Renewable energy is:
Energy resources that are naturally replenishing but flow-limited. They are virtually inexhaustible in duration but limited in the amount of energy that is available per unit of time.
Some types of green energy include: Solar; Wind; Hydro and tidal/wave; Geothermal and Ocean thermal; and Biomass/Bioenergy/Biofeuls. Despite our knowledge of the need to turn towards Green Energy, as opposed to conventional energy generation, it continues to be viewed as alternative. There will be a time, though, when it will be mainstream -- either by necessity or choice.>>Read more »