Nodal Capacity Expansion Modeling with ReEDS: A Case Study of the RTS-GMLC Test System

Akash Karmakar, Wesley Cole

Research output: NRELTechnical Report


Test systems play an important role in power systems analysis and are used extensively for a wide range of purposes like reliability analysis, production cost modeling, studying the impacts of load shifting, and many more. These test systems have continued to evolve over the years to keep pace with changing system compositions due to technology and policy changes. In this work, we apply the Regional Energy Deployment System (ReEDS) model, a large-scale capacity expansion model (CEM), on the nodal RTS-GMLC system to perform capacity expansion of the bus-level test system. This work both demonstrates that a large-scale CEM can successfully be applied to nodal systems, and that the CEM can allow a test system to be evolved to meet desired criteria. The process allowed the coupling of CEM data not available in the test system (such as capital costs) with test system data to provide plausible system evolutions in line with scenario specifications.
Original languageAmerican English
Number of pages21
StatePublished - 2024

NREL Publication Number

  • NREL/TP-6A40-87870


  • nodal capacity expansion modeling
  • power system planning
  • ReEDS
  • test systems


Dive into the research topics of 'Nodal Capacity Expansion Modeling with ReEDS: A Case Study of the RTS-GMLC Test System'. Together they form a unique fingerprint.

Cite this