The National Energy Modeling System: A Large-Scale Energy-Economic Equilibrium Model

Steven A. Gabriel (), Andy S. Kydes and Peter Whitman
Additional contact information
Steven A. Gabriel: University of Maryland, College Park, Maryland 20742
Andy S. Kydes: Energy Information Administration, U.S. Department of Energy, Washington, DC
Peter Whitman: Pace Global Energy Services, Fairfax, Virginia

Operations Research, 2001, vol. 49, issue 1, 14-25

Abstract: The National Energy Modeling System (NEMS) is a large-scale mathematical model that computes equilibrium fuel prices and quantities in the U.S. energy sector and is currently in use at the U.S. Department of Energy (DOE). At present, to generate these equilibrium values, NEMS iteratively solves a sequence of linear programs and nonlinear equations. This is a nonlinear Gauss-Seidel approach to arrive at estimates of market equilibrium fuel prices and quantities. In this paper, we present existence and uniqueness results for NEMS-type models based on a nonlinear complementarity/variational inequality problem format. Also, we document mathematically, for the first time, how the inputs and the outputs for each NEMS module link together.

Keywords: Mathematical programming; complementarity: energy-economic application for the nonlinear complementarity problem; Government; energy policies: general framework for determining energy policies. (search for similar items in EconPapers)
Date: 2001
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Citations: View citations in EconPapers (41)

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