Papers by Christian Hewicker
KEMA is pleased to submit the attached memo on distributed generation in Europe with a specific f... more KEMA is pleased to submit the attached memo on distributed generation in Europe with a specific focus on network planning and operational impacts. This memo is an interim deliverable for the European Distributed Generation Infrastructure Study.
Zeitschrift für Energiewirtschaft, 2008
Einführung 1.1 Hintergrund und Status Quo Im Sinne einer Vereinfachung des Netzzugangs und der Öf... more Einführung 1.1 Hintergrund und Status Quo Im Sinne einer Vereinfachung des Netzzugangs und der Öffnung des Marktes für neue Anbieter hat der deutsche Gasmarkt in 2007 eine Reihe wesentlicher Veränderungen erfahren. Essentielle Neuerung war dabei die Festlegung auf ein-zumindest innerhalb definierter Marktgebietsgrenzen-kontraktpfadunabhängi-Ein Marktgebiet ist nach Kooperationsvereinbarung definiert als "eine Verknüpfung von über Netz
Handbook Utility Management, 2008
... system. Furthermore, fair balancing rules are necessary to enable en-tirely non-discriminator... more ... system. Furthermore, fair balancing rules are necessary to enable en-tirely non-discriminatory network access. This ... Germany. 2 Dr. Stefanie Kesting is Senior Consultant at KEMA Consulting GmbH, Bonn, Germany. © Springer ...
This paper describes the main findings of the work carried out on behalf of CIGRÉ Working Group C... more This paper describes the main findings of the work carried out on behalf of CIGRÉ Working Group C5-6 'Security of Supply in Wide Market Environments'. The findings are based on two questionnaires that were answered by 17 countries covering all continents. This paper provides an overview of various international practices regarding ancillary services. The paper classifies those ancillary services by the tasks they pursue, and describes the related products by means of their technical as well as their economic characteristics.
Cross-Border Balancing Study-vi-August 2013 9012-750 countries. Moreover, our analysis indicates ... more Cross-Border Balancing Study-vi-August 2013 9012-750 countries. Moreover, our analysis indicates that this measure may potentially generate substantial savings, possibly reaching up to € 12 to 24 million. At the same time, FCR represent a relatively simple product, which does not require any communication and centralised control in real time. We therefore propose to consider the establishment of a joint tendering mechanism for a single, standardised product. We furthermore believe that the design and implementation of joint tenders would be relatively straightforward. Still, some changes would be required, including in particular the following: Development of minimum product specifications, Implementation of (new) IT systems for the procurement and settlement of FCR, Adaption of the existing legal, regulatory and contractual framework. Most of these changes can probably be implemented at limited costs and efforts, provided that there is sufficient commitment not only from the side of the TSOs but also by the regulators. Similarly, our analysis has not identified any serious risks caused by the joint contracting of FCR. Cross-Border Balancing Study-vii-August 2013 9012-750 This indicates that the corresponding changes and decisions would be far from being trivial. Moreover, inadequate design decisions may lead to deteriorating regulation quality and subsequently a potential increase in the need for pre-contracted reserves. Similar to the case of FCR, the design and implementation of a common merit order will thus require strong commitment by TSOs and regulators alike. Moreover, attention will have to be paid to managing technical complexity and to deal with important technical and commercial risks. Failure to do so may otherwise result in deteriorating regulation quality and/or increasing costs. Manual frequency restoration reserves (FRR) play an important role in Belgium. In contrast, the Netherlands often have a substantial volume of manual FRR available, which are not utilised. However, our analysis shows that the potential savings that could be achieved in this area are likely to be very small. Nevertheless, it seems useful to further analyse the feasibility of exchanging balancing energy from manual FRR since this is a precondition for joint contracting at a later stage. Technically, manual FRR are a less complex product than automatic FRR. Moreover, our analysis has not identified any fundamental technical barriers towards further integration. Nevertheless, it would again be necessary to agree on certain changes, including the following: Need for product harmonisation (i.e. use of schedule-vs. directly activated reserves), Pricing of manual vs. automatic FRR, Risk of de-coupling between activation of manual FRR and system imbalance. The harmonisation of pricing principles arguably represents the most serious challenge. Unless this issue was resolved, an integrated mechanism could lead to high and unpredictable costs for Belgium, or simply not be used in practice. Similarly, the third issue may undermine incentives for selfbalancing in the Netherlands in certain situations, at least without any simultaneous changes to the pricing of imbalances. These considerations indicate that, besides changes to the procurement of balancing energy, further changes may also be required the present arrangements for imbalance settlement. In this context, it will be important to closely assess the impact of different approaches on imbalance prices and the distribution of economic welfare between the two countries. Possible risk may specifically arise due to the link between the remuneration of automatic and manual FRR in the Netherlands, and the difference between the use of pay-as-bid and marginal pricing for balancing energy. DNV KEMA Energy & Sustainability Cross-Border Balancing Study-viii-August 9012-750
IEEE Power and Energy Magazine, 2017
Uploads
Papers by Christian Hewicker