Geothermal Energy- The energy comes from steam, which was around during the early part of the 19th century. The geothermal liquid is injected into an underground chamber where the heat is recycled throughout the house. Since it is underground then the water stays at a constant temperature, so that the house stay the same. Some geothermal plants are around the world and they burn clean and are completely safe for the environment.
Wind power- This energy source is becoming more prominent, because it is completely clean and produces alot of energy. The wind pushes the turbines which in turn causes the electrical generator to produce electricity. This wind mills are usually located in large farm and help power large cities and grids. I feel as if this would be one of the most renewable sources of electricity that we can get. I mean wind, we get that all of the time and it completely recyclable.