELECTRICITY pricing ,ENERGY industries ,ELECTRICITY markets - Abstract
Energy prices are usually determined by the marginal costs obtained by solving economic dispatch problems without considering commitment costs. Hence, generating units are compensated through uplift payments. However, uplift payments may undermine market transparency as they are not publicly disclosed. Alternatively, energy prices can be obtained from the unit commitment problem which considers commitment costs. But, due to non-convexity, prices may not monotonically increase with demand. To resolve this issue, convex hull pricing has been introduced. It is defined as the slope of the convex envelope of the total cost function over the convex hull of a unit commitment (UC) problem. Although several approaches have been developed, a relevant survey has not been found to aid the understanding of convex hull pricing from the current limited literature. This paper provides a systematic survey of convex hull pricing. It reviews, compares, and links various existing approaches, focusing on the modeling and computation of convex hull prices. Furthermore, this paper explores potential areas of improvement and future challenges due to the ongoing efforts for power system decarbonization. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. Comprehensive Review of Building Energy Management Models: Grid-Interactive Efficient Building Perspective.
- Author
-
Bayasgalan, Anujin, Park, Yoo Shin, Koh, Seak Bai, and Son, Sung-Yong
- Subjects
ENERGY demand management ,ENERGY industries ,LITERATURE reviews ,SUSTAINABLE buildings ,POWER resources ,SUSTAINABLE architecture - Abstract
Energy management models for buildings have been designed primarily to reduce energy costs and improve efficiency. However, the focus has recently shifted to GEBs with a view toward balancing energy supply and demand while enhancing system flexibility and responsiveness. This paper provides a comprehensive comparative analysis of GEBs and other building energy management models, categorizing their features into internal and external dimensions. This review highlights the evolution of building models, including intelligent buildings, smart buildings, green buildings, and zero-energy buildings, and introduces eight distinct features of GEBs related to their efficient, connected, smart, and flexible aspects. The analysis is based on an extensive literature review and a detailed comparison of building models across the aforementioned features. GEBs prioritize interaction with the power grid, which distinguishes them from traditional models focusing on internal efficiency and occupant comfort. This paper also discusses the technological components and research trends associated with GEBs, providing insights into their development and potential evolution in the context of sustainable and efficient building design. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
49. AADMM based shared energy storage planning for resilience improvement of renewable energy stations.
- Author
-
Zhao, Long, Zhang, Jinping, Lv, Qingquan, Zhang, Zhenzhen, Gao, Pengfei, and Zhang, Ruixiao
- Subjects
RENEWABLE energy sources ,POWER resources ,ELECTRIC power distribution grids ,PROFIT maximization ,ENERGY industries - Abstract
The exponential proliferation of renewable energy has resulted in a significant mismatch between power supply and demand, especially during extreme events. This incongruity presents challenges in efficiently harnessing renewable energy and enhancing the resilience of the power grid. To address this issue, this paper proposes shared energy storage (SES) planning based on the adaptive alternating direction method of multipliers (AADMM). The objective is to fully leverage SES, enhance the local consumption level of renewable energy, ensure power grid resilience, and reduce operational costs. First, to ensure the effective utilization of SES while minimizing initial investment and construction costs, a planning model for SES is formulated. Secondly, to maximize the benefits for multiple prosumers within the renewable energy and SES station, a profit maximization model for multiple prosumers is established. Lastly, to guarantee the privacy security of SES and multi-prosumers while optimizing computational efficiency, a distributed computing model for SES based on AADMM is developed. The results of the example show that the proposed model can not only reduce the cost of 47.96 CNY, but also increase the power self-sufficiency rate by 21.86%. In addition, compared with the traditional distributed optimization, the number of iterations of AADMM is increased by 47.05%, and the computational efficiency is increased by 54.67%. In addition, market prices have a great impact on energy trading, and the impact of market pricing on the operation of the park is not considered in our current research. In this case, our future research aims to consider how to price reasonably between prosumers and between prosumers and SES, so as to realize the stable participation of each subject in the energy market. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
50. Leveraging the Voluntary Carbon Market to Improve Water Resilience in the Colorado and Mississippi River Basins.
- Author
-
Ecklu, John, Johnson, Alex, Landon, Tessa, and Thomas, Evan
- Subjects
CLIMATE change mitigation ,CARBON credits ,WATER management ,ENERGY industries ,WATER supply - Abstract
The Colorado and Mississippi River basins are crucial for water supply, agriculture, and ecological stability in the U.S., yet climate change, water management practices, and energy sector demands pose significant challenges to their sustainability. This paper highlights the potential of leveraging the Voluntary Carbon Market (VCM) to address these challenges by creating new revenue streams and incentivizing sustainable water management practices. It provides high-level estimates by extrapolating from existing literature. The paper finds that water projects in these basins could generate over 45 million carbon credits annually, potentially attracting around USD 4.5 billion in investments over the next decade. However, challenges such as high costs, complex regulations, and stakeholder coordination must be addressed. The paper also identifies opportunities for advancing water resiliency projects, including increasing public awareness, engaging corporations, and utilizing innovative financing mechanisms. Recommendations include promoting the VCM–water relationship, encouraging methodology innovation, developing pilot programs, investing in digital monitoring technologies, and conducting localized analysis to optimize carbon credit potential in water management. In conclusion, this paper quantifies the potential of water projects to generate carbon credits and indicates that integrating carbon markets with water management strategies can significantly contribute to global climate goals and improve water resilience in these critical regions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
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