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A cobweb bidding model for competitive electricity markets

J. Contreras, O. Candiles, J.I. de la Fuente, T. Gómez

The new competitive framework that has been established in several electricity markets all over the world has changed the way that electric companies attain benefits. Under this new scenario, generation companies need to develop bidding models not only for the sake of achieving a feasible dispatch of their units, but also for maximizing their benefits. This paper presents a new bidding strategies model which considers the global policy of a company, but also specifies the bid of each generating unit. The proposed model produces a maximum price bid and an optimal bidding quantity by means of an iterative procedure using the generating company\'s residual demand curve. It is based on an economic principle known as the cobweb theorem, frequently used to study stability in trading markets. A realistic case study from the Spanish daily electric market is presented to illustrate the methodology.

Keywords: Bidding strategies, cobweb theorem, electricity markets, Nash–Cournot equilibrium, residual demand

IEEE Transactions on Power Systems. Volume: 17 Issue: 1 Pages: 148-153

JCR Impact Factor and Scopus quartile: JCR impact factor: 0.667 (2002); 6.807 (2018).

DOI reference: DOI icon 10.1109/59.982206    

Published on paper: February 2002.

J. Contreras, O. Candiles, J.I. de la Fuente, T. Gómez. A cobweb bidding model for competitive electricity markets. IEEE Transactions on Power Systems. vol. 17, no. 1, pp. 148-153, February 2002.

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