> You need an energy storage solution for nuclear too, unless you want to heavily overbuild, which raises it from too expensive to stupid expensive.

Why do you energy storage for nuclear? As someone who lives in Ontario, Canada, where 8-9 GW of nuclear power chugs along continuously:

* https://www.ieso.ca/en/Power-Data

I'm not sure what needs to be stored. We just bring online hydro and gas as needed (along with having fluctuating wind).

Hydro and gas both involve storage (of water and methane), and both can be, and are, used with renewables and/or nuclear to fill gaps between supply and demand.

> You need an energy storage solution for nuclear too, unless you want to heavily overbuild, which raises it from too expensive to stupid expensive.

No, nuclear lowers baseline you need. If 50% of your energy is produced by nuclear, you just need to build the rest like your country is 50% smaller.