Oligopolistic Competition in Power Networks A Conjectured Supply Function Approach.pdf

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Oligopolistic Competition in Power Networks A Conjectured Supply Function Approach.pdf

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Oligopolistic Competition in Power Networks A Conjectured Supply Function Approach

PWP-090 Oligopolistic Competition in Power Networks: A Conjectured Supply Function Approach Christopher J. Day, Benjamin F. Hobbs, and Jong-Shi Pang February, 2002 This paper is part of the working papers series of the Program on Workable Energy Regulation (POWER). POWER is a program of the University of California Energy Institute, a multicampus research unit of the University of California, located on the Berkeley campus. University of California Energy Institute 2539 Channing Way Berkeley, California 94720-5180 ? 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by the copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by the copyright. These works may not be reposted without the explicit permission of the copyright holder. 1 Abstract—Conjectured supply function (CSF) models of competition among power generators on a linearized DC net- work are presented. As a detailed survey of the power market modeling literature shows, CSF models differ from previous ap- proaches in that they represent each GenCos conjectures re- garding how rival firms will adjust sales in response to price changes. The CSF approach is a more realistic and flexible framework for modeling imperfect competition than other mod- els for three reasons. First, the models include as a special case the Cournot conjecture that rivals will not change production if prices change; thus, the CSF framework is more general. Sec- ond, Cournot models cannot be used when price elasticity of demand is zero, but th