Abstract: An apparatus for electrical source sharing between a power grid, at least one local generator and a local load includes a power circuit, a data port and a controller. The power circuit is capable of effecting a plurality of source sharing configurations, including: a fist configuration in which the local load is fully powered by the power grid; a second configuration in which the local load is fully powered by the local generator; and a third configuration in which the local load is partially powered by the power grid and partially powered by the local generator. The data port is capable of receiving data from an external source. The controller is programmed to execute the following operations: receive data from the data port; determine a preferred source sharing configuration from the plurality of source sharing configurations, based on data received from the data port; and instruct the power circuit to effect the preferred source sharing configuration.