Yes, but, we depend on fossil fuels for far more than just energy. We still get most of our plastics from them, and most of our fertilizer, without which we can't feed most of the developed countries. And while renewables are great for stationary use, we still don't have anything with the energy density of fossil fuels for cars, shipping, air travel, and cargo. And, whether anyone thinks it's a good use or not, war is entirely, inefficiently, and intensely run on oil.

There are a lot of other issues entirely unrelated to power grid energy production we have to solve first, the most challenging being our own aggressive human nature. We're a long way from kicking the oil habit.