989 resultados para Energy security


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International politics affects oil trade. But do financial and commercial traders who participate in spot oil trading also respond to changes in international politics? We construct a firm-level dataset for all U.S. oil-importing companies over 1986-2008 to examine how these firms respond to increases in "political distance" between the U.S. and her trading partners, measured by divergence in their UN General Assembly voting patterns. Consistent with previous macro evidence, we first show that individual firms diversify their oil imports politically, even after controlling for unobserved firm heterogeneity. However, the political pattern of oil imports is not entirely driven by the concerns of hold-up risks, which exist when oil transactions via term contracts are associated with backward vertical FDI that is subject to expropriation. In particular, our results indicate that even financial and commercial traders significantly reduce their oil imports from U.S. political enemies. Interestingly, while these traders diversify their oil imports politically immediately after changes in international politics, other oil companies reduce their oil imports with a significant time lag. Our findings suggest that in designing regulations to avoid harmful repercussions on commodity and financial assets, policymakers need to understand the nature of political risk.

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The Visegrad Group gained a new neighbour in the European Union on 1 July 2013. Given the geographic proximity, similar level of development and a number of shared interests, Croatia could become a valuable partner in Central European regional co-operation. Co-operation in the “V4+” format is possible in most of the Visegrad Group’s priorities, primarily in: energy security, transport, neighbourhood policy and EU enlargement. V4 could be attractive for Croatia as a grouping which forms broader coalitions within the EU and is helpful in solving regional problems. However, making use of this potential in practice will depend on the determination to enhance co-operation, and its success may be thwarted by temporary bilateral issues.

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Despite their initial interest in shale gas exploration, over the past year Bulgaria, the Czech Republic and Romania have become increasingly sceptical about the development of unconventional gas resources. In January of this year Bulgaria introduced an indefinite ban on the exploration and production of shale gas and Romania followed suit in May by introducing a six-month moratorium on exploration work, which it plans to extend by another two years following the country’s parliamentary elections scheduled for December. Similar measures are being planned by the government in Prague. The aim of this report is to explore the reasons why countries which claim to want to improve their energy security have been showing increasing scepticism towards shale gas.

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On June 17, 2011, the Center for Transatlantic Relations – together with the Center for European Policy Analysis, the Polish Institute of International Affairs in Warsaw, and the Embassies of Hungary and Poland – hosted authors writing on the theme “A Strong Europe in a Globalized World,” and who offered in-depth, substantive reflections about how the United States and Europe can work together more closely in meeting global challenges. Drawing on the agendas of the outgoing and incoming EU Presidencies of the Council of the European Union – Hungary and Poland respectively – authors focused on the importance of a strong US-EU partnership in the face of mounting global challenges, from the current financial and economic crisis through the insecurities of energy markets and the promise of the Arab Spring. Authors explored in depth four key areas of shared interests: A Global Perspective (Transatlantic Partnership in a Globalized World); Achievements and Deliverables of Eastern Partnership; Euro-Atlantic Perspectives for the Balkans; and Common Challenges of Energy Security. Senior Hungarian and Polish government officials, subject matter experts, private sector actors, and think tank scholars participated.

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Before Russia began its aggression against Ukraine, including the annexation of Crimea, Lithuania, Latvia and Estonia had felt a higher level of security due to their membership in NATO and the EU. This has now changed. The authorities of these states claim that Russia has been pursuing an aggressive policy towards them for a long time, using various instruments of pressure. They claim that Russia is now able to organise acts of sabotage against them in several areas and that these could threaten both their internal stability and the territorial integrity of the region. The Baltic states’ reaction to the threat from Russia has demonstrated that the level of cooperation between them is low. It has also revealed certain weaknesses in several areas of how these states function, which Moscow may be willing to use for its own purposes. Paradoxically, this has created a chance for the Baltic states’ governments to take measures which in different political circumstances would meet with resistance from society, such as strengthening the military sector and the level of energy security.

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In 2009 the European Union (EU) reached a crucial moment in its history, in which the terms Europe and crisis became conjoined: the European sovereign-debt crisis, or Euro-crisis. Yet enlargement remains on the agenda, with the EU’s next enlargement starting on 1st July 2013 with the accession of Croatia, Iceland and FYROM looking set to follow in the near future, and probably other Western Balkan states and possibly Turkey in the long term. Enlargement therefore will soon come back into focus. Focusing on climate and energy security policy, this working paper first reflects upon the impact of the 2004/2007 enlargement on the EU. A reflection on the EU’s recent past with some of the lessons that can be learnt then follows, with a consideration that predictions of decision- and policy-making gridlock were not realised, that newer member states have proved influential, and that prospective member states cannot be expected to be passive nor impotent. The latter part of this paper evaluates the potential prospects and outcomes of these lessons with regard to future enlargement from within (Scotland and Catalonia), and without (Turkey), and the political factors which may dictate whether these possible enlargements are realised.

