1. A method for managing a transmission/distribution power grid wherein the transmission/distribution power grid includes a plurality of Distributed Energy Resources (DERs) coupled to a plurality of power consumers, said method comprising: managing at an enterprise control module power flow parameters within the transmission/distribution power grid so as to stay within defined operating limits using self-altering and/or predictive calculations; receiving at one or more of a plurality of regional control modules power requests from an enterprise control module wherein each regional control module is associated with a region associated with a portion of the plurality of the DERs; and managing at each of the plurality of regional control modules DERs within its associated region.