Evaluation Model to Calculate Duplicated Effect of CO₂ Reduction Countermeasures of Commercial Buildings Sector

Abstract

Concerning CO₂ reduction effect from the commercial buildings, the method for evaluating multiple effects of CO₂ reduction countermeasures was constructed. The model made in this research combines building energy load model, air conditioning system evaluation model and building stock quantity stochastic model. This model can calculate the CO₂ emission of commercial building sector of Japan. Using this model, we evaluate the difference of the reduction effect in two cases; first case is the case in which CO₂ reduction countermeasures individually evaluated and piled up each effects; second case is the case in which the mutual influence of the CO₂ reduction countermeasures considered. From this calculation, the difference of both reduction effects was 400,000t-CO₂/year, and this model is effective for the evaluation of the more accurate CO₂ reduction effect.