Renewable energy sources needs to be supported by power plants that can produce constantly. The only clean option is nuclear and hydro. Sweden has developed a safe storage which is used to stored used fuel.
> Renewable energy sources needs to be supported by power plants that can produce constantly.
Varying power sources need to be combined with adjustable power sources. So do constant sources, unless you want to force consumption to correspond to availability. Shutting off nuclear plants and going fully renewable would require bringing more adjustable sources online, though. Hence the quest for better storage technologies.
EDIT: I misread your comment. I thought you were arguing that "unclean" power plants are nessecary. However my point about not needing nuclear still stands.
Varying power sources need to be combined with adjustable power sources. So do constant sources, unless you want to force consumption to correspond to availability. Shutting off nuclear plants and going fully renewable would require bringing more adjustable sources online, though. Hence the quest for better storage technologies.