Will the Market Get it Right? The Placing of New Power Plants in Germany

This paper applies ELMOD, an economic-engineering model of the European electricity market to the issue of optimal investment placing of generation capacity in Germany under different market integration scenarios. The model is formulated as cost minimization approach. We conduct a scenario analysis comparing different rules for power plant placing in a national, a market-coupling and an integrated EU market approach. We find that there are great benefits for consumers and producers if taking into account network conditions and cross border congestion in generation location planning. Moreover a change from national planning to an integrated market planner perspective shows even more improvements in prices and network utilization.     

Development of a Network-location-model for the Economic Optimization of Local Heating Systems in Urban Chile

Cogeneration of heat and electricity is an important pillar of energy and climate policy. To plan the production and distribution system of combined heat and power (CHP) systems for residential heating, suitable methods for decision support are needed. For a comprehensive feasibility analysis, the integration of the location and capacity planning of the power plants, the choice of customers, and the network planning of the heating network into one optimization model are necessary. Thus, we develop an optimization model for electricity generation and heat supply. This mixed integer linear program (MILP) is based on graph theory for network flow problems. We apply the network location model for the optimization of district heating systems in the City of Osorno in Chile, which exhibits the “checkerboard layout” typically found in many South American cities. The network location model can support the strategic planning of investments in renewable energy projects because it permits the analysis of changing energy prices, calculation of break-even prices for heat and electricity, and estimation of greenhouse gas emission savings.     

Zur Analyse der Auswirkungen der Biomethaneinspeisung auf die Entwicklung der deutschen Erdgasversorgung

Natural gas offers several advantages compared to other fossil fuels, especially regarding its specific CO₂ emissions and its flexibility in usage. Thus, it is expected that the consumption of natural gas will further increase in the future. Nevertheless, this increase is accompanied by a growing dependence on imports. Biomethane, i.e. conditioned biogenous gas, is an interesting possibility for the substitution of natural gas. As it is a renewable and indigenous energy source, it contributes to the reduction of both: CO₂ emissions and gas imports. Similar to the renewable electricity generation, the German government sets targets for the biomethane feed-in and has introduced promotion mechanisms to achieve these goals. Within this paper the possible role of biomethane in the German natural gas supply has been evaluated by applying the optimising energy flow model PERSEUS-EEM. Results show that the CO₂ emissions trading system by itself is not sufficient for the competitiveness of biomethane. Model results demonstrate that a significant increase of the German natural gas demand can be expected especially due to the stringent CO₂ reduction targets. Even when the political CO₂-reduction targets are reached, biomethane will not play a major role in the natural gas supply of Germany.     

Multidimensionales Verfahren zur Bestimmung des Regelleistungsbedarfes unter Berücksichtigung von Unsicherheiten

One of the most crucial constraints in operation of electrical power supply systems is the permanent balance between generation and load. Reserve power is held ready to be able to keep this balance also in case of the occurrence of unpredictable events like power plant outages or inevitable deviations of power injections from their predicted values. At this, the allocation of operating reserves is in the field of conflict between level of reliability and cost effectiveness. The amount of reserve generation capacity required in a control area heavily depends on prediction quality which constitutes the need for high quality predictions. This article is about the influence of prediction quality on the amount of reserve generation capacity required in a control area. The algorithms for the assessment of required reserve generation capacity known from literature use the variation calculus technique to account for the aforementioned unpredictable events and prediction errors. In this article, an extension to a convolution-based method is presented in which the uncertainties of the predictions are expressed using intervals. Each parameter is represented by an independent dimension, assuming statistical independence among them. This allows the distinct analysis of each parameter’s influence on the amount of required reserve generation capacity. In addition, two methods for the visualization of the multi-dimensional results are presented, allowing a comprehensive analysis of the parameters’ influences. Standard distribution functions are used to represent the parameters for the simulation and the results are shown as probability density functions of possible imbalances. Based on forecasts of the development of conventional power plants and regenerative generation in the years 2020, 2030 and 2040, the required control power of the future German transmission system is calculated. Influences and dependencies are identified with the extended convolution-based method.     

Can Lignite Take a Back Seat?

Transmission grid extension is a central aspect of the future energy system transition in Germany. This stems from the diverging occurrence of renewable energy feed-in and consumption as well as the targeted nuclear and currently discussed carbon phase-outs. After realizing the retirement of the domestic nuclear energy fleet by 2022, a next policy objective could be the phase-out of domestic lignite generation. The German electricity grid was not designed to accommodate these emerging challenges. Hence, the following paper addresses the impact of decommissioning lignite power plants on the most cost-effective grid extensions by 2030. To determine the optimal transmission grid design, efficient methods for techno-economic analysis are required. The challenge of conducting an analysis of grid extensions involves lumpy investment decisions and the non-linear character of several restrictions in a real-data environment. The following paper introduces the application of the Benders Decomposition, dividing the problem into an extension and a dispatch problem to reduce the degree of computational complexity. The results show that lignite phase-out can significantly increase the number of grid extensions in Germany. All scenarios simulating a lignite phase-out by 2030 lead to higher overall system costs but lower CO\({}_{2}\) emissions.     

