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Working paper / Energy

Reconsidering the Regulation of Merchant Transmission Investment in the Light of the Third Energy Package: The Role of Dominant Generators

Author(s): DE HAUTECLOCQUE Adrien, RIOUS Vincent

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ABSTRACT

Following the grant of exemptions from the EC rules on third party access to the interconnectors BritNed, Estlink and East West Cables, the regulation of merchant transmission investment has become an important issue in the electricity sector. The creation of a new Agency for the Cooperation of Energy Regulators (ACER), which will enjoy decision powers on this issue, is therefore a unique occasion to question and maybe re-design the current strategy. This paper shows that the recent decisions evidence a strong bias against dominant generators and that incumbent or new entrant TSOs are generally favoured by European regulators and the European Commission. It argues that this strategy is misguided as it fails to recognize both the conflict of interest between the regulated and non-regulated activities of incumbent TSOs and the new incentives of generators. The opportunity to let dominant generators undertake merchant investment is then investigated and we find that it is generally welfare-improving as long as potential abuses of dominance can be mitigated. To deter possible anti-competitive effects, the paper proposes a new and feasible allocation of regulatory powers based on a clear demarcation between the monitoring of transparency requirements by ACER and antitrust enforcement by the European Commission.