Impact of Thermal Plant Operational Flexibility on VRE Curtailment: The Curtailment Paradox

Research output: NRELPresentation

Abstract

This presentation provides an overview of a previously published paper in Joule "The curtailment paradox in the transition to high solar power systems." The adoption of PV and battery storage has accelerated globally in recent years, driven by rapid cost declines. A corresponding increase in curtailment is anticipated as PV growth continues. This study explores the effect of system flexibility options on curtailment across increasing PV penetration levels. Results highlight a paradox where thermal generator flexibility matters most only at mid-PV penetration levels (25%-40%), and a misalignment exists where PV provides system value by providing operating reserves without sufficient opportunity for monetary compensation.
Original languageAmerican English
Number of pages19
StatePublished - 2022

Publication series

NamePresented at the ESIG 2022 Spring Technical Workshop, 21-24 March 2022, Tucson, Arizona

NREL Publication Number

  • NREL/PR-6A40-82019

Keywords

  • capacity expansion modeling
  • curtailment
  • energy storage
  • minimum generation levels
  • minimum up-and-down time
  • operating reserves
  • production cost modeling
  • ramping
  • renewable energy
  • solar photovoltaic generation

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