The energy storage analytics team at PNNL is currently evaluating storage systems with a combined 25 MW / 103 MWh of capacity at twelve sites across the U.S. We are evaluating lithium-ion and vanadium redox flow batteries in Washington State, demand response programs in Hawaii, microgrids in Massachusetts, and pumped storage hydro systems in Washington State, California, New York, and Hawaii. We have developed a framework and a set of tools for evaluating the economic benefits of storage systems, characterizing their performance during economic operation, and developing real-time control systems in order to enhance the benefits actually achieved once the systems are installed. This presentation will provide an overview of the lessons learned through a number of recent engagements on each of these topics and will demonstrate how these lessons are being applied in filling gaps in the industry knowledge base.   Speaker(s): Patrick, Kendall Location: Seattle, Washington