THE ECONOMIC EVALUATION METHOD OF BUILDING ENERGY PERFORMANCE RETROFIT ON EARLY PHASE

摘要

The present invention relates to an economic evaluation method of energy performance in a building remodeling business. According to one embodiment of the present invention, the economic evaluation method of energy performance in a building remodeling business includes a step of setting an objective function; a step of calculating an alternative; a step of calculating the construction expenses and energy probability distribution on the alternative; a step of calculating the probability of a payback period based on the calculated the construction expenses and energy probability distribution; and a step of outputting the probability distribution of the calculated payback period. [Reference numerals] (AA) Pareto optimal operation time(alternative 1-N); (BB) Energy probability density distribution calculation relative to alternative 1-N; (CC) Construction expenses probability density distribution calculation relative to alternative 1-N; (DD) Calculate an investment payback period; (EE) Probability density distribution; (FF,II) Investment payback period; (GG) Check the investment payback period which is the largest probability; (HH) Cumulative probability distribution; (JJ) Check a cumulative probability value of a target investment payback period