They are building massive pumped hydro storage too. A lot of closed-loop PHS is being built by China. Closed loop PHS doesn't have same ecological issues as traditional dams, but is not as trendy as batteries and has almost same political issues as traditional dams in west. So, it is generally ignored.

https://en.wikipedia.org/wiki/List_of_pumped-storage_hydroel...

PV + storage is cheaper than nuclear:

https://www.lazard.com/perspective/levelized-cost-of-energy-...

(you have to compare cost of nuclear on first page with wholesale PV+storage energy on subsequent pages).

Storage cost is falling even faster than solar. Renewables + storage beats everything, hands down.