Men have long been accustomed to burning fossil fuels to produce energy. The fact that the climate is changing day by day and the demand for fossil fuels is increasing has become an alarming problem. Burning coal, oil and other fossil fuels is used to produce electricity, but this pollutes two vital elements like air and water in our environment. Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get Original Essay Renewable energy is an alternative source to produce energy and it has no negative impact on the environment and protects our environment. With a population of 163 million, Bangladesh is one of the most densely populated countries. Rapid urbanization fueled by stable economic growth has created enormous demand for energy. In Bangladesh, electricity comes from burning gas or fuel. The utility power sector in Bangladesh has a national grid with an installed capacity of 15,379 MW as of February 2017. The Bangladesh government plans to increase electricity generation and electricity demand in Bangladesh is expected to reach 34,000 MW by 2030. There is an ambitious target of generating 2,000 MW of electricity from renewable energy by 2021 and of which at least 10% would be from renewable sources including the solar energy system. To this end, the government is currently working on the installation of power projects based on solar panels connected to the national grid, which will have a capacity of 572 MW. Out of 2,000 MW of solar power, 1,000 MW would come from the rooftop system. There is an urgent need to use renewable energy in all possible forms and move towards the sustainable energy sector. The photovoltaic system is one of the most important and promising technologies capable of producing the electricity needed to meet the electricity demand around the world. Over the past decade, the photovoltaic industry has grown by more than 40% per year due to the decline in the photovoltaic system. There are two effective systems for designing solar photovoltaic power plants. One is a stand-alone system and the other is a grid-connected system. P. Karki et al. Perform analysis of grid-connected PV system in Kathmandu and Berlin using PVsyst software. In the simulation, it was found that Kathmandu produced more solar power than Berlin with the same system. YM Irwan et al. carry out an analysis study for a 150kW solar power plant. In the study we found that Cyprus has a high number of sunny days per year and therefore investing in a solar power plant is very effective. Shukla et al. carried out the design and analysis of the solar photovoltaic system on the roof of the MANIT hostel building and determined the payback period of 8.2 years. Raturi et al. investigated the grid-connected photovoltaic system for Pacific island countries through a case study of a 45 kWp GCPV system located at the University of the South Pacific (USP) Marine Campus in Fiji. Additionally, Dawn et al. showed India's recent developments in the solar sector. Matiyali et al. evaluated the performance of a proposed 400 KW grid-connected solar PV plant in Dhalipur. The performance ratio and several types of power losses were calculated. The performance ratio value obtained was 78.1% from the practical results of the solar PV plant. Keep in mind: this is just a sample...