Market coupling and the organization of counter-trading: separating energy and transmission again?

Giorgia Oggioni () and Yves Smeers ()
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Giorgia Oggioni: University of Brescia, Department of Quantitative Methods, I-25122 Brescia, Italy
Yves Smeers: CORE and School of Engineering (INMA), Université catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium

No 2010053, LIDAM Discussion Papers CORE from Université catholique de Louvain, Center for Operations Research and Econometrics (CORE)

Abstract: The horizontal integration of the energy market and the organization of transmission services remain two open issues in the restructured European electricity sector. The coupling of the French, Belgian and Dutch electricity markets (the trilateral market) in November 2006 was a real success that the inclusion of Germany to the trilateral market should soon prolong. But the extension of market coupling whether in Central Western Europe or in other European regions encounters several difficulties and the future remains far from clear. The highly meshed grid of continental Europe complicates things and it is now sometimes recognized that the penetration of wind will further exacerbate these difficulties. The nodal system could go a long way towards solving these problems, but its implementation is not yet foreseen in the EU. This paper analyzes versions of market coupling that differ by the organization of counter- trading. While underplayed in current discussions, counter-trading will become a key element of market coupling as its geographic coverage expands and wind penetration develops. We consider a stylized six node example found in the literature and simulate market coupling for different assumptions of zonal decomposition and coordination of TSOs. We show that these assumptions matter: market coupling can be quite vulnerable to the particular situation on hand; counter-trading can work well or completely fail depending on the case and it is not clear beforehand what will prevail. Our analysis relies on standard economic notions such as social welfare, Nash and Generalized Nash equilibrium. But the use of these notions is probably novel. We also simplify matters by assuming away strategic behaviour. The nodal organization is the reference first best scenario: different zonal decompositions and degrees of coordinations are then studied with respect to this first best solution.

Keywords: market coupling; counter-trading; European electricity market; Generalized Nash equilibrium (search for similar items in EconPapers)
JEL-codes: D52 D58 Q40 (search for similar items in EconPapers)
Date: 2010-09-01
New Economics Papers: this item is included in nep-ene
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Citations: View citations in EconPapers (5)

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