Exactly. It then also starts to make local storage (like powerwall) more interesting. When your PV generates a lot, prices will go down so better store the excess for times with higher prices.
And when you don't generate PV power but can still store, you buy cheap also to use when prices go up.
If there is also a dynamic price for using the grid, that usage will also spread.
If there is also a dynamic price for using the grid, that usage will also spread.