Originally Posted by **********

That's the idea. One of the reasons why solar is still expensive is that storing the energy is expensive. The new batteries are a lot cheaper.

From what I understand, the batteries work like this : Sunlight charges the batteries during the day, and your house switches to battery power at night. Done right, this means never having to rely on the grid, or at least, relying on the grid of much less of the time.

If you don't have solar power, then home owners can still use the battery. The battery charges at night when electricity is cheaper, and then our house drinks battery power during the day.

It seems like a great idea.