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Registros recuperados: 16
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A Global Model for Agriculture and Bioenergy: Application to Biofuel and Food Security in Peru and Tanzania AgEcon
Elbehri, Aziz; McDougall, Robert; Horridge, Mark.
This paper describes a global model for agriculture and bioenergy (GLOMAB) that incorporates biomass, biofuels and bioelectricity sectors into the GTAP-Energy model by expanding the global GTAP database, production and consumption structures. Biofuels are separated between first- generation (sugar ethanol, starch ethanol) and second- generation (cellulosic ethanol) biofuels and associated biomass feedstocks (maize, sugar cane, crop residues, woody biomass). Beside biofuels, the model also incorporates bioelectricity (as separate form conventional electricity) which competes for the same biomass feedstocks with cellulosic ethanol sector (agricultural residues, woody biomass). With this broad-based representation of the bioenergy system likely to prevail...
Tipo: Conference Paper or Presentation Palavras-chave: Biofuels; Renewable Energy; Biomass; Agricultural Markets; Computable General Equilibrium (CGE); Food Security and Poverty; Resource /Energy Economics and Policy; C68; Q18; Q42; R14.
Ano: 2009 URL: http://purl.umn.edu/51914
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Application of Urine as Fuel in a Soil-based Membrane-less Single Chamber Microbial Fuel Cell CIGR Journal
Simeon, Meshack Imologie; Otache., Matins Yusuf; Ewemojie, Temitayo Abayomi; RAJI, AbdulGaniy Olayinka.
Microbial fuel cell (MFC) technology is a promising bio-technology that utilizes the microorganism in organic wastes to generate electricity. Although human urine has been identified as a suitable substrate in MFCs, its possible utilization in a soil-based Membrane-less Single Chamber Microbial Fuel Cell (MSCMFC) for constant power generation has, hitherto, not been reported. In this study, a MFC was set up with mud as inoculums in a plastic cylindrical vessel using carbon felt electrodes. It was operated for 19 days (456 hours) without extra substrate. Then, the MFC was treated with human urine (as substrate) four times (Days 19, 24, 32 and 36) each time the MFC output stabilized across external loads. A control MFC (MFCcontrol) was made the same way and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Renewable Energy; Microbial Fuel Cell Technology Soil; Urine; Microorganism; Power; Fuel Cell.
Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4808
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Assessing China’s Energy Conservation and Carbon Intensity: How Will the Future Differ from the Past? AgEcon
Zhang, ZhongXiang.
As an important step towards building a “harmonious society” through “scientific development”, China has incorporated for the first time in its five-year economic plan an energy input indicator as a constraint. While it achieved a quadrupling of its GDP while cutting its energy intensity by about three quarters between 1980 and 2000, China has had limited success in achieving its own 20% energy-saving goal set for 2010 to date. Despite this great challenge at home, just prior to the Copenhagen climate summit, China pledged to cut its carbon intensity by 40-45% by 2020 relative its 2005 levels to help to reach an international climate change agreement at Copenhagen or beyond. This raises the issue of whether such a pledge is ambitious or just represents...
Tipo: Working or Discussion Paper Palavras-chave: Energy Saving; Renewable Energy; Carbon Intensity; Post-Copenhagen Climate Negotiations; Climate Commitments; China; Environmental Economics and Policy; Q42; Q43; Q48; Q52; Q53; Q54; Q58.
Ano: 2010 URL: http://purl.umn.edu/92837
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Bush Meets Hotelling: Effects of Improved Renewable Energy Technology on Greenhouse Gas Emissions AgEcon
Hoel, Michael.
Replaced with revised version of paper 02/20/09.
Tipo: Working or Discussion Paper Palavras-chave: Climate Change; Exhaustible Resources; Renewable Energy; Resource /Energy Economics and Policy; Environmental Economics and Policy; Q30; Q42; Q5.
