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On the functioning of a capacity market with an increasing share of renewable energy

Author

Listed:
  • Sebastian Schäfer

    (Universität Siegen)

  • Lisa Altvater

    (Universität Siegen)

Abstract

Capacity auctions with reliability options are seen as a promising possibility to reduce the investment risk for electricity generators as well as to set incentives for sufficient investments in generating capacity. However, there has been little attention so far on the interaction between a capacity market and an increasing share of renewable energy. In a first step we formalize the functioning of capacity auctions with reliability options. We improve their incentive regulation to allow effective incentives for sufficient investments. In a second step we study, with comparative statics, how an increasing share of renewable energy, varying carbon emission costs and the existing capacity mix influence the outcome of a capacity auction. For an increasing share of renewable energy, capacity auctions direct investments to more flexible power plants. This opposes the merit order effect of renewable energy which is observed at energy-only markets. A capacity market can therefore prevent missing flexibility feared at energy-only markets as a result of an increasing share of renewable energy.

Suggested Citation

  • Sebastian Schäfer & Lisa Altvater, 2019. "On the functioning of a capacity market with an increasing share of renewable energy," Journal of Regulatory Economics, Springer, vol. 56(1), pages 59-84, August.
    • Handle: RePEc:kap:regeco:v:56:y:2019:i:1:d:10.1007_s11149-019-09389-6
    DOI: 10.1007/s11149-019-09389-6
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    Cited by:

    1. Sebastian Schäfer & Lisa Altvater, 2021. "A Capacity Market for the Transition towards Renewable-Based Electricity Generation with Enhanced Political Feasibility," Energies, MDPI, vol. 14(18), pages 1-24, September.

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    More about this item

    Keywords

    Capacity markets; Electricity markets; Reliability options; Renewable energy; Merit order effect;
    All these keywords.

    JEL classification:

    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices
    • Q42 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Alternative Energy Sources
    • Q48 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Government Policy
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities

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