Utility Analysis

In the utility impact analysis, EES analyzes the changes in electric installed capacity and generation that result for each proposed efficiency standard level. The utility impact analysis uses a variant of NEMS, which is a public domain, multi-sectored, partial equilibrium model of the U.S. energy sector. (For more information on NEMS, refer to the U.S. Department of Energy, Energy Information Administration documentation. A useful summary is National Energy Modeling System: An Overview 2003, DOE/EIA-0581(2003), March, 2003.) EES uses a variant of this model, referred to as NEMS-BT, to account for selected utility impacts by comparing model results for a reference case to cases in which energy use is decremented to reflect the impact of potential standards. (Because this analysis entails some minor code modifications and the model is run under various policy scenarios that are variations on DOE/EIA assumptions, DOE refers to it by the name NEMS-BT, as BT stands for DOE’s Building Technologies Program, under whose aegis this work has been performed.)