C2ES: Center for Climate and Energy Solutions, Mar. 2017, Doug Vine, et. al.
https://www.c2es.org/docUploads/microgrid-momentum-03-2017.pdf

"When Hurricane Sandy cut off power to millions of homes and businesses in the Northeast, a few areas, mostly parts of universities, kept the lights on using their own power generation systems. This ability to sustain electricity service during widespread natural disasters is one reason for the growing interest in microgrids. But they offer other important benefits as well. By increasing efficiency, integrating renewables, and helping manage energy supply and demand, microgrids can reduce greenhouse gas emissions and ave energy. For utilities, microgrids can ensure power reliability in remote areas. Microgrids also appeal to those who want to disconnect from utility bills."