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Capacity commitment and price volatility in a competitive electricity market

  • Tishler, Asher
  • Milstein, Irena
  • Woo, Chi-Keung

The long lead time required to add new capacity in the electricity generation industry means that daily demands are necessarily served by capacity already installed. However, in a competitive market, even if the installed capacity was designed to serve the projected demands, frequent surpluses and occasional full utilization inevitably lead to price volatility. This paper develops a two-stage model of the generation market in which capacity construction occurs in stage 1, before demand realization, and price determination occurs in stage 2, when the equilibrium price ensures that the realized demand does not exceed the installed capacity. We show that price volatility and price spikes are inevitable, and that while price capping can mitigate high and volatile prices, it causes unmet demands and reduction in system reliability. This paper accentuates the interdependence among generating capacity, price volatility and service reliability, a primary cause of concern in the debate on electricity market reform.

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Article provided by Elsevier in its journal Energy Economics.

Volume (Year): 30 (2008)
Issue (Month): 4 (July)
Pages: 1625-1647

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Handle: RePEc:eee:eneeco:v:30:y:2008:i:4:p:1625-1647
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  1. Woo, Chi-Keung & Horowitz, Ira & Hoang, Khoa, 2001. "Cross hedging and forward-contract pricing of electricity," Energy Economics, Elsevier, vol. 23(1), pages 1-15, January.
  2. Green, Richard J & Newbery, David M, 1992. "Competition in the British Electricity Spot Market," Journal of Political Economy, University of Chicago Press, vol. 100(5), pages 929-53, October.
  3. Roques Fabien A. & Newbery David M. & Nuttall William J., 2005. "Investment Incentives and Electricity Market Design: the British Experience," Review of Network Economics, De Gruyter, vol. 4(2), pages 1-36, June.
  4. Jean J. Gabszewicz & Sougata Poddar, 1997. "Demand fluctuations and capacity utilization under duopoly," Economic Theory, Springer, vol. 10(1), pages 131-146.
  5. Green, R., 2004. "‘Did English Generators Play Cournot? Capacity Withholding in the Electricity Pool’," Cambridge Working Papers in Economics 0425, Faculty of Economics, University of Cambridge.
  6. Beth Allen & Raymond Deneckere & Tom Faith & Dan Kovenock, 1995. "Capacity precommitment as a barrier to entry: a Bertrand-Edgeworth approach," Staff Report 187, Federal Reserve Bank of Minneapolis.
  7. Lu, Yuanzhu & Poddar, Sougata, 2005. "Mixed oligopoly and the choice of capacity," Research in Economics, Elsevier, vol. 59(4), pages 365-374, December.
  8. Tishler, A. & Newman, J. & Spekterman, I. & Woo, C.K., 2006. "Cost-benefit analysis of reforming Israel's electricity industry," Energy Policy, Elsevier, vol. 34(16), pages 2442-2454, November.
  9. Newbery, D. M., 1997. "Competition, Contracts and Entry in the Electricity Spot Market," Cambridge Working Papers in Economics 9707, Faculty of Economics, University of Cambridge.
  10. Paul L. Joskow, 2005. "Markets For Power In The United States - An Interim Assessment," Working Papers 0512, Massachusetts Institute of Technology, Center for Energy and Environmental Policy Research.
  11. Peter Cramton & Steven Stoft, 2005. "A Capacity Market that Makes Sense," Papers of Peter Cramton 05licap, University of Maryland, Department of Economics - Peter Cramton, revised 2005.
  12. Woo, Chi-Keung & Lloyd, Debra & Tishler, Asher, 2003. "Electricity market reform failures: UK, Norway, Alberta and California," Energy Policy, Elsevier, vol. 31(11), pages 1103-1115, September.
  13. Li, Y. & Flynn, P.C., 2006. "Electricity deregulation, spot price patterns and demand-side management," Energy, Elsevier, vol. 31(6), pages 908-922.
  14. A. Michael Spence, 1977. "Entry, Capacity, Investment and Oligopolistic Pricing," Bell Journal of Economics, The RAND Corporation, vol. 8(2), pages 534-544, Autumn.
  15. Mount, Timothy D. & Ning, Yumei & Cai, Xiaobin, 2006. "Predicting price spikes in electricity markets using a regime-switching model with time-varying parameters," Energy Economics, Elsevier, vol. 28(1), pages 62-80, January.
  16. Deng, S.J. & Oren, S.S., 2006. "Electricity derivatives and risk management," Energy, Elsevier, vol. 31(6), pages 940-953.
  17. Bushnell, James, 2005. "Electricity Resource Adequacy: Matching Policies and Goals," The Electricity Journal, Elsevier, vol. 18(8), pages 11-21, October.
  18. David Besanko & Ulrich Doraszelski, 2002. "Capacity Dynamics and Endogenous Asymmetries in Firm Size," Computing in Economics and Finance 2002 196, Society for Computational Economics.
  19. Hendrik Bessembinder & Michael L. Lemmon, 2002. "Equilibrium Pricing and Optimal Hedging in Electricity Forward Markets," Journal of Finance, American Finance Association, vol. 57(3), pages 1347-1382, 06.
