HEAT INSULATION PERFORMANCE CALCULATION DEVICE, ENERGY MANAGEMENT SYSTEM, CALCULATION METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a heat insulation performance calculation device calculating heat insulation performance and being capable of notifying a user of degradation information of the heat insulation performance, to provide an energy management system, to provide a calculation method, and to provide a program.SOLUTION: A heat insulation performance calculation device includes: an internal heat generation calculation section; an air conditioning heat quantity calculation section; a space temperature change heat quantity calculation section; an external heat calculation section; and a heat insulation performance calculation section. The internal heat generation calculation section calculates internal heat generation. The air conditioning heat quantity calculation section calculates a heat quantity of an air conditioner. The space temperature change heat quantity calculation section calculates a temperature change in a space. The external heat calculation section calculates heat from the outside on the basis of the internal heat generation, a heat quantity of the air conditioner, and the temperature change in the space. The heat insulation performance calculation section calculates heat insulation performance of the space from the outside of the space on the basis of the heat from the outside, a wall area of the space, a temperature outside the space, and a temperature in the space.