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Methodology to Determine the Technical Performance and Value Proposition for Grid-Scale Energy Storage Systems

November 2012
Sandia National Laboratory
Energy Storage, grid benefits, grid-scale, renewable generation, technical performance

As the amount of renewable generation increases, the inherent variability of wind and photovoltaic systems must be addressed in order to ensure the continued safe and reliable operation of the nation's electricity grid. Grid-scale energy storage systems are uniquely suited to address the variability of renewable generation and to provide other valuable grid services. The goal of this report is to quantify the technical performance required to provide different grid benefits and to specify the proper techniques for estimating the value of grid-scale energy storage systems.