A Review of Power System Planning and Operational Models for Flexibility Assessment in High Solar Energy Penetration Scenarios

Michael Emmanuel, Kate Doubleday, Burcin Cakir, Marija Markovic, Bri-Mathias Hodge

Research output: Contribution to journalArticlepeer-review

54 Scopus Citations

Abstract

This article reviews power system flexibility assessment, which is necessary to ensure both instantaneous stability and long-term security of supply under high penetrations of variable, uncertain, and asynchronous renewable energy resources, such as solar photovoltaics. This article reviews the concept of flexibility and summarizes metrics for evaluating power system flexibility, which is not yet available in the literature. Power system planning and operational models applicable for flexibility assessment, including net load analysis, capacity expansion, production cost, and dynamic models, are reviewed in a comprehensive literature survey, with a focus on high solar and other variable renewable energy penetrations. Each of these models applies different methodological approaches and feasibility criteria appropriate at different timescales. Finally, this article presents a conceptual integrated framework to combine these models for a holistic assessment of power system flexibility requirements across all timescales, from multiyear to sub-cycle.

Original languageAmerican English
Pages (from-to)169-180
Number of pages12
JournalSolar Energy
Volume210
DOIs
StatePublished - 2020

Bibliographical note

Publisher Copyright:
© 2020 International Solar Energy Society

NREL Publication Number

  • NREL/JA-5D00-75984

Keywords

  • Flexibility metrics
  • Integrated modeling
  • Power system flexibility
  • Power system modeling

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