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DIW Discussion Papers 1470 / 2015
This paper proposes an incentive mechanism for transmission expansion planning. The mechanism is a bilevel program. The upper level is a profit-maximizing transmission company (Transco) which expands its transmission system while endogenously predicts and influences the generation investment. The lower level is the optimal generation dispatch and investment. The Transco funds its transmission investment ...
2015| Mohammad Reza Hesamzadeh, Juan Rosellón, Steven A. Gabriel
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DIW Discussion Papers 1457 / 2015
We develop a dispatch and investment model to study the role of power storage and other flexibility options in a greenfield setting with high shares of renewables. The model captures multiple system values of power storage related to arbitrage, dispatchable capacity, and reserves. In a baseline scenario, we find that power storage requirements remain moderate up to a renewable share of around 80%, ...
2015| Alexander Zerrahn, Wolf-Peter Schill
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DIW Discussion Papers 1452 / 2015
The German support for renewable energies in the electricity sector is based on the feed-in tariff for investors that grants guaranteed revenues for their renewable energy supply. Corresponding to differences of granted tariffs and respective market values, a surcharge on consumption covers differential costs. While granted tariffs are bound to fall with advances in renewable energy technologies, the ...
2015| Thure Traber, Claudia Kemfert
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DIW Discussion Papers 1451 / 2015
We discuss the implications of two price zones, i.e. one northern and southern bidding area, on the German electricity market. In the northern zone, continuous capacity additions with low variable costs cause large regional supply surpluses in the market dispatch while conventional capacity decreases in the southern zone. As the spatial imbalance of supply and load is increasing, the current single ...
2015| Jonas Egerer, Jens Weibezahn, Hauke Hermann
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DIW Discussion Papers 1442 / 2015
We analyze future scenarios of integrating electric vehicles (EV) into the German power system, drawing on different assumptions on the charging mode. We use a numerical dispatch model with a unit-commitment formulation which minimizes dispatch costs over a full year. While the overall energy demand of the EV fleets is rather low in all scenarios, the impact on the system’s load duration curve differs ...
2015| Wolf-Peter Schill, Clemens Gerbaulet
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DIW Discussion Papers 1440 / 2014
A manufacturer contracting secretly with several downstream competitors faces an opportunism problem, preventing it from exerting its market power. In an infinitely repeated game, the opportunism problem can be relaxed. We show that the upstream firm's market power can be restored even further if the upstream firm chooses a mixed distribution system in which it makes use of an intermediary to distribute ...
2014| Isabel Teichmann, Vanessa von Schlippenbach
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DIW Discussion Papers 1434 / 2014
Many developing countries around the world apply progressive water tariffs, often structured in the form of discretely increasing block tariffs (IBTs). These tariffs have been criticized in the welfare economic literature due to their perceived inefficiency: many of the prices charged under IBTs do not correspond to marginal costs and thus violate the principle of allocative efficiency. In this paper ...
2014| Georg Meran, Christian von Hirschhausen
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DIW Discussion Papers 1426 / 2014
In this paper, we analyze the technical efficiency of CO2 reduction potentials of German power and heat plants, using a non-parametric sequential Data Envelopment Analysis. We apply a metafrontier framework to evaluate plant-level efficiencies in the transformation of inputs into desirable (energy) and undesirable (CO2 emissions) outputs, taking into account different fossil fuel generation technologies. ...
2014| Stefan Seifert, Astrid Cullmann, Christian von Hirschhausen
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DIW Discussion Papers 1418 / 2014
A shift from zonal pricing to smaller zones and nodal pricing improves efficiency and security of system operation. Resulting price changes do however also shift profits and surplus between and across generation and load. As individual actorscan lose, they might oppose any reform. We explore how free allocation of financial transmission rights to generation and load can be used to mitigate the distributional ...
2014| Friedrich Kunz, Karsten Neuhoff, Juan Rosellón
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DIW Discussion Papers 1415 / 2014
In January 2013 the interurban passenger transport market in Germany was liberalized and several coach carriers emerged offering an alternative to the Deutsche Bahn, a state owned rail monopoly. The coach carriers have attempted to position themselves not just through lower prices but also through product differentiation, for example marketing their services as the most ecological way to travel. Hence, ...
2014| Francisco J. Bahamonde-Birke, Uwe Kunert, Heike Link, Juan de Dios Ortúzar