TRANSPORT PRICING OF ELECTRICITY NETWORKS Transport Pricing of Electricity Networks by Fran~ois Leveque Ecole des Mines de Paris, France Springer-Science+Business Media, B.V A C.I.P. Catalogue record for this book is available from the Library of Congress. ISBN 978-1-4419-5355-1 ISBN 978-1-4757-3756-1 (eBook) DOI 10.1007/978-1-4757-3756-1 Printed on acid-free paper All Rights Reserved © 2003 Springer Science+Business Media Dordrecht Originally published by Kluwer Academic Publishers, Boston in 2003 . Softcover reprint of the hardcover 1s t edition 2003 No part of this work may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording or otherwise, without written permission from the Publisher, with the exception of any material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Contents Contributing Authors Xl Preface by Jean Syrota xv General Introduction by Fran90is Leveque XVll Part I: Economic tariff-setting, law and accounting 1 Chapter 1: Legal constraints and economic principles 3 FRANCOIS LEVEQUE Chapter 2: Cost calculation 35 NICOLAS CURIEN Chapter 3: Cost allocation methods 73 NICOLAS CURIEN Part II: Basic theory 103 Chapter 4: Cost recovery and short-run efficiency 105 CLAUDE CRAMPES Chapter 5: Cost recovery and the efficient development of the grid 137 RICHARD GREEN vi Transport pricing of electricity networks Chapter 6: Tariffs and Imperfect Competition 155 ANNE PERROT Part III: Implementation issues 173 Chapter 7: Guidelines on tariff setting 175 IGNACIO J. PEREZ-ARRIAGA AND YVES SMEERS Chapter 8: Features of transmission tariffs in Europe 205 JEAN-MICHEL GLACHANT Acknowledgements 225 Index 227 List of Figures Figure 1-1. Uniform pricing discrimination 17 Figure 1-2. Perfect discrimination 17 Figure 1-3. Imperfect, third order discrimination 19 Figure 1-4. Two-part tariff discrimination 20 Figure 1-5. N on discrimination for a meshed network 24 Figure 2-1. Interconnection pricing example 38 Figure 2-2. Universal service funding example 41 Figure 2-3. Economies of scales 53 Figure 2-4. Fully distributed costs 61 Figure 3-1. From Shapley to Aumann 82 Figure 3-2. Supportability and non-supportability 85 Figure 4-1. One line network 110 Figure 4-2. Three-line network 110 Figure 4-3. Out-of-merit-order optimal dispatch 112 Figure 4-4. No capacity constraint, same valuation at both nodes 124 Figure 4-5. Binding transport capacity, nodal marginal valuations of energy diverge 124 Figure 4-6. Optimal allocation with energy losses 125 Figure 5-1. Willingness to pay for transmission capacity in a two- node network 139 Figure 5-2. Optimal level of transmission in a loss-less network 140 Figure 5-3. A detrimental grid expansion 151 Figure 8-1. Comparison of EHV and HV tariffs for the same type of consumer 213 Figure 8-2. Comparison of three types of consumer: A, B, and C 215 Figure 8-3. Tariff comparison for three types of consumer 216 List of Tables Table 8-1. Cost components of transmission tariffs 207 Table 8-2. Main characteristics of the transmission pricing principles in Europe 209 Table 8-3. Split of charges paid by generators and consumers 211 Table 8-4. Breakdown of tariff 'B' for EHV grid 212 Table 8-5. Correlation analysis 219 Table 8-6. Accounting procedures 220 Table 8-7. Cost of network assets 220 Table 8-8. Structure of transmission charges 221 Table 8-9. Transmission tariff levels 222 Table 8-10. Electricity distribution tariffs: medium voltage network 223 Contributing Authors Jose Ignacio Perez-Arriaga, professor of electric engineering Instituto de Investigacion Tecnologica (IIT), Universidad Pontificia Comillas Alberto Aguilera 23,28015 Madrid, Spain Tel.: +3491 5406157/5422800 -Fax: +34 91 54231 76- [email protected] Born in Madrid, Spain (1948). Electrical Engineer from Comillas University, PhD and Master of Science in Electrical Engineering from the Massachusetts Institute of Technology (MIT). Founder and Director (1984- 1995) of the Institute of Technological Research (IIT) at Comillas University, where he is a professor at the Engineering School and has also been Vice-rector for Research. Commissioner at the Spanish Energy Regulatory Commission (1995-2000). Member of the Spanish Academy of Engineering. Jose Ignacio Perez-Arriaga has lectured and consulted for companies and institutions in more than 20 countries. Current areas of interest: operation, control, planning and regulation of electric power systems. Claude Crampes, professor of economics Universite de Toulouse, IDEI and Gremaq Manufacture des Tabacs, 21, allee de Brienne, Bat. F., 31000 Toulouse, France Tel: +33 (0)5 61 128602 -Fax: +33 (0)5 61 128637 [email protected] xu Transport pricing of electricity networks Claude Crampes is professor of economics at the Universite des Sciences Sociales de Toulouse and research director at the Institut D'Economie Industrielle (IDEI). He is a specialist of Industrial Organisation, with a special interest in the Economics of Networks and the Economics of Energy. His research results are published in Annales d'Economie et de Statistique, Annales des Telecommunications, Economica, European Economic Review, International Journal ofI ndustrial Organization, Journal of Consumer Policy, Journal of Regulatory Economics, Rand Journal of Economics, Revue Economique, Revue Internationale de Droit Economique, Revista Espanola de Economia, Utilities Policy. Nicolas Curien, professor of economics CNAM, Departement Economie et gestion 2 rue Conte, 75003 Paris, France Tel.: +33 (0)1 4027 2332 [email protected] Nicolas Curien is professor of economics at the Conservatoire national des arts et metiers, in Paris. He also teaches at the Ecole Poly technique. His research and teaching interests are in the fields of market organisation and regulation in network industries, especially as concerns telecommunications. During the past twenty years, he has published several books and a number of academic papers on networks economics. He is a member of the French Academy of Technologies and a member of the French High Commission for the Postal and Telecommunications public Utilities (CSSPPT). Jean-Michel Glachant, professor of economics Universite de Paris XI, Centre de recherche ADIS 54 bd Desgranges, Sceaux 92331 Cedex, France Tel: +33 6 80 63 79 93 - Fax: +33 I 4543 39 89 - [email protected] Jean-Michel Glachant is pennanent professor and Head of the Department of Economics at the University of Paris XI, as well as head of the "Electricity Group Jean Monnet" at the ADIS research center. He recently edited "Competition in European Electricity Markets: A Cross Country Comparison" (Edward Elgar, 2003), "The Economics of Contracts. Theory and Applications" (Cambridge University Press, 2002), "Les reformes de l'industrie electrique en Europe" (Commissariat General du Plan, France, 2000). He took part in the research "Indicators ofI nternal