Impact of Detailed Parameter Modeling of Open-Cycle Gas Turbines on Production Cost Simulation

Arnav Bagga, Sridhar Seetharaman, Zachary Holman, Brian Sergi, Julian Osorio, Mayank Panwar, Travis Lowder, Rob Hovsapian

Research output: Contribution to conferencePaper


Flexible resources are increasingly important as variable renewable energy deployment in the power system increases. Although many systems are transitioning away from fossil fuels, open-cycle gas turbines are likely to play an important balancing role for some time, thus requiring accurate modeling of their operational parameters. This paper explores the impact of detailed representation of three operational parameters-startup costs, run-up rates, and forced outage ratesin the production cost model of a system as it adopts higher levels of wind and solar. Using PLEXOS simulations of the NREL-118 bus test system, the study examines how more detailed parameter modeling affects outcomes such as the number of start-ups and shutdowns, ramping and total generation costs for open-cycle gas turbines, as renewable energy levels increase. The results suggest the value of detailed parameter modeling and continued research on combustion turbines' ability to provide flexibility.
Original languageAmerican English
Number of pages6
StatePublished - 2023
EventNorth American Power Symposium - Asheville, NC
Duration: 15 Oct 202317 Oct 2023


ConferenceNorth American Power Symposium
CityAsheville, NC

Bibliographical note

See NREL/CP-6A40-87554 for preprint

NREL Publication Number

  • NREL/CP-6A40-88574


  • economic dispatch
  • energy markets
  • open-cycle gas turbine
  • production cost simulation
  • unit commitment


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