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An agent-based simulation of power generation company behavior in electricity markets under different market-clearing mechanisms

Esmaeili Aliabadi, Danial and Kaya, Murat and Şahin, Güvenç (2017) An agent-based simulation of power generation company behavior in electricity markets under different market-clearing mechanisms. Energy Policy, 100 . pp. 191-205. ISSN 0301-4215 (Print) 1873-6777 (Online)

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Official URL: http://dx.doi.org/10.1016/j.enpol.2016.09.063

Abstract

Deregulated electricity markets are expected to provide affordable electricity for consumers through promoting competition. Yet, the results do not always fulfill the expectations. The regulator's market-clearing mechanism is a strategic choice that may affect the level of competition in the market. We conceive of the market-clearing mechanism as composed of two components: pricing rules and rationing policies. We investigate the strategic behavior of power generation companies under different market-clearing mechanisms using an agent-based simulation model which integrates a game-theoretical understanding of the auction mechanism in the electricity market and generation companies' learning mechanism. Results of our simulation experiments are presented using various case studies representing different market settings. The market in simulations is observed to converge to a Nash equilibrium of the stage game or to a similar state under most parameter combinations. Compared to pay-as-bid pricing, bid prices are closer to marginal costs on average under uniform pricing while GenCos' total profit is also higher. The random rationing policy of the ISO turns out to be more successful in achieving lower bid prices and lower GenCo profits. In minimizing GenCos' total profit, a combination of pay-as-bid pricing rule and random rationing policy is observed to be the most promising.

Item Type:Article
Uncontrolled Keywords:Agent-based simulation, Reinforcement learning, Uniform pricing, Pay-as-bid pricing, DC-OPF, Game-theory
Subjects:T Technology > T Technology (General) > T055.4-60.8 Industrial engineering. Management engineering > T57.6-57.97 Operations research. Systems analysis
ID Code:31128
Deposited By:Murat Kaya
Deposited On:20 Apr 2017 11:40
Last Modified:20 Apr 2017 11:40

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