Ano: 2009 URL: http://purl.umn.edu/47175
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China in the Transition to a Low-Carbon Economy AgEcon
Zhang, ZhongXiang.
China, from its own perspective cannot afford to, and from an international perspective, is not allowed to continue on the conventional path of encouraging economic growth at the expense of the environment. The country needs to transform its economy to effectively address concern about a range of environmental problems from burning fossil fuels and steeply rising oil import and international pressure to exhibit greater ambition in fighting global climate change. This paper first discusses China’s own efforts towards energy saving and pollutants cutting, the widespread use of renewable energy and participation in clean development mechanism, and puts carbon reductions of China’s unilateral actions into perspective. Given that transition to a low carbon...
Tipo: Working or Discussion Paper Palavras-chave: Energy Saving; Renewable Energy; Clean Development Mechanism; Nuclear Power; Power Generation; Oil and Gas; Post-Copenhagen Climate Negotiations; China; Resource /Energy Economics and Policy; Q42; Q48; Q52; Q54; Q58.
Ano: 2010 URL: http://purl.umn.edu/91009
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Combining Climate and Energy Policies: Synergies or Antagonism? Modeling interactions with energy efficiency instruments AgEcon
Lecuyer, Oskar; Bibas, Ruben.
In addition to the already present Climate and Energy package, the European Union (EU) plans to include a binding target to reduce energy consumption. We analyze the rationales the EU invokes to justify such an overlapping and develop a minimal common framework to study interactions arising from the combination of instruments reducing emissions, promoting renewable energy (RE) production and reducing energy demand through energy efficiency (EE) investments. We find that although all instruments tend to reduce emissions and a price on carbon tends to give the right incentives for RE and EE too, the combination of more than one instrument leads to significant antagonisms regarding major objectives of the policy package. The model allows to show in a single...
Tipo: Working Paper Palavras-chave: Renewable Energy; Energy Efficiency; Energy Policy; Climate Policy; Policy Interaction; Resource /Energy Economics and Policy; Q28; Q41; Q48; Q58.
Ano: 2011 URL: http://purl.umn.edu/120049
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Environmental Regulations, Market Structure and Technological Progress in Renewable Energy Technology — A Panel Data Study on Wind Turbines AgEcon
Rubbelke, Dirk T.G.; Weiss, Pia.
We study the impact of environmental regulations on the patent activities for wind turbines between 1980 and 2008. We explicitly control for energy market liberalisation and take a potential interaction between liberalisation and policy instruments into account. We find a strong and highly significant effect of environmental tax revenues, which we regard as a proxy for the extent to which energy prices changed in favour of renewable energies, as well as foreign demand for wind turbines on innovation activities. In addition, we find that price-based policy instruments are more effective in fostering innovations in the wind turbine technology when energy markets are fully open to competition. In contrast, non-price-based policy instruments such as grants or...
Tipo: Working or Discussion Paper Palavras-chave: Environmental Policy; Renewable Energy; Market Structure; Wind Turbines; Innovation; Patents; Technological Change; Resource /Energy Economics and Policy; Q55; Q58; O34; O38.
Ano: 2011 URL: http://purl.umn.edu/102569
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FARM BILL STAKEHOLDERS: COMPETITORS OR COLLABORATORS? AgEcon
Outlaw, Joe L.; Richardson, James W.; Klose, Steven L..
Tipo: Journal Article Palavras-chave: Farm Bill; Policy; Deficit; Nutrition; Renewable Energy; Agricultural and Food Policy; Q10; Q18.
Ano: 2011 URL: http://purl.umn.edu/109481
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Feasibility of biohydrogen production from industrial wastes using defined microbial co-culture Biol. Res.
Chen,Peng; Wang,Yuxia; Yan,Lei; Wang,Yiqing; Li,Suyue; Yan,Xiaojuan; Wang,Ningbo; Liang,Ning; Li,Hongyu.
