Except it won't work. The intermittency problem of renewables doesn't make them cheaper - there is no low-cost solution to that. The intermittency makes energy more expensive. Further, their population is already shrinking. Labor costs will start to rise quite rapidly in Chain, making things more expensive.
Renewable penetration hasn't made energy cheaper anywhere where it is a significant portion of the supply grid.
Wrong. Storage has opex, because it has energy losses. Not all the energy that goes in can come out. 2nd Law and all that. On top of that, there will be maintenance and operating staff costs.