From the emissions POV it's not fictional at all, since the marginal electricity use is fossil based. All fossils use is eating at the same global emissions quo

From the emissions POV it's not fictional at all, since the marginal electricity use is fossil based. All fossils use is eating at the same global emissions quota we can efford to stave off the worst climate catastrophe. (Or if in some corner of the US renewables production is reduced before fossil sources when load lightens, that's even a bigger wrong)