Solar and wind mean you need batteries (can’t do off-peak without it). This means you still need peaker plants. Even if you accelerated battery technology drastically (which I’d say is already at max R&D speed mostly), you’re looking at some fundamental challenges getting the precious materials (total volume/cost and also energy required to do the mining). Finally, my understanding is that solar and wind can’t actually be used in some energy-intensive industrial processes because they can’t generate enough heat. This means those power needs are still powered by traditional fossil fuel power plants (and too expensive to use just for the industrial purpose so it’s actually part of the energy mix for good).

Solar and wind are important parts of the energy mix and.OF COURSE we need them. Nuclear is where the bulk of the focus needs to go though to actually decarbonize because it can handle literally every use case that fossil fuels do but cheaper, safer and less polluting.