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The Progression and Challenges of Grid Integration of Energy Storage Systems


Battery Energy Storage Systems (BESSs) can accommodate an extensive variety of functions, rendering them a viable solution to enhance grid resilience and enable further penetration of renewables. However, the current capital cost, cycle life and efficiency of storage technologies, although improving, remain shy of the threshold of single application use cases making economic sense. At this point, only stacked applications operation can offer economic feasibility. Stacked benefits can be achieved through controlling active and reactive power dispatch of a BESS to achieve multiple value streams from a single system.  While this is done to maximize grid benefit, it is imperative that battery life is minimally compromised so as not to overshadow the additional value.

While control techniques are progressing in strides, the practice of identification of points on the electrical system where the need for such functionality is greatest, remains immature. This presentation provides an overview of the following:-


  1. Capabilities of Grid Tied ES Systems
  2. Applications of Grid Tied ES Systems
  3. Methodologies deduced by Duke Energy to identify grid tied ES needs.



Sherif Abdelrazek, Ph.D., PE
Lead Engineer
Duke Energy

Dr. Sherif Abdelrazek received his B.S. degree in electrical power and machines engineering from Ain Shams University, Cairo, Egypt in 2010 and the M.S. and Ph.D. degrees in electrical engineering from the University of North Carolina at Charlotte, in 2015. Currently, Dr. Abdelrazek is working with Duke Energy’s Distributed Energy Technologies group leading the regulated utility’s energy storage and microgrid engineering team. Dr. Abdelrazek currently holds two grid tied energy storage systems control focused patents and multiple IEEE publications.