The preferred solution will be modular and scalable in respect to power as well as source/load configuration. The grid emulator must support power regeneration capability and be fully bi-directional. AC and DC Grid emulation is required; however, this capability can be supported by dedicated module for either mode. Operation of the modular systems should be supported by a user configurable remote HMI. The specific items and any specifications that the University isseeking are listed below. Items offered by the Vendor must meet or exceed the listed Specifications for an AC/DC Grid Emulator for research and development of grid enhancing technologies. AC Output Modes: 4 Quadrant Grid Forming (voltage Source 4 Quadrant Grid Following (Current Source/Sink) Configurations: 3-phase AC, 1-phase AC Minimum Power per Module 50 kVA Minimum Installed Power 180 kVA (quoted power capacity)