Fossil Fuels and Renewal Energy

Men have been used to burning fossil fuels to generate energy from long time ago. It has become an alarming problem that climate has been changed day by day and the demand of the fossil fuels is increased. Burning coal, petroleum and other fossil fuels is used to produce electricity, but which pollutes two vital elements like air and water in our environment.

Renewal energy is alternating source to produce energy and it do not any bad impact to environment and keep safe of our environment. With a population of 163 million, Bangladesh is a one of the most densely populated country. Rapid urbanization fueled by stable economic growth has created a huge demand of energy. In Bangladesh, the electricity comes from burning gas or fuel. The utility electricity sector in Bangladesh has one National Grid with an installed capacity of 15,379 MW as on February' 2017

The Government of Bangladesh has plans to increase power generation and the demand for electricity in Bangladesh is projected to reach 34,000 MW by 2030.There is an ambitious target to generate 2000 MW of renewable energy electricity by 2021 and whose at least 10% would be met from renewable sources including solar power system. For this purpose, the government is currently working to install solar panel-based power projects connected with the national grid, which will have a 572 MW capacity Out of 2000 MW solar energy, 1000 MW would be come from rooftop system. There is an urgent need to employ renewable energy in every possible form and move toward the sustainable energy sector. Photovoltaic system is one of the most important and premising technology that are able to produce the electricity to meet the electricity demand of the whole world.

Since last decade, the photovoltaic industry grows more than 40% per year due to decrease in PV system. There are two effective systems for solar photovoltaic plant design. One is stand-alone system and other is grid connected system. P. Karki et al. do an analysis for grid connected PV system in Kathmandu and Berlin by the use of PVsyst software. In the simulation it was founded that Kathmandu is more solar energy produced than Berlin with the same system.

Y.M Irwan et al. do a study to analysis for a 150kW solar power plant. In the study we found that Cyprus has a high number of sunny days in a year so investment of the solar plant is very effective. Shukla et al. performed the design and analysis of rooftop solar PV system for Hostel building at MANIT, and determined the payback period of 8.2 years. Raturi et al. studied the grid connected PV system for Pacific island countries in case study of 45 kWp GCPV system located at the University of the South Pacific (USP) marine campus in Fiji. Further, Dawn et al. showed the recent developments of India in the solar sector. Matiyali et al. evaluated the performance of a proposed 400 KW grid connected solar PV plant at Dhalipur. Performance ratio and several types of power losses were calculated. Value of the performance ratio obtained was 78.1% from the results practicality of the solar photovoltaic power plant was discussed.

We found that PVsyst software is the best software for simulation of sizing, optimizing, loss analysis and financial analyses of a grid connected photovoltaic system. We calculate financial analyses and simulation with PVsyst V 6.43 software. Proper sizing and calculation of grid connected PV system is done for Hajee Mohammad Danesh Science & Technology University, Dinajpur, Bangladesh.