There are many forms of renewable energy . Most of these renewable energies depend in one or another on sunlight. Wind and hydroelectric power are the direct result of differential heating of the Earth’s surface which leads to air moving about (wind) and precipitation forming as the air is lifted.
Solar energy is the direct conversion of sunlight using panels or collectors. Biomass energy is stored sunlight contained in plants. Other renewable energies that do not depend on sunlight are geothermal energy, which is a result of radioactive decay in the crust combined with the original heat of accreting the Earth, and tidal energy, which is a conversion of gravitational energy. Growing electric demand in the Bangladesh .we would like to reduce our dependency on foreign fossil usage. Energy intensive manufacturers across all economic sectors to improve their operating efficiency and bottom line performance reduce levelized cost of electricity for energy –intensive manufacturers.