„Collaborative Governance“ – ein neues Konzept für die Regulierung der europäischen Strom- und Gasmärkte?

Current British and American publications about the liberalization of electricity and gas markets demand a paradigm shift in the regulation of energy networks. These publications can be subsumed under the scientific debate about “collaborative governance” in the USA. They call for an integration of network users and consumers into the regulatory process. Their philosophy resembles the philosophy of the negotiated third party access in Germany from 1998 till 2005. Their regulatory strategy might be more effective than the actual European “command and control” strategy in establishing competitive energy markets. This article examines and evaluates these publications and their regulatory strategy.     

Portfoliomanagement: Optimale Energiebeschaffung unter Berücksichtigung von Risiken

In the past, Energy Utility Companies (EUC) in Germany bought their electricity demand with a strategy that used planned sales volumes as control factor for procurement. However, this approach has the disadvantage that the open position defined as the difference between electricity sold to the customer and electricity bought at the wholesale market is not monitored. Thus, the price risk is measured incorrectly. To avoid these unnecessary risks, we propose that optimal portfolio management in liberalised energy markets should constantly monitor electricity sales volumes and electricity bought. This approach has the advantage that the open position and thus the price risk can be computed continuously and can thus be managed and monitored. However, higher data requirements have to be fulfilled when this strategy is applied. Nonetheless, the process is manageable with modern IT-systems. The main ideas in this paper can be transferred to the gas market.     

Quantifizierung und Systematisierung der technischen und verhaltensbedingten Stromeinsparpotenziale der deutschen Privathaushalte

Electricity consumption in German households accounts for more than 10 % of energy-related CO₂ emissions. In spite of substantial improvements in, for example, the efficiency of household appliances, there is still a considerable electricity savings potential to be tapped in this sector. The possible contribution that the German residential sector can make to climate protection is correspondingly large. This paper aims to structure and quantify electricity savings potentials which could be exploited in German households either through investment measures or changed user behaviour. The total theoretical potential which can be tapped through the purchase of efficient household appliances and the replacement of electrical heaters and hot water generators (i.e. by encouraging investment) amounts to approx. 90 TWh/a. This corresponds to more than 60 % of the current electricity demand of all German households. By means of changed user behaviour, approx. 30 TWh of electricity could be saved according to our calculations. These results presented in this article were reached within the scope of the TRANSPOSE interdisciplinary research project (http://www.uni-muenster.de/Transpose/, the complete analysis can be downloaded at http://www.uni-muenster.de/imperia/md/content/transpose/publikationen/buerger_working_paper_3.pdf). This project is funded within the framework of the ‘Social-ecological Research’ programme of the German Federal Ministry for Education and Research.     

Energy Costs in Germany—Developments, Drivers and International Comparison

This article summarises results a study undertaken by Frontier Economics and the EWI for the German Ministry of Economics. The study makes progress in creating transparency of energy supply prices and cost (for electricity, gas and oil products) in Germany in an international context. In Germany most retail prices have increased significantly since 1998 and are at the highest level for most customer groups and products in international comparison. Main drivers that differentiate prices internationally are, duties and taxes, network tariffs, political interference with retail prices and the degree of end customer competition. Based on this analysis the authors recommend a review of the consistency of policy measures (especially taxes, duties, levies and subsidies) with the energy policy goals of price competitiveness, security of supply and environmental sustainability. Furthermore, the authors suggest further refining network regulation, enhancing competition in the retail sector and improving transparency of price information.     

Potential für Kraftwerke mit Kohlendioxidrückhaltung aus Systemperspektive

System considerations support a discussion of selected factors influencing the economic viability of power plants with CO₂ sequestration technology (CCS, for carbon dioxide capture and storage), leading to conclusions when and how much of their potential may conceivably be realised. The CCS realisation is interconnected to investments into other technologies, to technological advances, to the price of CO₂ emission certificates, to plant dispatch, and to the prices of power. In a system of CCS potential realisation by individual actors, these variables are endogenous. This article is mainly about them. CCS is more of a long term option than a bridge technology. In contrast to other CO₂ reduction technologies, both economic operation and economic investment necessarily require high CO₂ certificate prices. An increase in power plant efficiency without CCS, switching to natural gas and power generation from renewable sources involve more mature technologies that may benefit from further application within the coming decades. Even far beyond 2020 this effect may delay and dampen the potential of CCS technology. An economic or market potential is dependent to a lesser extent on assumptions about future barriers but rather on their dynamic interactions.     

Regulierung, Effizienz und das Anreizdilemma bei Investitionen in intelligente Netze

In this paper, we survey from a theoretical point of view to what extend cost-based and incentive-based regulatory regimes stimulate investments. For the purpose of this analysis, we furthermore differentiate by different efficiency measures, i.e. allocative efficiency, productive efficiency and dynamic efficiency and analyse to what extend each efficiency measure is stimulated by the regulatory regime. Eventually, we analyse to what extend regulatory incentives for network innovation in a smart grid context exist and to what extend different forms of regulation stimulate dynamic efficiency.     

