Solar systems can make peak power during the day, but any energy you’re not using at that moment is put back on the power grid and shared with your neighbors. Now the utility company does give you a credit (at a reduced price) for all the power you are making them. But how nice it would be to capture all the extra power you’re making.
And that is the beauty of Home Batteries, storing power, for when you need it!
Depends on system size.