VERIFICATION OF THE RESIDENTIAL CO₂ EMISSION REDUCTION EXPECTED IN THE LONG-TERM ENERGY SUPPLY AND DEMAND OUTLOOK

Abstract

The Long-term Energy Supply and Demand Outlook suggests countermeasures for the residential sector such as making an energy efficiency standard compulsory for newly-built houses, installing high-efficiency water heaters. The Japanese government estimated reduction effect obtained by these countermeasures and asserts that the target value of CO2 emission reduction can be achieved. However, the estimation is based on a quite simple method, which is multiplication of reduction effect per unit by the installation number. In this study, a bottom-up simulation model verifies the reduction effect considering the difference caused by various factors such as climate condition, family composition, and building specification.