Transmission lines can act like storage when there is PV to the east or west of you. This doesn’t remove the need for storage, but can dramatically reduce it.

The old model of cheap peaking power plants and cheaper base-load power is equivalent to cheap peaking power + cheap but inconsistent green energy. It’s a very complicated optimization problem to work out the optimal mix of locations and quantities to of each, but price signals can help assuming you haven’t completely distorted the market.