BACKGROUND: The development of clean or novel alternative energy has become a global trend that will shape the future of energy. In the present study, 3 microbial strains with different oxygen requirements, including Clostridium acetobutylicum ATCC 824, Enterobacter cloacae ATCC 13047 and Kluyveromyces marxianus 15D, were used to construct a hydrogen production system that was composed of a mixed aerobic-facultative anaerobic-anaerobic consortium. The effects of metal ions, organic acids and carbohydrate substrates on this system were analyzed and compared using electrochemical and kinetic assays. It was then tested using small-scale experiments to evaluate its ability to convert starch in 5 L of organic wastewater into hydrogen. For the one-step...
Tipo: Journal article Palavras-chave: Renewable Energy; Biohydrogen; Microbial consortium; Hydrogen.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100024
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Generation of Photovoltaic Solar Energy. Evaluation of the Demand Curve with the Insert of Grid-connected Photovoltaic Power System at CINDACTA II, Curitiba-PR, Brazil. BABT
Ribeiro,Rosiane Bonatti; Silva,Ramon Bulhões e; Frigotto,Rodrigo Luiz; Urbanetz Junior,Jair.
ABSTRACT Unlike some countries, Brazil has a predominantly hydraulic energy matrix, a clean and renewable source. But, in recent years, both the non-renewal of the normal volumes of water in the reservoirs and the lack of consciousness in the consumption of water and energy have placed the country in a critical state of energy supply leading to many intensive policies to reduce its consumption. In contrast, energy from Photovoltaic (PV) on-Grid Systems has grown dramatically in recent years. In this sense, this study presents an analysis of the contribution of the energy generated by a PV on-Grid Systems to be installed in CINDACTA II, in order to make re-contracting a lower demand possible and also reduce electric energy consumption and its cost.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Photovoltaic System; Demand; Renewable Energy; Save Energy.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000200232
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Geographical Analysis of US Green Sector Industry Concentration AgEcon
Register, D. Lane; Lambert, Dayton M.; English, Burton C.; Jensen, Kimberly L.; Menard, R. Jamey; Wilcox, Michael D..
This paper analyzes the geographic distribution of “green energy” sector clustering in the lower 48 United States using recent developments in industry concentration analysis. Evidence suggests that the ten green energy subsectors and the aggregate of the firms comprising the green energy sector are regionally concentrated. Positive changes in industry concentration from 2002 to 2006 tended to be greatest in non-metropolitan counties, suggesting comparative advantage with respect to site location for the composite of firms making up these sectors.
Tipo: Presentation Palavras-chave: Agglomeration; Location Quotient; Renewable Energy; Community/Rural/Urban Development; Industrial Organization; Research and Development/Tech Change/Emerging Technologies.
Ano: 2012 URL: http://purl.umn.edu/119742
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In What Format and under What Timeframe Would China Take on Climate Commitments? A Roadmap to 2050 AgEcon
Zhang, ZhongXiang.
In what format and under what timeframe China would take on climate commitments is of significant relevance to China because it is facing great pressure both inside and outside international climate negotiations to exhibit greater ambition and is being confronted with the threats of trade measures. It is of significant global relevance as well because when China’s emissions peak is crucial to determine when global emissions would peak and because what China is going to do in what format has significant implications for the level and ambition of commitments from other countries. In response to these concerns and to put China in a positive position, this paper maps out the roadmap for China’s specific climate commitments towards 2050. Taking many factors...
Tipo: Working or Discussion Paper Palavras-chave: Carbon Intensity Target; Binding Emissions Caps; Post-Copenhagen Climate Negotiations; Energy Saving; Renewable Energy; Clean Development Mechanism; China; USA; India; Environmental Economics and Policy; Q42; Q48; Q52; Q54; Q58.
Ano: 2010 URL: http://purl.umn.edu/94843
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Is It Fair to Treat China as a Christmas Tree to Hang Everybody’s Complaints? Putting its Own Energy Saving into Perspective AgEcon
ZhongXiang, Zhang.
