The floor squeegee is similar to the window squeegee but has a long handle like a push broom, used to clean floors after they have been sprayed with water or soap, to push the water into drains.
SolarCity offers a 9-year Powerwall lease for $5,000 when part of a rooftop solar panel installation and financing contract. To buy and install the battery outside of financing a solar deal, the price is $7,140.
The home stationary battery will be called the Powerwall, and it will cost $3,500 for a 10kWh unit. That unit is optimized to deal with serving a house if the traditional power grid goes down. A cheaper, $3,000 version will have a 7kWh capacity, and it will be able to help a house with solar panels deal with the daily fluctuations in energy supply.