Practically we will always have backup plants I suspect. But we don't need perfect, we just need better, plus redundancies. Gas is a common backup since it had

Practically we will always have backup plants I suspect. But we don't need perfect, we just need better, plus redundancies. Gas is a common backup since it had a fast spin up time, couple that with batteries to smooth out frequency and cover spin up time and life is good. I also want to point out that this is already going on, not just theory crafting. Solar and wind isn't just a good possibility, it is happening and in use right now. Batteries for grid stabilization is also an existing technology that is in practical use.