Abstract: Systems and methods for analyzing energy usage of a structure include reading data associated with the structure, determining the energy usage of the structure, conducting a thermal analysis of the structure, and generating/displaying the results of the energy analysis. The data associated with the structure includes basic information regarding features and aspects of the structure, devices associated with energy usage, and utility bills. Energy usage from occupant activity can be isolated from energy used for heating and cooling of the structure. Other embodiments include real-time monitoring and calculating of energy usage, energy efficiency, and savings from energy-based improvements.