Hydropower Flexibility for Power Systems with Variable Renewable Energy Sources: An IEA Task 25 Collaboration

Daniel Huertas-Hernando, Hossein Farahmand, Hannele Holttinen, Juha Kiviluoma, Erkka Rinne, Lennart Söder, Michael Milligan, Eduardo Ibanez, Sergio M. Martinez, Emilio Gómez-Lázaro, Ana Estanqueiro, Luis Rodrigues, Luis Carr, Serafin van Roon, Antje Orths, Peter B. Eriksen, Alain Forcione, Nickie Menemenlis

    Research output: Chapter in Book/Report/Conference proceedingChapter or book articleScientificpeer-review

    10 Citations (Scopus)

    Abstract

    In order to effectively utilize hydro production flexibility, a sufficient amount of transmission capacity has to be available between the hydro-dominated part of the system and the part that requires operational flexibility. This chapter starts with a rough categorization of “base” hydropower flexibility, investigating the types of hydropower plants installed in power systems today. The “effective” hydropower flexibility available to support the integration of variable generation is a far more complex and case-specific aspect. It is discussed through national experiences. The chapter presents potential developments that would increase the participation of hydropower and discuss the ensuing challenges. Modeling a flow-based hydro system is a complex exercise, as is modeling the power system. Especially important is the correct assessment of hydropower flexibility to support power systems with a large share of variable generation (VG) and its value for storage. With increasing uncertainty and variability, a stochastic scheduling approach should yield lower costs.

    Original languageEnglish
    Title of host publicationAdvances in Energy Systems
    Subtitle of host publicationThe Large-scale Renewable Energy Integration Challenge
    PublisherWiley-VCH Verlag
    Chapter23
    Pages385-405
    Number of pages21
    ISBN (Electronic)9781119508311
    ISBN (Print)9781119508281
    DOIs
    Publication statusPublished - 1 Jan 2019
    MoE publication typeA3 Part of a book or another research book

    Keywords

    • flow-based hydro system
    • hydropower flexibility
    • hydropower plants types
    • power system
    • stochastic scheduling approach
    • variable generation

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