Real-time Energy Management Information System (EMIS) that automates the process of mapping and managing energy consumption across a site, as it is being consumed. Real-time alerts, dashboards and emails notify decision-makers when energy consumption is above expected so that actions may be taken to drive down energy costs. We also provide rigorous models of energy consumption for certain asset classes, e.g., boilers, furnaces and heat exchangers. Models can also be based on historical data fitted to actual operations (heuristic).