By UIE webmaster / Published on Thu, 02/11/2010 - 17:31
The Transmission System Operator (TSO) is responsible for a stable and secure exploitation of the electricity grid in its control zone. This is mainly achieved by contracting power generators delivering ancillary services in addition to their main commercial product, active power. Electricity from Renewable Energy Sources (RES-e) is today generally exempted from the participation in ancillary services. However, the increasing share integration of variable RES-e with a limited predictability has an impact on the demand and supply structure of these services.
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By UIE webmaster / Published on Tue, 02/09/2010 - 12:40
In Europe, a common framework for renewable energy sources (RES) is aspired. Tradable green certificates (TGCs) are a marketbased cost-efficient means to stimulate electricity production from RES. Since TGCs are the most widespread support scheme in Europe together with feed-in tariffs, chances are that a common European framework could well be based on TGCs. However, while integrating currently existing different national TGC systems, any remaining differences should be carefully considered.
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By UIE webmaster / Published on Mon, 02/08/2010 - 17:07
The students enrolled in the Energy Master’s program at the K.U.Leuven are expected to study and develop a series hybrid electric go-kart during their first Master year. Their main goal is to develop control algorithms in Matlab/Simulink for the different power electronic modules present on the kart. This allows students to work in small sub-groups, each group focusing on their own specific problem. At the end of the project, the solutions found by the separate groups are combined, and integrated on the kart’s single board computer which governs the power electronic modules.
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By UIE webmaster / Published on Fri, 02/05/2010 - 15:03
In Europe, market coupling stands for a further integration of wholesale trading arrangements across country borders. More specifically, it refers to the implicit auctioning of cross-border physical transmission rights via the hourly auctions for electric energy organized by power exchanges (PEXs) one day ahead of delivery. It therefore implies that the PEXs can optimize the clearing of their day-ahead auctions. Due to verticals in the aggregated order curves, the optimal solution can be settled at different prices.
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By UIE webmaster / Published on Thu, 02/04/2010 - 12:09
The paper presents a set of control system scenarios implemented in two testbeds developed in the context of the European Project CRUTIAL - CRitical UTility InfrastructurAL Resilience. The selected scenarios refer to power control systems encompassing information and communication security of SCADA systems for grid teleoperation, impact of attacks on inter-operator communications in power emergency conditions, impact of intentional faults on the secondary and tertiary control in power grids with distributed generators.
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By admin / Published on Wed, 02/03/2010 - 16:47
This article focuses on the design of balancing markets in Europe taking into account an increasing wind power penetration. In several European countries, wind generation is so far not burdened with full balancing responsibility. However, the more wind power penetration, the less bearable for the system not to allocate balancing costs to the responsible parties. Given the variability and limited predictability of wind generation, full balancing exposure is however only feasible conditionally to well-functioning balancing markets.
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By UIE webmaster / Published on Tue, 02/02/2010 - 13:45
In order to combat global warming,a detailed knowledge of the greenhouse gas(GHG)emissions associated with different energy conversion technologies is important. For nuclear energy, GHG emissions result from different process stages of the whole fuel cycle. A life-cycle assessment offers the possibility to properly calculate these emissions. In the past, both indirect energy use and GHG emissions were studied by many researchers. Most of the studies result in low indirect emissions comparable to windturbines.
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By UIE webmaster / Published on Mon, 02/01/2010 - 19:23
From a national market perspective, taking transmission capacity into account reduces current concentration measures, although they remain fairly high even after substantial capacity increases. From an international perspective, a more efficient use of current transmission capacity by coupling regional markets can increase competition. That suggests it may not be appropriate to assess market concentration using national market shares.
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The division ELECTA is part of the Department of Electrical Engineering (ESAT)
By Hans De Keulenaer / Published on Mon, 02/01/2010 - 19:19
The division ELECTA is part of the Department of Electrical Engineering (ESAT) of the Faculty of Engineering of the K.U.Leuven. It is headed by Prof. R. Belmans, Prof. G. Deconinck, and Prof. J. Driesen.
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By UIE webmaster / Published on Mon, 02/01/2010 - 19:17
The charging of batteries of plug-in hybrid electric vehicles at home at standard outlets has an impact on the distribution grid which may require serious investments in grid expansion. The coordination of the charging gives an improvement of the grid exploitation in terms of reduced power losses and voltage deviations with respect to uncoordinated charging. The vehicles must be dispatchable to achieve the most efficient solution. As the exact forecasting of household loads is not possible, stochastic programming is introduced.
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