Abstract: A method for performing energy management for a building includes generating a stack of energy loads representative of a plurality of building energy loads. The energy loads are prioritized from highest priority energy loads to lowest priority energy loads. The prioritized energy loads are then compared to a building power threshold. The lowest priority energy loads are shed until a sum of remaining energy loads is equal to or less than the building power threshold. The remaining energy loads are serviced. The processes of prioritizing the energy loads, comparing the prioritized energy loads to a building power threshold, and shedding the lowest priority energy loads is repeated in response to changes in circumstances affecting the building.

Abstract: A microgrid is disclosed which includes a number of electrical loads and a number of potential grid forming sources. The potential grid forming sources can include an electrical grid, PhotoVoltaic (PV) system, energy storage system, and a generator, among potential others. The microgrid can operate in islanded mode. A controller can be used to control the powered state of the electrical loads and potential grid forming sources through use of a priority list of actions in which the controller determines whether adding or removing electrical loads will alleviate a power imbalance. In some forms the controller can tally the electrical loads by considering a potential power source (such as one of the potential grid forming sources placed in a mode to provide power to the microgrid) as a negative load. A validity check can be provided in the priority list to assist in determining whether an action can be taken.