Building energy modeling tool systems and methods

A cloud-based building systems management apparatus comprising:

• a control center including a processor, the processor to execute instructions to configure the processor to generate configuration information for one or more facility environment controllers in communication with the cloud-based building systems management apparatus, the processor configured to implement at least:
• a modeler to generate a model of a target building infrastructure based on weather data, usage data, and building properties information;
• and
• a building energy simulator to simulate energy usage for the target building using the model and scenario parameters, the simulator to simulate a plurality of scenarios with respect to the model to determine the configuration information for the one or more facility environmental controllers at the target building, the simulator to calculate a value associated with each simulated scenario and facilitate comparison of the values to generate the configuration information corresponding to a selected value to be selected from the values associated with the simulated scenarios.