Present world is moving fast towards development of civilization. Industries, factories, power plants, various government institutions, scientific institutions, private organizations are growing up on the basis of available natural energy sources. However, these sources are limited and expensive. CO2, CFC and other harmful gases are being produced through the utilization of these sources. Air is being polluted through these gases. So renewable energy will be the best solution. Developed countries are searching for newly alternative energy sources to minimize the pressure on natural sources like gas, oil, coal etc. Developing countries like Bangladesh are also trying to utilize different renewable energy sources to fulfill their growing demand. Bangladesh is a small country with a vast population. People have been suffering from insufficient electricity for many years. To meet the energy crisis Bangladesh has been experienced to renewable sources like biogas, bio-fuel, solar energy, wind energy, tidal energy, geothermal power, hydro power etc. In this paper we have tried to analyze about renewable sources of the country. Here we have identified the utilization of renewable sources and their benefits. This paper also belongs to subject that how far renewable energy can be treated as an ideal solution of economic development.