microgridnoun [ C ]
uk/ˈmaɪ.krəʊˌɡrɪd//ˈmaɪ.kroʊˌɡrɪd/an electricity grid system of electricity wires for a small area, not connected to a country's main electrical grid:
The area near the school is likely to be the centre for an experimental microgrid powered by biofuel or woodchips.