microgrid currently under construction in Venice, Italy, is part of a plant for testing quasi-zero-emission processes. It has a 400-V ac bus and works islanded and connected. It includes three renewable-source generators and five energy storage (ES) systems (ESSs), based on lithium (Li), lead (Pb), sodium (Na), vanadium, and hydrogen. The hierarchical control uses a master system (Li battery) and slave systems. An energy management system (EMS) with a supervisory-control-and-data-acquisition-like architecture controls the microgrid, providing such features as anti-islanding, lowvoltage ride through, and black start. The EMS performs acquisition, processing, and storage of the data produced by power network analyzers. An advanced human interface ensures flexible operation management and