You linked the same study for 5 times in this thread - you still misrepresent it's focus. The study concerns itself with the influence of social acceptance and how that reflects on the cost and efficiency of 'going green'.
I accept Fraunhofer’s technical modeling: they explicitly size ~500–750 GW of PV+wind by 2050 (≈6–9× average load) and still keep ~100–150 GW of flexible gas turbines plus sizable batteries for reliability (pp. 5–7). They target ≥95% cuts in energy-related CO₂ vs. 1990, but that still leaves a non-zero footprint—nowhere near France’s nuclear-heavy intensity (p. 11). Where I part ways is economics: today’s ~40 ct/kWh retail reality makes their rosy cost outlook look detached from how this overbuild-plus-backup approach plays out on the ground. I can appreciate Fraunhofer’s technical simulations—they’re excellent at that—but I’m street-smart enough to separate modeling optimism from economic reality, and that’s a distinction worth keeping in mind.
Maybe some street smart and “nuanced” thinking is something to consider? :-)