Efficient by what standard? The ones you listed? One of the largest negatives of nuclear is it's cost efficiency, namely it being pretty bad and not dropping,

Efficient by what standard? The ones you listed? One of the largest negatives of nuclear is it's cost efficiency, namely it being pretty bad and not dropping, compared to renewables > no technology exists at scale, particularly nothing that could be massively available and producing in the next couple of decade P2G? Hydrogen can be produced, stored and given back to the grid at scale. Do also keep in mind that it currently take decades before new nuclear power plants go from beginning the planning phase to producing energy (at least in the west), so it may be even worse for nuclear power Regarding germany's Energiewende: A large part is that the EEG-Umlage is very expensive while not helping much in the last decade. If you look at the increase in wind & solar, it has pretty much stagnated the last few years while costs didn't. It's just not a very good instrument. Additionally, new rules (at least for wind) decimated available land and the "Ausbaukorridor" (added in 2013) also ensured that there couldn't be much growth for renewables.