Microgrid

A microgrid is a local electrical grid with defined boundaries that acts as a single controllable entity, ranging in scale from one building to an entire community, and made up of local generation such as solar, wind or fuel cells, local loads, energy storage batteries and a point of common coupling to the wider grid. It can run connected to and synchronized with the main grid, or disconnect and operate on its own in island mode, switching between the two for technical or economic reasons or to keep power flowing during an outage on the main grid. Microgrids are used on campuses and other institutions, for rural electrification, at military installations that need energy independence, and in commercial, industrial and community settings, letting their users add solar and wind generation while still keeping the local grid stable. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/