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Strategic investment in merchant transmission: the impact of capacity utilization rules

Author

Listed:
  • Federico Boffa

    (Free University of Bolzano & IEB)

  • Viswanath Pingali

    (Indian Institute of Management Ahmedabad)

  • Francesca Sala

    (Competition and Markets Authority)

Abstract

In this paper we look at the relative merits of two capacity utilization regimes in the merchant electricity transmission network: Must offer (Mo) where the entire capacity installed is made available for transmission and Non Must Offer (NMo) where some capacity could be withheld. We look at two specific cases: (i) Demand for transmission varies across time, and (ii) Vertical integration is allowed between investors in transmission network and electricity generators. In the case of time-varying demand under Mo, we find that a monopolist may underinvest in transmission when compared to NMo, although NMo may lead to more capacity withholding. In the case of vertical integration, we find that when the market power is with the generators of the exporting node, without vertical integration no welfare-enhancing merchant investment would occur. Further, if the generators in the importing node have market power, which of the two regimes is welfare enhancing depends on the parameter values. In case vertical integration is better, then Mo is better than NMo. Finally, we also argue that the incentive to collude among various transmission network investors is mitigated with Mo in place.

Suggested Citation

  • Federico Boffa & Viswanath Pingali & Francesca Sala, 2015. "Strategic investment in merchant transmission: the impact of capacity utilization rules," Working Papers 2015/12, Institut d'Economia de Barcelona (IEB).
    • Handle: RePEc:ieb:wpaper:doc2015-12
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    References listed on IDEAS

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    Cited by:

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    More about this item

    Keywords

    Electricity transmission; merchant lines; capacity utilization; vertical integration; collusion;
    All these keywords.

    JEL classification:

    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities
    • D24 - Microeconomics - - Production and Organizations - - - Production; Cost; Capital; Capital, Total Factor, and Multifactor Productivity; Capacity

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