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Generator Fleet Characteristics Model



Cheyney O'Fallon, Avi Gopstein


This manuscript presents the Generator Fleet Characteristics Model (GFCM), a general purpose tool for the analysis of power system operations, economics, and resilience. The GFCM is a collection of MATLAB functions that use publicly available data with national coverage to produce year-long (8760 hour) analyses of the electric grid at the balancing authority level. As the name implies, the GFCM builds up a series of snapshots of electric grid conditions and outcomes using the economics of the generator fleet as a starting point for understanding system complexity and dynamics. While the synchronous inertia application we present here uses the GFCM to build a detailed picture of the present state of electric grid operations and market outcomes, the model is designed to facilitate counterfactual study as well. The GFCM forms a modeling framework intended to aide in the formulation of ''what if'' questions regarding how the grid might operate under changing ambient conditions while harnessing evolving technologies.
Technical Note (NIST TN) - 2246
Report Number


Economics, Electricity, Generator Fleet, Infrastructure, Interoperability, Operations, Power Systems, Resilience, Smart Grid, Synchronous Inertia.


O'Fallon, C. and Gopstein, A. (2023), Generator Fleet Characteristics Model, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online],, (Accessed June 23, 2024)


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Created February 6, 2023