China had been the world’s second largest carbon emitter for years. However, recent studies show that China had overtaken the U.S. as the world’s largest emitter in 2007. This has put China on the spotlight, just at a time when the world community starts negotiating a post-Kyoto climate regime under the Bali roadmap. China seems to become such a Christmas tree on which everybody can hang his/her complaints. This paper first discusses whether such a critics is fair by examining China’s own efforts towards energy saving, the widespread use of renewable energy and participation in clean development mechanism. Next, the paper puts carbon reductions of China’s unilateral actions into perspective by examining whether the estimated greenhouse gas emission...
Tipo: Working or Discussion Paper Palavras-chave: Energy Saving; Renewable Energy; Post-Kyoto Climate Negotiations; Clean Development Mechanism; China; USA; Environmental Economics and Policy; Q42; Q48; Q53; Q54; Q58.
Ano: 2009 URL: http://purl.umn.edu/52341
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Land-use Change and Solar Energy Production: A Real Option Approach AgEcon
Ardjan, Gazheli; Di Corato, Luca.
In this paper a real option model is developed to examine the critical factors affecting the decision to lease agricultural land to a company installing a PV power plant. The leasing payment is certain while the net revenues from agriculture are uncertain. We identify the profit values at which the farmer decides to lease his plot vs. continue farming it. By applying the model to the province of Bologna (Italy), we illustrate the possible land-use change scenarios in this area. We conclude by discussing the importance of PV energy production as a source of income for farmers and its implications from a social perspective.
Tipo: Working Paper Palavras-chave: Land Allocation; Real Options; Renewable Energy; Solar farm; Uncertainty; Resource /Energy Economics and Policy; C61; D81; Q24; Q42.
Ano: 2011 URL: http://purl.umn.edu/120041
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Solar Energy for Residential Use and Its Contribution to the Energy Matrix of the State of Paraná BABT
Garcia,Gabriela; Nogueira,Eliel Ferreira; Betini,Roberto Cesar.
ABSTRACT The present study evaluates the economic viability of the application of solar energy for electric power generation via the use of photovoltaic systems in a residential consumption unit in the city of Curitiba. Since the energy from the sun is abundant, clean, renewable and has the potential to compete in productivity and profitability, the evaluation of the applicability of these systems in homes, not only in industrial parks, is of great interest. A household with the determined consumption profile was chosen for this case study through simulations with the HomerPro software. After analyzing the data, the photovoltaic potential of the State of Paraná was estimated to investigate the possibility of photovoltaic generation growth in the state...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Photovoltaic Systems; Solar Energy; Renewable Energy; Photovoltaic Power Generation.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000200211
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The Economy-wide Greenhouse Gas Impacts of the Biofuels Boom (or Bust) AgEcon
Birur, Dileep K.; Golub, Alla A.; Hertel, Thomas W.; Rose, Steven K..
Several studies in the recent past have offered a contrasting and wide range of perspectives on economic and environmental implications of biofuels. In this study we develop a comprehensive and consistent framework for analyzing the global economic interactions and the direct and indirect impacts of biofuels production on greenhouse gas (GHG) emissions. We utilize a global Computable General Equilibrium (CGE) model which consists of interaction of energy commodities with explicit biofuels and their by-product sectors, land endowment classified by agro-ecological zones, and emission of four major GHGs - carbon dioxide, methane, nitrous oxide, fluorinated gases from agricultural and economic activities, including emissions associated with biofuel feedstock,...
Tipo: Conference Paper or Presentation Palavras-chave: Biofuels; Renewable Energy; Computable General Equilibrium (CGE); Agro Ecological Zones (AEZs); Land use change; Greenhouse Gas Emission.; Environmental Economics and Policy; International Relations/Trade; Land Economics/Use; Resource /Energy Economics and Policy; C68; Q18; Q42; R14.
Ano: 2009 URL: http://purl.umn.edu/49473
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