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.
As the McKinsey study forecasts, the price for a complete automotive lithium-ion battery pack should fall from the current cost of approximately $600 per kilowatt hour to roughly $200 per kWh by 2020âand dip even further to $160 per kWh by 2025.