The Petrokimia Gudang 15B Rooftop Project in Gresik, East Java, aims to enhance energy efficiency and promote industrial sustainability. With a capacity of 633.6 kWp, it significantly reduces carbon emissions and operational costs through clean solar energy. The installation features LONGi Lr5-72HPH G2 550Wp PV modules for optimal energy yield and uses a Sungrow SG 125CX P2 inverter for reliable power supply, supporting the facility’s environmental commitment.