Market implications of reliability unit commitment formulations for Day-Ahead scheduling

Garret L. Labove, Robin Broder Hytowitz, Kory Hedman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


Reliability Unit Commitment (RUC) is a process by which Independent System Operators (ISOs) commit generation capacity to ensure reliability is maintained for forecasted demand levels. Typically, this process is performed sequentially, where the RUC follows a Day-Ahead Market (DAM) closing to procure additional capacity when the total system demand in the market closing is below forecasted levels. The RUC stage of this process chooses generation commitment decisions that minimize the startup and minimum-load cost components necessary to meet the additional demand requirements. This two-stage approach produces suboptimal solutions for this forward market. An alternative approach is to integrate the DAM and RUC processes such that resources are procured and scheduled simultaneously. In this paper, a model has been developed to compare the two stage (DAM-RUC) formulation and an integrated approach in order to investigate market impacts associated with each structure.

Original languageEnglish (US)
Title of host publication2014 IEEE PES General Meeting / Conference and Exposition
PublisherIEEE Computer Society
ISBN (Electronic)9781479964154
StatePublished - Oct 29 2014
Event2014 IEEE Power and Energy Society General Meeting - National Harbor, United States
Duration: Jul 27 2014Jul 31 2014

Publication series

NameIEEE Power and Energy Society General Meeting
ISSN (Print)1944-9925
ISSN (Electronic)1944-9933


Other2014 IEEE Power and Energy Society General Meeting
Country/TerritoryUnited States
CityNational Harbor


  • Ancillary services
  • market design
  • power systems economics
  • reliability unit commitment
  • security-constrained unit commitment

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering


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