Abstract: The present invention relates to an integrated thermal energy control system for heating and cooling simultaneously or separately a plurality of hot or cool working units, the hot and cool working units corresponding to hot and cold appliances and energy units customarily performing a supporting fuction in a dwelling design or being an appliance customarily used in a structure or a household. To heat or cool these working units, a heat pump is provided and has associated therewith a primary fluid circuit means having a working fluid for heating and cooling a fluid contained in two heat exchangers, the heat exchangers being referred to as a hot heat exchanger or a heat transfer tank and a cool heat exchanger or a cool transfer tank.