  20. David M. Newbery, 2005. "Electricity liberalization in Britain: The quest for a satisfactory wholesale market design," The Energy Journal, International Association for Energy Economics, vol. 0(Special I), pages 43-70.
  21. Green, Richard J, 1996. "Increasing Competition in the British Electricity Spot Market," Journal of Industrial Economics, Wiley Blackwell, vol. 44(2), pages 205-16, June.
  22. Carpio, Lucio Guido Tapia & Pereira, Amaro Jr., 2007. "Economical efficiency of coordinating the generation by subsystems with the capacity of transmission in the Brazilian market of electricity," Energy Economics, Elsevier, vol. 29(3), pages 454-466, May.
  23. Catherine D. Wolfram, 1999. "Measuring Duopoly Power in the British Electricity Spot Market," American Economic Review, American Economic Association, vol. 89(4), pages 805-826, September.
  24. Hung-po Chao, 1983. "Peak Load Pricing and Capacity Planning with Demand and Supply Uncertainty," Bell Journal of Economics, The RAND Corporation, vol. 14(1), pages 179-190, Spring.
  25. Maggi, Giovanni, 1996. "Strategic Trade Policies with Endogenous Mode of Competition," American Economic Review, American Economic Association, vol. 86(1), pages 237-58, March.
  26. Spulber, Daniel F, 1981. "Capacity, Output, and Sequential Entry," American Economic Review, American Economic Association, vol. 71(3), pages 503-14, June.
  27. Woo, Chi-Keung & Horowitz, Ira & Olson, Arne & Horii, Brian & Baskette, Carmen, 2006. "Efficient frontiers for electricity procurement by an LDC with multiple purchase options," Omega, Elsevier, vol. 34(1), pages 70-80, January.
  28. Nils-Henrik M. von der Fehr, Eirik S. Amundsen and Lars Bergman, 2005. "The Nordic Market: Signs of Stress?," The Energy Journal, International Association for Energy Economics, vol. 0(Special I), pages 71-98.
  29. Rochlin, Cliff & Huang, Jeff, 2005. "Resource Adequacy Requirement: Reserve Margin, Contract Cover, and Price Caps," The Electricity Journal, Elsevier, vol. 18(7), pages 55-68.
  30. Pedro Linares & Francisco Javier Santos & Mariano Ventosa & Luis Lapiedra, 2006. "Impacts of the European Emissions Trading Scheme Directive and Permit Assignment Methods on the Spanish Electricity Sector," The Energy Journal, International Association for Energy Economics, vol. 0(Number 1), pages 79-98.
  31. Woo, C.K. & King, M. & Tishler, A. & Chow, L.C.H., 2006. "Costs of electricity deregulation," Energy, Elsevier, vol. 31(6), pages 747-768.
  32. Oren, Shmuel S., 2005. "Generation Adequacy via Call Options Obligations: Safe Passage to the Promised Land," The Electricity Journal, Elsevier, vol. 18(9), pages 28-42, November.
  33. Severin Borenstein & James Bushnell, 1998. "An Empirical Analysis of the Potential for Market Power in California's Electricity Industry," NBER Working Papers 6463, National Bureau of Economic Research, Inc.
  34. Severin Borenstein & James B. Bushnell & Frank A. Wolak, 2002. "Measuring Market Inefficiencies in California's Restructured Wholesale Electricity Market," American Economic Review, American Economic Association, vol. 92(5), pages 1376-1405, December.
  35. Creti, Anna & Fabra, Natalia, 2007. "Supply security and short-run capacity markets for electricity," Energy Economics, Elsevier, vol. 29(2), pages 259-276, March.
  36. Bergman, Lars & Andersson, Bo, 1995. "Market Structure and the Price of Electricity: An ex ante Analysis of the deregulated Swedish Electricity Market," SSE/EFI Working Paper Series in Economics and Finance 47, Stockholm School of Economics.
  37. Bo Andersson & Lars Bergman, 1995. "Market Structure and the Price of Electricity: An Ex Ante Analysis of the Deregulated Swedish Electricity Market," The Energy Journal, International Association for Energy Economics, vol. 0(Number 2), pages 97-110.
  38. Hobbs, Benjamin F. & Iñón, Javier & Stoft, Steven E., 2001. "Installed Capacity Requirements and Price Caps: Oil on the Water, or Fuel on the Fire?," The Electricity Journal, Elsevier, vol. 14(6), pages 23-34, July.
  39. Jamasb, T. & Pollitt, M., 2004. "Electricity Market Reform in the European Union: Review of progress towards liberalisation and integration," Cambridge Working Papers in Economics 0471, Faculty of Economics, University of Cambridge.
  40. Tishler, A. & Woo, C.K., 2006. "Likely failure of electricity deregulation: Explanation with application to Israel," Energy, Elsevier, vol. 31(6), pages 845-856.
  41. Francis A. Longstaff & Ashley W. Wang, 2004. "Electricity Forward Prices: A High-Frequency Empirical Analysis," Journal of Finance, American Finance Association, vol. 59(4), pages 1877-1900, 08.
  42. Michael Beenstock & Ephraim Goldin & Yoel Haitovsky, 1997. "The Cost of Power Outages in the Business and Public Sectors in Israel: Revealed Preference vs. Subjective Valuation," The Energy Journal, International Association for Energy Economics, vol. 0(Number 2), pages 39-61.
  43. Roques, F.A. & Savva , N.S., 2006. "Price Cap Regulation and Investment Incentives under Demand Uncertainty," Cambridge Working Papers in Economics 0636, Faculty of Economics, University of Cambridge.
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