STUDY OF INDIRECT GHG EMISSION REDUCTION POTENTIAL OF SETIABUDI WWTP BY FLOATING SOLAR PV INSTALLATION

• Main Author: Frederick Widiono, Felix
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/84858
• Institution: Institut Teknologi Bandung

The water treatment industry, including wastewater treatment, is a significant contributor to global warming due to high electricity consumption. In Indonesia, 65% of electricity generation still relies on coal, which has high greenhouse gas emissions. Meanwhile, the water industry has potential for utilizing renewable energy, such as through the installation of Floating Solar Photovoltaic (PV) systems (FSPV). WWTP S in Java Island, located adjacent to S Reservoir with an area of 40,000 m2 , has this potential by utilizing the reservoir's surface area for floating PV system installation. The objectives of this study is to determine the electrical energy requirements of the WWTP, the FSPV capacity and its energy output, the use of FSPV energy by the WWTP, the reduction of indirect GHG emissions from switching the use of grid electricity to FSPV, and the economic feasibility of installing the FSPV. This study used simulations from the freely accessible Global Solar Atlas application to estimate the output of floating PV systems on the maximum allowable reservoir area regulated for utilization. The results show that a PV system with a capacity of 1.36 MWp can be installed, producing an average daily energy of 4,513 kWh. IPAL S itself requires 17,776 kWh of electricity per day, indicating that all energy generated by the PV system can be utilized by IPAL. Utilizing energy from the PV system over its 25- year lifespan has the potential to reduce greenhouse gas emissions from electricity use by 22.2%-23.9%, depending on various emission factor projection scenarios.