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Despite the hopes raised by the most recent Treaties, the Lisbon Treaty in particular, the European Union has been unable to strengthen, let alone develop its role on the international stage. A couple of weeks away from the European Parliament elections, we need to ask ourselves what can reasonably be done by the upcoming Parliament to ensure that significant progress is made with respect to the EU’s foreign policy. Some of this progress could result from the implementation of the European Security Strategy or originate from the role and initiatives of the High Representative/Vice-president of the Commission. In addition, rethinking specific approaches could allow for significant improvements in key areas such as the EU’s dealings with neighbouring countries, its commercial relationship with the US, its energy security or its common security and defence policy.

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“A first assessment is that this would not work”, EC Vice-President in charge of Energy Union Mr. Maros Sefcovic said in an interview with The Wall Street Journal at the World Economic Forum in Davos on the 22nd of January. He was commenting on the recent announcement by President Vladimir Putin and Gazprom’s Alexei Miller. Indeed, the Russian gas giant’s CEO announced that South Stream would be replaced by a new project, Turkish Stream, linking Russia to the European part of Turkey and this in addition to the existing 16 billion cubic meters (bcm) Blue stream. This policy brief looks at the various implications this new reality could have for Europe’s energy security.

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In its Communication on an Energy Union published in February 2015, the European Commission committed itself to “explore the full potential of liquefied natural gas (LNG), including as a back-up in crisis situations when insufficient gas is coming into Europe through the existing pipeline system” and to address the potential of gas storage in Europe by developing a comprehensive LNG and storage strategy by the end of 2015 or early in 2016. This is a comprehensible move in the current context. Geopolitical tensions between the EU and Russia explain the EU’s willingness to further diversify its supply sources of natural gas to reinforce its long-term energy security on the one hand, and to strengthen its ability to solve future crises on the other hand. Moreover, the current market dynamics could support diversification towards LNG. Increasing the flexibility of LNG trade, decreasing LNG prices and LNG charter rates and an apparent price convergence between the European and the Asia-Pacific LNG imports would all reinforce the economic viability of such a strategy. This Policy Brief makes three main points: • For the LNG and gas storage strategy to work, it needs to be embedded in the realities of the natural gas market. • The key to a successful LNG strategy is to develop sufficient infrastructure. • The LNG strategy needs an innovation component.

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Proposals to interconnect the existing gas infrastructure of ASEAN states by a Trans-ASEAN Gas Pipeline carry potential for increased economic development, efficiency and improved energy security in South East Asia - plans to expand the Trans-ASEAN Gas Pipeline to remote hydrocarbon deposits in the South China Sea is subject to contradicting claims of sovereignty by several nations - recent developments in the relationship between ASEAN and China indicate that an interim arrangement is possible, holding great potential to be economically, socially and politically beneficial to the entire region.

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The topic of bioenergy, biofuels and bioproducts remains at the top of the current political and research agenda. Identification of the optimum processing routes for biomass, in terms of efficiency, cost, environment and socio-economics is vital as concern grows over the remaining fossil fuel resources, climate change and energy security. It is known that the only renewable way of producing conventional hydrocarbon fuels and organic chemicals is from biomass, but the problem remains of identifying the best product mix and the most efficient way of processing biomass to products. The aim is to move Europe towards a biobased economy and it is widely accepted that biorefineries are key to this development. A methodology was required for the generation and evaluation of biorefinery process chains for converting biomass into one or more valuable products that properly considers performance, cost, environment, socio-economics and other factors that influence the commercial viability of a process. In this thesis a methodology to achieve this objective is described. The completed methodology includes process chain generation, process modelling and subsequent analysis and comparison of results in order to evaluate alternative process routes. A modular structure was chosen to allow greater flexibility and allowing the user to generate a large number of different biorefinery configurations The significance of the approach is that the methodology is defined and is thus rigorous and consistent and may be readily re-examined if circumstances change. There was the requirement for consistency in structure and use, particularly for multiple analyses. It was important that analyses could be quickly and easily carried out to consider, for example, different scales, configurations and product portfolios and so that previous outcomes could be readily reconsidered. The result of the completed methodology is the identification of the most promising biorefinery chains from those considered as part of the European Biosynergy Project.

