There is more to consider than simple napkin math. There already isn’t enough lithium mining capacity on the planet to transfer the world to EVs and it is already not keeping up with demand. What do you think will happen if we want to provide back up power for entire countries with batteries? It’s not feasible.
https://en.wikipedia.org/wiki/Battery_energy_storage_system#/media/File:Average-battery-cell-price-b.png
It’s already happening
There is more to consider than simple napkin math. There already isn’t enough lithium mining capacity on the planet to transfer the world to EVs and it is already not keeping up with demand. What do you think will happen if we want to provide back up power for entire countries with batteries? It’s not feasible.