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 fact that current (2008) pack-level estimates for advanced Li-ion batteries range from about $750/kWh to $1000/kWh seems to substantiate the latter possibility. Additionally, the USABC battery cost goals for PHEV-10, PHEV-40, and pure EVs are shown in Figure 12.or example, for the PHEV-40 described in the prior analysis to be cost-competitive at July 2008 fuel prices, battery costs would have to be approximately $800/kWh; at December 2008 fuel prices, battery costs would have to decline to $170/kWh.