Method to detect and measure potential market power on electricity markets using the concept of monopolistic energy

2009 ◽  
Author(s):  
Martin Elfstadius ◽  
Daniel Gecer ◽  
Lars Nordstrom ◽  
Daniel Axehill
Keyword(s):  
Market Power ◽  
Electricity Markets ◽  
Potential Market

scholarly journals Competition in Power Generation: Ex-ante Analysis of Indonesia’s Electricity Market

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6741
Author(s):  
Dzikri Firmansyah Hakam ◽  
Sudarso Kaderi Wiyono ◽  
Nanang Hariyanto
Keyword(s):  
Power System ◽  
Market Structure ◽  
Market Power ◽  
Electricity Markets ◽  
Electricity Market ◽  
Regulatory Reform ◽  
Optimal Number ◽  
Load Flow ◽  
Utility Company ◽  
Competitive Electricity Markets

This research optimises the mix and structure of Generation Companies (GenCos) in the Sumatra power system, Indonesia. Market power, indicating the ability to raise prices profitably above the competitive level, tends to be a significant problem in the aftermath of electricity market restructuring. In the process of regulatory reform and the development of competitive electricity markets, it is desirable and practical to establish an efficient number of competitor GenCos. Simulations of a power system account for multi-plant mergers of GenCos subject to a regulatory measure of the Residual Supply Index and the influence of direct current load flow and the topology of the system. This study simulates the Sumatra power system in order to determine the following: optimal market structure, efficient GenCo generation mix, and the optimal number of competitive GenCos. Further, this study seeks to empirically optimise the electricity generation mix and electricity market structure of the Sumatra power system using DC load flow optimisation, market power index, and multi-plant monopoly analysis. The simulations include generation and transmission constraints to represent network constraints. This research is the first to analyse the Sumatra power system using imperfect (Cournot) competition modelling. Furthermore, this study is the first kind to optimise the mix and structure of the Sumatra generation power market. The guidelines and methodology in this research can be implemented in other countries characterised by a monopoly electricity utility company.

New Indices of Market Power in Transmission-Constrained Electricity Markets

2011 ◽  
Vol 26 (2) ◽  
pp. 681-689 ◽  
Author(s):  
Yen-Yu Lee ◽  
Jin Hur ◽  
Ross Baldick ◽  
Salvador Pineda
Keyword(s):  
Market Power ◽  
Electricity Markets

International Perspectives on Electricity Market Monitoring and Market Power Mitigation

2007 ◽  
Vol 6 (3) ◽  
Author(s):  
José A. García ◽  
James D. Reitzes
Keyword(s):  
Market Power ◽  
Electricity Markets ◽  
Electricity Market ◽  
Information Disclosure ◽  
Design Features ◽  
Disclosure Requirements ◽  
Market Monitoring ◽  
International Perspectives ◽  
Ex Post ◽  
Bilateral Trading

We review the different market monitoring and market-power mitigation policies that arise in world electricity markets. Regulators for electricity markets apparently respond to differences in underlying market structure and design features when choosing between ex-ante (that is, rule-based) behavioral restrictions as opposed to ex-post enforcement (that is, investigations and sanctions) as the principal means for deterring abuses of market power. Particular design features that influence market-monitoring policies are whether the market is one-part (energy only) versus two-part (energy and capacity), and whether there is centralized or bilateral trading. Information-disclosure requirements also are a key element of market monitoring.

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