University and hospital campuses, manufacturing facilities, and datacenters, with critical energy needs employ on-site power systems that operate in parallel with, or disconnected from, a utility grid. Traditionally deployed as backup power systems, policy makers, developers, and building owners are exploring how microgrids with renewable energy generation might serve to increase facility, and community, resiliency. We’ll explore microgrids and the movement toward DC nanogrids. We’ll also examine emerging microgrid ownership and finance models, and regulatory issues.