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This thesis examined solar thermal collectors for use in alternative hybrid solar-biomass power plant applications in Gujarat, India. Following a preliminary review, the cost-effective selection and design of the solar thermal field were identified as critical factors underlying the success of hybrid plants. Consequently, the existing solar thermal technologies were reviewed and ranked for use in India by means of a multi-criteria decision-making method, the Analytical Hierarchy Process (AHP). Informed by the outcome of the AHP, the thesis went on to pursue the Linear Fresnel Reflector (LFR), the design of which was optimised with the help of ray-tracing. To further enhance collector performance, LFR concepts incorporating novel mirror spacing and drive mechanisms were evaluated. Subsequently, a new variant, termed the Elevation Linear Fresnel Reflector (ELFR) was designed, constructed and tested at Aston University, UK, therefore allowing theoretical models for the performance of a solar thermal field to be verified. Based on the resulting characteristics of the LFR, and data gathered for the other hybrid system components, models of hybrid LFR- and ELFR-biomass power plants were developed and analysed in TRNSYS®. The techno-economic and environmental consequences of varying the size of the solar field in relation to the total plant capacity were modelled for a series of case studies to evaluate different applications: tri-generation (electricity, ice and heat), electricity-only generation, and process heat. The case studies also encompassed varying site locations, capacities, operational conditions and financial situations. In the case of a hybrid tri-generation plant in Gujarat, it was recommended to use an LFR solar thermal field of 14,000 m2 aperture with a 3 tonne biomass boiler, generating 815 MWh per annum of electricity for nearby villages and 12,450 tonnes of ice per annum for local fisheries and food industries. However, at the expense of a 0.3 ¢/kWh increase in levelised energy costs, the ELFR increased saving of biomass (100 t/a) and land (9 ha/a). For solar thermal applications in areas with high land cost, the ELFR reduced levelised energy costs. It was determined that off-grid hybrid plants for tri-generation were the most feasible application in India. Whereas biomass-only plants were found to be more economically viable, it was concluded that hybrid systems will soon become cost competitive and can considerably improve current energy security and biomass supply chain issues in India.

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Purpose: Energy security is a major concern for India and many rural areas remain un-electrified. Thus, innovations in sustainable technologies to provide energy services are required. Biomass and solar energy in particular are resources that are widely available and underutilised in India. This paper aims to provide an overview of a methodology that was developed for designing and assessing the feasibility of a hybrid solar-biomass power plant in Gujarat. Design/methodology/approach: The methodology described is a combination of engineering and business management studies used to evaluate and design solar thermal collectors for specific applications and locations. For the scenario of a hybrid plant, the methodology involved: the analytical hierarchy process, for solar thermal technology selection; a cost-exergy approach, for design optimisation; quality function deployment, for designing and evaluating a novel collector - termed the elevation linear Fresnel reflector (ELFR); and case study simulations, for analysing alternative hybrid plant configurations. Findings: The paper recommended that for a hybrid plant in Gujarat, a linear Fresnel reflector of 14,000 m2 aperture is integrated with a 3 tonne per hour biomass boiler, generating 815 MWh per annum of electricity for nearby villages and 12,450 tonnes of ice per annum for local fisheries and food industries. However, at the expense of a 0.3 ¢/kWh increase in levelised energy costs, the ELFR can increase savings of biomass (100 t/a) and land (9 ha/a). Research limitations/implications: The research reviewed in this paper is primarily theoretical and further work will need to be undertaken to specify plant details such as piping layout, pump sizing and structure, and assess plant performance during real operational conditions. Originality/value: The paper considers the methodology adopted proved to be a powerful tool for integrating technology selection, optimisation, design and evaluation and promotes interdisciplinary methods for improving sustainable engineering design and energy management. © Emerald Group Publishing Limited.

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The quest for energy security and widespread acceptance of the anthropogenic origin of rising CO2 emissions and associated climate change from combusting fossil derived carbon sources, is driving academic and commercial research into new routes to sustainable fuels to meet the demands of a rapidly rising global population. Biodiesel is one of the most readily implemented and low cost, alternative source of transportation fuels to meet future societal demands. However, current practises to produce biodiesel via transesterification employing homogeneous acids and bases result in costly fuel purification processes and undesired pollution. Life-cycle calculations on biodiesel synthesis from soybean feedstock show that the single most energy intensive step is the catalytic conversion of TAGs into biodiesel, accounting for 87% of the total primary energy input, which largely arises from the quench and separation steps. The development of solid acid and base catalysts that respectively remove undesired free fatty acid (FFA) impurities, and transform naturally occurring triglycerides found within plant oils into clean biodiesel would be desirable to improve process efficiency. However, the microporous nature of many conventional catalysts limits their ability to convert bulky and viscous feeds typical of plant or algal oils. Here we describe how improved catalyst performance, and overall process efficiency can result from a combination of new synthetic materials based upon templated solid acids and bases with hierarchical structures, tailored surface properties and use of intensified process allowing continuous operation.

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Being heavily energy dependent, it is not much of a surprise that Europe pays special attention to reducing the use of fossil fuels. Each one of the ten new member states is characterized by relatively low per capita energy consumption and relatively low energy efficiency, and the share of renewables in their energy mix tends to be low, too. The paper examines the problem when policy measures create a decrease in environmental capital instead of an increase. In this case it hardly seems justified to talk about environmental protection. The authors describe a case of a Hungarian rapeseed oil mill which would not be of too much interest on its own but given that almost all similar plants went bankrupt, there are some important lessons to learn from its survival. The enterprise the authors examined aimed at establishing a micro-regional network. They completed a brown-field development to establish a small plant on the premises of a former large agricultural cooperative. By partnering with the former employees and suppliers of the sometime cooperative, they enjoyed some benefits which all the other green-field businesses focusing on fuel production could not. The project improved food security, energy security and population retention as well.