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The TC-PSI indicator for forecasting the potential for market power in wholesale electricity markets
KTH, School of Electrical Engineering (EES), Electric Power Systems.
2011 (English)In: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 39, no 10, 5988-5998 p.Article in journal (Refereed) Published
Abstract [en]

Wholesale electricity market regulators have long sought a simple, reliable, transparent indicator of the likely impact of wholesale market developments on the exercise of market power. Conventional indicators, such as the Pivotal Supplier Indicator (PSI) and the Residual Supply Index (RSI) cannot be extended to apply to meshed transmission networks, especially when generating companies hold a portfolio of generating units at different locations on the network. This paper proposes a generalisation of these standard measures termed the "Transmission-Constrained Pivotal Supplier Indicator (IC-PSI)". The TC-PSI of a generating company is defined as the maximum must-run generation for any subset of generating plant while allowing for strategic operation of other plant in the portfolio. We illustrate the use of the TC-PSI using a five-node model of the Australian NEM.

Place, publisher, year, edition, pages
2011. Vol. 39, no 10, 5988-5998 p.
Keyword [en]
Market power, Pivotal supplier indicator, Merger analysis
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-47991DOI: 10.1016/j.enpol.2011.06.061ISI: 000295753000032Scopus ID: 2-s2.0-80052740148OAI: oai:DiVA.org:kth-47991DiVA: diva2:456895
Note
QC 20111116Available from: 2011-11-16 Created: 2011-11-15 Last updated: 2017-12-08Bibliographically approved

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