The transition towards a more resilient, flexible, and sustainable electric grid is underpinned by the integration of Battery Energy Storage Systems (BESS), a crucial technological advancement that stands to redefine how energy is stored, distributed, and utilized across the grid. The Association of Edison Illuminating Companies (AEIC) Center for Operational Excellence has emerged as a pivotal platform, uniting the voices of the utility industry to address the multifaceted challenges and opportunities presented by BESS.