A commercial microgrid with battery energy storage dynamics and refrigeration dynamics of a supermarket are considered as a smart building system where the time varying electricity price of the main grid is considered in the objective. The sems consists of power forecasting module energy storage system ess management module. Energies article smart energy management system of environmentally friendly microgrid based on grasshopper optimization technique yehia gad 1 hatem diab 1 mahmoud abdelsalam 1 and yasser galal 2 1 department of electrical energy engineering arab academy for science technology and maritime transport cairo 12577 egypt. 
				
			
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