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Capacity Payment Mechanisms and Investment Incentives in Restructured Electricity Markets

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  • Brown, David

    (University of Alberta, Department of Economics)

Abstract

I analyze the ability of capacity payment mechanisms to alleviate underinvestment in electricity generation capacity. I derive the optimal capacity payment parameters under two capacity payment mechanisms, when capacity demand is price-elastic and when it is price-inelastic. Price-elastic capacity demand reduces the firms’ abilities to exercise market power, alleviates the bimodal capacity market pricing structure, and reduces the degree of market concentration.Further, at the optimal capacity demand parameters, expected welfare, consumer surplus, and aggregate capacity is higher under the price-elastic demand setting. However, a certain degree of underinvestment in generation capacity persists. These findings support the movement of regulatory policy towards a price-elastic capacity demand regime with market monitoring.

Suggested Citation

  • Brown, David, 2014. "Capacity Payment Mechanisms and Investment Incentives in Restructured Electricity Markets," Working Papers 2014-13, University of Alberta, Department of Economics.
    • Handle: RePEc:ris:albaec:2014_013
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    2. Klaus Eisenack & Mathias Mier, 2019. "Peak-load pricing with different types of dispatchability," Journal of Regulatory Economics, Springer, vol. 56(2), pages 105-124, December.
    3. S. Oliveira, Fernando & William-Rioux, Bertrand & Pierru, Axel, 2023. "Capacity expansion in liberalized electricity markets with locational pricing and renewable energy investments," Energy Economics, Elsevier, vol. 127(PB).
    4. Bialek, Sylwia & Ünel, Burçin, 2022. "Efficiency in wholesale electricity markets: On the role of externalities and subsidies," Energy Economics, Elsevier, vol. 109(C).
    5. Yiakoumi, Despina & Rouaix, Agathe & Phimister, Euan, 2022. "Evaluating capacity auction design for electricity: An experimental analysis," Energy Economics, Elsevier, vol. 115(C).
    6. Cl'emence Alasseur & Heythem Farhat & Marcelo Saguan, 2019. "A Principal-Agent approach to Capacity Remuneration Mechanisms," Papers 1911.12623, arXiv.org, revised Sep 2020.
    7. Sirin, Selahattin Murat & Erten, Ibrahim, 2022. "Price spikes, temporary price caps, and welfare effects of regulatory interventions on wholesale electricity markets," Energy Policy, Elsevier, vol. 163(C).
    8. Milstein, Irena & Tishler, Asher, 2019. "On the effects of capacity payments in competitive electricity markets: Capacity adequacy, price cap, and reliability," Energy Policy, Elsevier, vol. 129(C), pages 370-385.
    9. Woo, C.K. & Milstein, I. & Tishler, A. & Zarnikau, J., 2019. "A wholesale electricity market design sans missing money and price manipulation," Energy Policy, Elsevier, vol. 134(C).
    10. Zhang, Yuanyuan & Zhao, Huiru & Li, Bingkang, 2022. "Research on the design and influence of unit generation capacity adequacy guarantee mechanism in the power market," Energy, Elsevier, vol. 248(C).
    11. Bajo-Buenestado, Raúl, 2017. "Welfare implications of capacity payments in a price-capped electricity sector: A case study of the Texas market (ERCOT)," Energy Economics, Elsevier, vol. 64(C), pages 272-285.
    12. Ghasemi-Marzbali, Ali, 2020. "Multi-area multi-source automatic generation control in deregulated power system," Energy, Elsevier, vol. 201(C).
    13. Steinhäuser, J. Micha & Eisenack, Klaus, 2020. "How market design shapes the spatial distribution of power plant curtailment costs," Energy Policy, Elsevier, vol. 144(C).
    14. Liebensteiner, Mario & Wrienz, Matthias, 2020. "Do Intermittent Renewables Threaten the Electricity Supply Security?," Energy Economics, Elsevier, vol. 87(C).
    15. Bichuch, Maxim & Hobbs, Benjamin F. & Song, Xinyue, 2023. "Identifying optimal capacity expansion and differentiated capacity payments under risk aversion and market power: A financial Stackelberg game approach," Energy Economics, Elsevier, vol. 120(C).
    16. Jayadev, Gopika & Leibowicz, Benjamin D. & Kutanoglu, Erhan, 2020. "U.S. electricity infrastructure of the future: Generation and transmission pathways through 2050," Applied Energy, Elsevier, vol. 260(C).

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    More about this item

    Keywords

    electricity; capacity markets; reliability; market power; regulation;
    All these keywords.

    JEL classification:

    • D44 - Microeconomics - - Market Structure, Pricing, and Design - - - Auctions
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L50 - Industrial Organization - - Regulation and Industrial Policy - - - General
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities
    • Q40 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - General

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