BUILDING INTEGRATED PHOTOVOLTAIC DESIGN USING THIN FILM AND ITS EFFECT ON ELECTRICITY CONSUMPTION FOR AIR CONDITIONING SYSTEMS

• Main Author: Johar Raditya, Alfonsius
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/74077
• Institution: Institut Teknologi Bandung

The use of glass material in the facade of the building provides the advantage of natural lighting so that electricity consumption during the day can be reduced. In addition, using glass material on the facade of the building will improve the aesthetics of the building because it looks more magnificent. Besides these advantages, the use of glass materials that are not appropriate can result in an increase in temperature inside the building. The energy consumption of high-rise buildings for air conditioning systems reaches 40% of the total energy, while windows contribute 60% of the energy used by buildings. The development of thin film, which is a thin solar cell technology, is widely applied in everyday life. By using thin films on building glass using the Building Integrated Photovoltacs (BIPV) concept, the consumption of electrical energy for air conditioning systems can be reduced by the presence of electrical energy produced by thin films. The choice of thin film is based on the Overall Thermal Transfer Value (OTTV) standard for green buildings of 35 W/m2. Based on the results obtained through simulations, the use of thin films on building facades can generate 1,534,134 kWh or more than 50% of electrical energy for air conditioning systems in one year. The use of semi- transparent thin film also saves electricity for the lighting system, although it is 2.1% lower when compared to high reflective glass material. From a financial standpoint, a benefit cost ratio of 1.26 is obtained, so that the benefits obtained are greater than the required expenses. The Levelized Cost Of Electricity (LCOE) value obtained is IDR 914.59/kWh, which is cheaper than the billed electricity rate. The reduction in carbon emissions produced by the system in one year is 1227 tonnes of CO2.