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Impact of technical operational details on generation expansion in oligopolistic power markets

A. Nogales, S. Wogrin, E. Centeno

Renewable generation technologies are expected to reach unprecedented penetration levels in a number of electric power systems. The increased deployment of these renewable technologies is changing the unit commitment of the rest of generation facilities, increasing the need for cycling. As a result, operation-related issues and their costs become more relevant for an adequate analysis of generation expansion problems. In this study, the authors propose a generation expansion model including an oligopolistic market representation based on an equilibrium approach. It introduces key operation-related constraints, such as minimum stable output, start-ups and shut-downs; and short-term operating costs, such as commitment, start-up and shut-down costs. The proposed model furthermore considers the discrete nature of capacity investment decisions. The authors also propose a heuristic method for solving the arising equilibrium problem, by providing an efficient starting point to the diagonalisation process. This heuristic can lead to reductions of up to 90% in computational time. Finally, case studies are presented in order to illustrate the importance of considering both operational details and a market framework when making generation expansion planning decisions.


IET Generation Transmission & Distribution. Volume: 10 Issue: 9 Pages: 2118-2126

JCR Impact Factor and Scopus quartile: JCR impact factor: 2.213 (2016); 3.229 (2018).

DOI reference: DOI icon 10.1049/iet-gtd.2015.1148    

Published on paper: June 2016. Published on-line: June 2016.

A. Nogales, S. Wogrin, E. Centeno. Impact of technical operational details on generation expansion in oligopolistic power markets. IET Generation Transmission & Distribution. vol. 10, no. 9, pp. 2118-2126, June 2016. [Online: June 2016]

    Topics research:
  • *Long-term strategic analysis

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