Appendix for ECS Enterprise Edge Reference Architecture Guide What to read next Digitalization of Power Substations - ESXi Real-Time Configuration, Tuning, and TestingA 'real-time' capability is needed to address the needs of power management software running in substations. This guide addresses the performance requirements of the virtual machines, the configuration of these virtual machines, and the virtual protection relay (VPR) software currently being developed to run at the power substation. Background for Utility Use CasesA list of power utility use cases leveraging Enterprise Edge.