They are a popular backup option for schools, shelters, hospitals, sewage treatment plants and other mission - critical facilities in the case of a storm or natural disaster. (entrepreneur.com)
The latter includes residential solar PV as well as backup units in critical facilities such as hospitals. (energync.org)
The ability to store energy also can make it possible for buildings and other critical facilities to continue to function in the event of disruptions on the power grid. (nyserda.ny.gov)