Battery Energy Storage Systems for Grid Applications-Results from the Field

Dr Jud Virden
Associate Laboratory Director
Energy and Environment Directorate
Pacific Northwest National Laboratory

By Dr. Jud Virden, Associate Laboratory Director, Energy & Environment Directorate, Pacific Northwest National Laboratory, USA.
Over the last several years, large battery energy storage systems (BESS) have been deployed for a variety of grid applications.  For these applications, BESS are expected to follow signals corresponding to power intensive and energy intensive applications for long periods of time without degradation of performance. This presentation will discuss the performance of five BESS that are operational for a variety of grid applications. The batteries systems range in size from 5MW-1.14MWh to 2MW-8.8MWh. The BESS represent both lithium ion and vanadium redox flow systems. We will discuss the performance of the battery systems for arbitrage, regulation, load following and other grid applications. This presentation will also discuss the stacking of applications,  that return the greatest value to the stakeholders based on application-specific BESS performance and degradation.


Jud W. Virden Jr has served since 2011 as the Associate Laboratory Director for the Energy and Environment Direc­torate at Pacific Northwest National Laboratory. He leads about 1,000 scientists, engineers, and professional staff in delivering science and technology solutions for the nation’s energy and environmental challenges. He is responsible for a research portfolio that includes improving electric infrastructure resiliency and reliability, reducing the cost and increasing the performance of energy storage technologies, increasing buildings energy efficiency, advancing both renewable energy and nuclear energy. He is a AAAS fellow and a member of the Washington State Academy of Sciences. He currently serves on the board of the American Council for an Energy Efficient Economy and CleanTech Alliance of Washington. He participates in advisory committees at the Georgia Tech Strategic Energy Institute, Michigan Memorial Phoenix Energy Institute and University of Washington College of Engineering. He holds a bachelor’s degree and a doctorate degree in Chemical Engineering, each from the University of Washington.