Please note we don't have any energy mega-storage here and we don't need it. PV doesn't work at night, but wind, hydro and gas do. You can attribute any fictional needs you want to no-nuclear, that isn't going to change the outcome.
You seem to overlook that both hydro and gas use mega energy storage too.
One of your own posts is about the risk of a hydro power dam in your country. The amount of water behind the dam has a shitload of energy stored in it. If the dam breaks the havoc the water can wreak is enormous. Sure the aftermath is not as lasting as from nuclear, but still.
Gas needs to be stored in tanks and is transported through pipes. Both are potential hazards. Again, no long lasting effects after an event, but it can still kill many people.
And what about Groningen in the Netherlands, where they have earthquakes caused by the extraction of gas.
Everything humankind does in the race to improve our way of living brings risks with it, only to be seen in a later stage and then new actions are taking to counter the original risks, bringing new risks, and so on.
Take food and (medical) drugs safety. Oh sugar is bad, lets replace it with something synthetic, oh no, the synthetic stuff causes other illnesses, lets find something else to replace it with.
What about the thalidomide scandal (Softenon) or any of those other medical failures.