1. A method of controlling an energy delivery system, the method comprising: providing an energy management system (EMS) at an Independent System Operator (ISO) control center, the EMS having an automatic generation control (AGC) system including a load frequency control (LFC) module; providing one or more communication paths between the AGC of the EMS and each one of one or more electrical power generating resources remote from the EMS; executing two or more performance standard functions implemented within the LFC module using input data regarding the energy delivery system, wherein at least one of the performance standard functions is defined to be dependent upon another of the performance standard functions; generating solution results based on executing the performance standard functions; and transmitting instructions to implement corrections, based at least in part on the solution results, via the one or more communication paths to at least one of the one or more electrical power generating resources remote from the EMS.