Fusion could obviate the need for grid-wide storage systems which would be a huge advantage.
Levelized Full System Costs of Electricity (LFSCOE) does include storage and suddenly nuclear fission gets a lot more competitive:
Fissions reactors that don't have incredibly strict and expensive regulation are already pretty unreliable, and they're operating within the bounds of known materials rather than an order of magnitude outside of them.
Even the mythical 100% uptime nuclear reactor still needs just as much storage for abritrage because it is so much more expensive.
"All the problems associated with" what? Modern batteries don't burst into flame. Anyway the overwhelming bulk of storage is not and will not be chemical batteries.
Economic challenges of quickly building grid-scale battery storage , battery production for the entire globe, NIMBY's etc.
> Modern batteries don't burst into flame
they literally do
> the overwhelming bulk of storage is not batteries
Well overwhelming bulk is a high bar and storage is geography dependent. Germany f.e. can't build as much pumped storage as Australia and Australia built a large amount of battery storage vs PSH.
Modern batteries do not burn. Teslas do.
https://arstechnica.com/gadgets/2022/12/recycling-firm-fined...
Lithium is anyway not favored for use in utility-scale storage, where its light weight offers no compelling value. Up-and-coming chemistries include iron-air (no explosions), calcium-antimony (no explosions), and bromine-zinc (no explosions). Hundreds of other chemistries are available.
That's not sufficient for pumped storage at scale, but Germany is mostly focusing on hydrogen for now.