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Enhancing Intraday Price Signals in U.S. ISO Markets for a Better Integration of Variable Energy Resources

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  • Ignacio Herrero, Pablo Rodilla, and Carlos Batlle

Abstract

Efficient operation of power systems increasingly requires accurate forecasting of load and variable energy resources (VER) production, along with flexible resources and markets, capable of adapting to changing conditions in the intraday horizon. It is of utmost importance to reflect these needs in price signals, to align the incentives of market agents with the new challenges. The two-settlement system used by U.S. ISOs falls short to provide efficient intraday economic signals and a cost reflective allocation of intraday rescheduling costs. This paper advocates for a multi-settlement system, which entails calculating intraday prices as forecasts are updated and re-schedules are executed. This approach incorporates more granular prices, as in European intraday markets, while keeping the efficient centralized dispatch logic of the ISO model. A stylized case example illustrates the virtues of a multi-settlement system, which sends cost reflective signals, and consequently facilitates VER integration.

Suggested Citation

  • Ignacio Herrero, Pablo Rodilla, and Carlos Batlle, 2018. "Enhancing Intraday Price Signals in U.S. ISO Markets for a Better Integration of Variable Energy Resources," The Energy Journal, International Association for Energy Economics, vol. 0(Number 3).
    • Handle: RePEc:aen:journl:ej39-3-herrero
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    Cited by:

    1. Neuhoff, Karsten & Richstein, Jörn C. & Kröger, Mats, 2023. "Reacting to changing paradigms: How and why to reform electricity markets," Energy Policy, Elsevier, vol. 180(C).
    2. Holmberg, Pär & Tangerås, Thomas & Ahlqvist, Victor, 2018. "Central- versus Self-Dispatch in Electricity Markets," Working Paper Series 1257, Research Institute of Industrial Economics, revised 27 Mar 2019.
    3. Chaves, J. P. & Cossent, R. & Gómez San Román, T. & Linares, P. & Rivier, M., 2023. "An assessment of the European electricity market reform options and a pragmatic proposal," Cambridge Working Papers in Economics 2325, Faculty of Economics, University of Cambridge.
    4. Muñoz, Francisco D. & Suazo-Martínez, Carlos & Pereira, Eduardo & Moreno, Rodrigo, 2021. "Electricity market design for low-carbon and flexible systems: Room for improvement in Chile," Energy Policy, Elsevier, vol. 148(PB).
    5. Mays, Jacob, 2021. "Missing incentives for flexibility in wholesale electricity markets," Energy Policy, Elsevier, vol. 149(C).
    6. J.P. Chaves & R. Cossent & T. Gómez San Román & P. Linares & M. Rivier, 2023. "An assessment of the European electricity market reform options and a pragmatic proposal," Working Papers EPRG2305, Energy Policy Research Group, Cambridge Judge Business School, University of Cambridge.
    7. Eicke, Anselm & Schittekatte, Tim, 2022. "Fighting the wrong battle? A critical assessment of arguments against nodal electricity prices in the European debate," Energy Policy, Elsevier, vol. 170(C).
    8. Shilpa Bindu & José Pablo Chaves Ávila & Luis Olmos, 2023. "Factors Affecting Market Participant Decision Making in the Spanish Intraday Electricity Market: Auctions vs. Continuous Trading," Energies, MDPI, vol. 16(13), pages 1-23, July.
    9. Guo, Nongchao & Lo Prete, Chiara, 2019. "Cross-product manipulation with intertemporal constraints: An equilibrium model," Energy Policy, Elsevier, vol. 134(C).
    10. Van Moer, Geert, 2019. "Electricity market competition when forward contracts are pairwise efficient," MPRA Paper 96660, University Library of Munich, Germany.
    11. Heeseung Moon & Dongsu Lee & Jeongmin Han & Yongtae Yoon & Seungwan Kim, 2021. "Impact of Imbalance Pricing on Variable Renewable Energies with Different Prediction Accuracies: A Korean Case," Energies, MDPI, vol. 14(13), pages 1-19, July.
    12. Hohl, Cody & Lo Prete, Chiara & Radhakrishnan, Ashish & Webster, Mort, 2023. "Intraday markets, wind integration and uplift payments in a regional U.S. power system," Energy Policy, Elsevier, vol. 175(C).
    13. Mastropietro, Paolo & Rodilla, Pablo & Rangel, Lina Escobar & Batlle, Carlos, 2020. "Reforming the colombian electricity market for an efficient integration of renewables: A proposal," Energy Policy, Elsevier, vol. 139(C).

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    JEL classification:

    • F0 - International Economics - - General

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