OPTIMIZATION OF FAÇADE ORIENTATION WITH BUILDING-INTEGRATED PHOTOVOLTAIC (BIPV) TYPE SOLAR GLAZING MADE OF MONOCRYSTALLINE SILICON IN INDOOR DAYLIGHTING AND ENERGY OUTPUT

• Main Author: Muttaqien Hermawan, Ikhwan
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/64943
• Institution: Institut Teknologi Bandung

Energy use in buildings contributes up to 40% of total global energy use and increases by 8-10% every five years. The high demand for electricity in buildings encourages the development of technology-based renewable energy sources to suppress climate change. Indonesia has enormous potential in developing renewable energy up to 442 GW and half of which is in solar power with 207,8 GWp. In addition to the large availability of sunlight, the ease of module installation makes solar panels the most likely renewable energy source to be applied in buildings. However, due to the limited area of building rooftops, rooftop PV installations cannot meet building electricity needs economically. Building-Integrated Photovoltaic (BIPV) is a relevant application of integrated PV in buildings which, besides providing electricity cost savings, can also increase the architectural attractiveness of buildings. As more and more office buildings use glass on their facades, generating electricity from windows is becoming a trend, and installing BIPV on windows has become the most promising approach for BIPV in high-rise buildings. In contrast to conventional PV installations on building roofs, vertical PV installations are significantly influenced by the building orientation, and the transparency of the PV directly affects the daylight performance inside the room. Study and analysis were carried out to implement BIPV windows in tropical climates using experimental and simulated measurement methods in energy output and indoor daylighting in four cardinal directions. This research was done by modeling a simple 2×2×1 m3 room with a PV solar window glazing made of Monocrystalline silicon 105Wp, placed in the CADL Building, Institut Teknologi Bandung, Indonesia. Simulations were carried out using the Grasshopper software on Rhinoceros to verify daily data and trends for the entire year. The measurement results indicate that North is the most recommended orientation for installing BIPV windows for tropical areas in the southern hemisphere of the equator. In contrast, West and East orientations are not recommended since the sun’s movement causes a significant difference in energy output and illuminance in the morning and in the afternoon.