The energy recovered from the alternative sources is known as the green energy.Electricity requirements of the world including India are increasing at alarming rate and the power demand has been running ahead of supply. It is also now widely recognized that the fossil fuels (i.e., coal, petroleum and natural gas) and other conventional resources, presently being used for generation of electrical energy, may not be either sufficient or suitable to keep pace with ever increasing demand of the electrical energy of the world. Also generation of electrical power by cold based steam power plant or nuclear power plants causes pollution, which is likely to be more acute in future due to large generating capacity on one side and greater awareness of the people in this respect.The recent severe energy crisis has forced the world to develop new and alternative methods of power generation, which could not be adopted so far due to various reasons.Introduction:-In India more than 1,00,000 villages are in darkness due to the lack of electricity. We know that the world also will dark within a 20-30 years for the continue usage of the non-renewable energy resources. So all over the world are turned into the green energy.Green energy is nothing but the alternative energy resources like the solar, wind, geo-thermal, tidal power and others.First we have to concentrate on our villages. Because we donâ€™t have the potential to generate or supply due to the GRID SYSTEM of India (except Tamil Nadu). We can grow the darkened villages into bright. We give some ideas infront of your knowledge.