Bye
You really can not store AC power in any meaningful way.... and AC to DC, then back to AC for transmission.... that isn't efficient either.
The power system, likely looses about 25 to 40 percent of the energy from generation to your door in things like line loss, along with losses at transmission.
While I am not saying the OP's idea is good or bad, since power systems are run by governments, and they manage to mess it all up at least 3/4 of the time..... storing electrical energy isn't as easy as you would think.
Transmission and converting AC to DC and back to AC are completely different things.
Also batteries are wildly expensive.. like stupid stupid expensive. Storing the power is something only a noob would say.. I am sorry but it is true.