Why are you choosing the US for your data when there are countries already very close to 100% renewables? The UK for instance has all but phased out coal fired power generation.
According to data compiled by the U.S. Energy Information Administration, there are seven countries already at, or very, near 100 percent renewable power: Iceland (100 percent), Paraguay (100), Costa Rica (99), Norway (98.5), Austria (80), Brazil (75), and Denmark (69.4).
