Comprehensive Evaluation of the Effect of Energy Saving Technologies in Residential Sector

Abstract

This paper proposes a comprehensive model to examine potential energy saving and CO₂ emission reduction in residential sector through architectural enhancements and facility improvements. First, hourly cooling and heating demand in accordance with the insulation level is calculated using SMASH software. Next, thermal energy and electricity supply system model is used to estimate the electricity, gas and kerosene requirements by various systems in residential buildings to cover the air conditioning demand and other demands depending upon the type of household. Finally CO₂ emission reduction by the energy saving technologies is calculated using the estimated energy consumption and the CO₂ emission intensity of electricity obtained using the power generation best mix model. The economic efficiency and potential CO₂ emission reduction by energy saving technologies in the residential sector of Tokyo are evaluated with this approach.