“Open access:” the ideal and the real

“Open access” would allow ISPs to use a cable operator's broadband connection under regulated terms and conditions. Advocates stress the desirability of an “end-to-end” architecture for the Internet and the danger that cable operators will use their control over the last mile to limit consumer choice and stifle innovation. Opponents contend that wholesale price controls and other regulatory burdens under what they term “forced access” would in fact slow down the deployment of broadband, stifle innovation and harm consumers. The fears of “open access” advocates seem largely speculative at this point. Evidence from related policies also favors the opponents. “Closed” cable systems are beating their “open” DSL competitors in the market place; analogous regulation of cable TV did not serve consumers well; and forced “unbundling” of local service has been controversial and largely ineffective. In addition, relevant technology stocks declined in price with political and legal victories for “open access” and increased when it suffered setbacks.     

The Survival of the Fittest,the Market Philosophy Works

In China, the cotton textile industry undertakes over 50% of the total fiber processing volume, rendering a great number of quality yarns & cloth to its downstream pipelines, such as knitting, dyeing & finishing, home-textiles and apparels industries. In 2005, the export of Chinese cotton textiles & apparels reached US$41.13 billion, import US$5.393 billion. At present, the total employment in the large-scale cotton textile enterprises is estimated for 2.512 million people, holding 26.5% of …     

Have the Soviets turned the corner on grain imports?

Soviet grain yields have averaged lower in the 1980s than they were in the 1970s, with the result that the USSR has come to play an increasingly important role in world grain markets. This article reviews Soviet grain imports since the 1960s and looks at the factors which should decide future movements in those imports. Two important factors will be Soviet domestic grain production and world grain prices. The large numbers of factors and the complexity with which they interact make definitive statements about future Soviet grain imports impossible. However, it appears most likely that in the next few years the net impact of these factors will be to lower Soviet grain import requirements.     

Non-wovens Satisfy the Textile Industry at the Beginning of 2006

The economic performance of China's non-woven industry in the first two months of 2006     

Bedeutung von CO2-Transport- und Speicheroptionen im europäischen Energiesystem

Aiming the stabilisation of the CO₂ concentration in the atmosphere at 450 ppm, a strong climate policy in the EU-27 will be required. Carbon Capture and Storage (CCS) and the building up of a CO₂ pipeline system will be one option to avoid climate change. The analysis of the potential CO₂ storage options in Europe shows a huge potential in the North Sea and their neighbouring countries and only less potentials in the southern European countries. A scenario analysis using the European energy system model TIMES PanEU shows that the installation of CO₂ transport pipelines for cross boarder exchange of CO₂ from power plants located next to the boarder could be one possible infrastructure solution. This solution is a cost efficient option which will be used mainly by the North Sea neighbouring countries (Germany, UK, the Netherlands, Denmark) and Poland. A central pipeline grid in the North Sea for the usage of huge storage options like the Utsira formation will be important in the future for countries with limited CO₂ storage capacities (like Belgium or the Netherlands). If cheap storage options like onshore Aquifers are not available, the design of central CO₂ pipeline grids has a strong impact on the power plant structure, the electricity and CO₂ certificate price. Based on a limited availability of onshore CO₂ storages the electricity price will increase by up to 16 € 2007/MWh and the CO₂-certificate price will rise by additional 35 € 2007/t CO₂ in 2050.     

Restructuring the PET World

ChinaThe consumption of MMF (Man-made fiber) in 2005 was 17.10 million tons, which amounted to 76% of the total. Among various kinds of MMF, nearly 76% of the whole consumption was taken by polyester fiber, which was 13 million tons with an annual growth rate of 16.4% during the past five years. The production capacity of PET industry performed well during the last ten years, of which the annual growth rate was nearly three times of the world average level. In 1995, the total production ca…     

Doing the right thing? HRM and the angry knowledge worker

This paper explores the relationship between human resource (HR) practices, commitment, work and employment relations. Drawing on an in‐depth ethnography of knowledge workers within a global, high‐technology, knowledge‐intensive firm, the paper offers a multidimensional understanding of structures of influence and of commitment that interact in distinctive ways to shape the employee experience. In examining the context and content of ‘best practice’ HR in a ‘celebrated’, leading‐edge company, we have offered a more complex, grounded picture of the intent and outcome of commitment‐seeking policies. The paper demonstrates that, contrary to mainstream and critical scholarship, skilled technical workers in knowledge‐intensive firms can be uncommitted, angry and high performing at the same time.     

Promoting Effective Consultation? Assessing the Impact of the ICE Regulations

Drawing on evidence from longitudinal case studies in 25 organizations, this article examines whether information and consultation (I&C) bodies established in the context of the UK's Information and Consultation of Employees Regulations 2004 have been the vehicle for effective consultation, based on objective criteria. Assessed against the regulations' default provisions that require I&C concerning strategic business issues and major organizational change, a substantial minority of participating organizations were categorized as ‘active consulters’, while a majority were ‘communicators’. The differing trajectories of I&C primarily reflected internal organizational dynamics, particularly management's approach to consultation. Beyond providing the catalyst for managerial moves to introduce I&C, the influence of the statutory framework proved largely peripheral.