12 GWh is a fraction of a single factory's output from a single year. We are producing >50GWh total for storage per year, and the only reason more of it isn't going to the grid is that grid storage is a much less lucrative use of our storage capacity compare to cars, which have higher margins.

The entire industry is growing at 10x capacity every five years!

Don't forget that this single 1GW of nuclear took more than a decade.

We simply can not scale nuclear to meet our needs, it is not a technology that scales well at all.

For example, we have roughly 100GW of reactors in the US rapidly reaching their end of life. Even if the industry put all its effort in rebuilding fast enough to replace existing reactors, it would require a scale up that we can't possibly imagine right now. Meanwhile, we are already scaling storage, by building factory after factory.