The Energy Management System Engine 2802 can be configured to process the real-time data output, the predicted data output, historical data output and forecasted aspects about the operation of the electrical system 102 to generate a user interface that can convey an operational state of the electrical system 102 to a user (i.e., electrical system 102 owner/system administrator/operator). In one embodiment, the operational state can be the real-time operational performance of the electrical system 102. In another embodiment, the operational state can be the predicted operational performance of the electrical system 102. In still another embodiment, the operational state can be a historical data trending display of the historical operational performance of the electrical system 102.