The process of finding new materials from existing materials need much less energy than what is needed for rare materials. Recycling one pound of the most common plastic used in water bottles called polyethylene terephthalate (PET) can conserve around 12,000 British thermal units of heat energy according to the Environmental Protection Agency . the process of recycle needs less energy by two- third than usual manufacturing . which help in reducing the damage of the usual power grid. That depend on burning fossil fuels.