Design and Analysis of Roof-Top Grid-Tied Solar Photovoltaic System in Textile Mill

The depletion of global fossil fuel reserves has prompted a search for alternative energy to meet current demands. Solar power offers a clean,renewable,and eco-friendly solution. Yet,standalone solar systems are limited by seasonal variations. To counter this,integrated grid systems combining solar and conventional energy are being embraced. Infrastructure Development Company Limited (IDCOL) estimates that utilizing solar energy from rooftops in Bangladesh's ready-made garments (RMG) and textile sector could yield 5000 MW. With over 7000 RMG factories and textile plants boasting ample rooftop space,about 400 MW could be generated using solar photovoltaic (PV) systems. Although Bangladesh's total renewable capacity is 649.72 MW (2.93% of the total),mainly from solar home systems,the proposed rooftop initiatives promise reduced costs,heightened sustainability,and efficient space utilization. The paper presents the design and financial analysis of a major textile factory,unveiling substantial power usage and costs. It suggests a system of an average of 2,657,933 units per year resulting in a yearly saving in the electricity bill. The expected payback period is 4 years. Furthermore,performance analysis and CO 2 emission reduction for an on-grid system have been explained in this paper. The initial cost of the system was calculated as 71,341,200 BDT and the payback period is 4 years. In addition,CO 2 reduction in 25 year life span will be 56,481.075 tons.