Which supports my point as to why renewables arent yet ready. We cant turn off the others to make use of renewables.
True that. And true that on a natural gas plant being more scalable (turn on in hours) than a nuclear plant (turn on in days). But even if we had a perfectly scalable fossil fueled plant (I guess a natural gas fueled plant is the closest), there's still the matter of cost.
It's simply too costly to build a fossil fueled plant to be used only half the time. If the fossil fueled plant has to be powerful enough to provide all the power needed at any moment the sun is down and/or wind is calm, it's a costly investment for something to be used maybe half the time (turned off or way down when the sun is out). Why build two plants: one solar plant and one natural gas plant, when you can build just one?
Keep in mind that I'm not anti-solar. I like my solar system at my property. It works well for me in a decentralized manner. But to be honest, the only reason it's paying for itself is because the Dims make power and natural gas too expensive from the utility companies.