Batteries and solar panels will not save us from an economic system that requires over-production and over-consumption.
Renewables make much more sense. At the experience curve for utility scale PV from 2010 to 2022, assuming that experience rate of 33.1% decline per doubling of cumulative deployment would continue, if the world were powered by PV the levelized cost of delivered power would fall to $0.003/kWh.
The problem is that though the marginal cost of the next watt-hour of electricity may be low you still have to pay the very real (and likely huge) costs of constructing and maintaining the reactors and generating plant. Investors will need to earn a return; the bonds payments will need to be made.