Electric test & development centers require flexible series and parallel distribution of DC power throughout a lab for the loading and generating energy storage systems.  These four quadrant high power systems must be flexible, convenient, and safe in their programmability and directing of power.  The power networks must be able to program and carry power to multiple strategic locations within the facility. The source power supplies must provide smooth adequate bandwidth DC power for accurate simulation.  Software should contain a convenient easy to use programming layer, and a robust protection layer.  Controls should provide positive simple switching of high current and voltage contactors absent of any chatter.