Adoption. By offering a standalone solution that can be adopted at the grassroots level they hope to drive adoption faster than any other way.
This is why they're including batteries instead of telling customers to feed excess energy back into the grid. Feeding into the grid is technically more efficient and doesn't require all those batteries, but does require the headache of interfacing with your local utility.
This is why they're including batteries instead of telling customers to feed excess energy back into the grid. Feeding into the grid is technically more efficient and doesn't require all those batteries, but does require the headache of interfacing with your local utility.