Abstract: A method for analyzing energy savings for a building is provided. The method includes receiving a historical energy usage and a weather data for a building, a set of operations parameters describing building operations and a set of building system parameters describing building systems. A baseline configuration is submitted to a first energy consumption simulation to determine a baseline energy usage profile. A calibrated configuration is determined from the baseline configuration and the historical energy usage. The calibrated configuration is submitted to a second energy consumption simulation to determine a calibrated energy usage profile. A hypothetical configuration is determined from the calibrated configuration and a set of energy improvement measures. The hypothetical configuration is submitted to a third energy consumption simulation to determine a hypothetical energy usage profile and report.

Abstract: A system and method for analyzing energy savings for a building is provided. The method includes receiving a schedule of occupied days, an occupancy behavior profile and historical energy usage data from which an hourly interval usage is determined. A set of occupancy thresholds is determined by season. Occupied days are determined from the set of occupancy thresholds and the hourly interval usage. The hourly interval usage is analyzed to determine occupied energy consumption in hourly intervals, occupied start and stop time savings, mechanical equipment savings and temperature setpoint savings during an occupied day. The hourly interval usage is also analyzed to determine unoccupied energy consumption in the hourly intervals and refrigeration savings, mechanical equipment savings, computer equipment savings, parking lot lighting savings, hallway lighting savings and temperature setpoint savings during an unoccupied day.