A grid-tied electrical system is a semi-autonomous electrical generation or grid energy storage system which links to the mains to feed excess capacity back to the local mains electrical grid.grid energy storage system which links to the mains to feed excess capacity back to the local mains electrical grid.

A key concept of this system is the possibility of creating an electrical micro-system that is not dependent on the grid-tie to provide the high level of service quality which is often delivered by a traditional mains supply.  Know More