Modeling of Battery Energy Storage in the National Energy Modeling System

The National Energy Modeling System (NEMS) developed by the U.S. Department of Energy’s Energy Information Administration is a well-recognized model that is used to project the potential impact of new electric generation technologies. The NEMS model does not presently have the capability to model energy storage on the national grid. The scope of this study was to assess the feasibility of, and make recommendations for, the modeling of battery energy storage systems in the Electricity Market Module of the NEMS. Incorporating storage within the NEMS will allow the national benefits of storage technologies to be evaluated. MODELING OF BATTERY ENERGY STORAGE IN THE CONTENTS NATIONAL ENERGY MODELING SYSTEM iv CONTENTS Acknowledgments Sandia National Laboratories (SNL) would like to acknowledge and thank Dr. Christine E. Platt of the U.S. Department of Energy’s Office of Utility Technologies for the support and funding of this work. Thanks are also due to Paul C. Butler and Abbas A. Akhil of SNL’s Energy Storage Systems Analysis and Development Department for providing valuable technical review before the final study was published. The principal investigators for this study were Shiva Swaminathan, William Flynn, and Rajat Sen of Sentech, Inc. MODELING OF BATTERY ENERGY STORAGE IN THE NATIONAL ENERGY MODELING SYSTEM CONTENTS