The Sealed Solar Battery stores the extra solar energy your panels produce that you don't immediately use, so you can draw from it later.

See, solar panels produce the most electricity during the middle of the day, which also happens to be the time when your home uses the least amount of electricity. With a regular grid-tied solar system, that excess solar energy gets sent back to the utility grid.

When solar panels are paired with a home battery, however, that excess electricity goes into the battery instead of going to the grid. Then, when the sun goes down and your panels aren’t producing electricity anymore, you can use the energy you have stored in your battery - instead of paying for electricity from the utility.

This means you get to power your home with all of the clean, renewable solar power your solar panels produce no matter what time of day it is.