Feasibility study of copper indium gallium (di)selenide (CIGS) for condominium in thailand

Abstract

This research was to study the feasibility of CIGS for condominiums in Thailand by studying the energy consumption of building which divide by behavior of users which interested in day time users and night time users. Then study approach and feasibility to apply CIGS for condominiums by consider energy consumption and economic efficiency of installation CIGS for energy conservation. The result showed that when installed 110 watts/m2 of CIGSs on windows in a room type can be provide electricity 2.51 kWh per day, 2.81 kWh per day and 3.75 kWh per day which can be represented 40 percent of the total energy consumption. In other word, can be reduce energy supply from grid per month 75.30 kWh, 84.3 kWh and 112.50 kWh. While investment cost per square meter of CIGS is about 23,000 - 35,000 baht which equivalent to 3 percent of total condominium price that mean payback period is about 8 years. Although CIGS is not able to provide all of electric consumption in building but from the assessment of economics found that there is a very interesting to investment, it should be interested policy for the government to enforce condominium to install CIGS for sustainable development.