Pretty cool news from Tesla this week.  They’re launching a new product line of batteries called Powerwall, which uses solar panels to harvest and store energy for home use. The Powerwall creates enough electricity to power your home during the evening — when electricity demand peaks.  The Powerall also provides a back-up battery supply if the power goes out.

Powerwall starts at $3000 for a battery that can store 7 kilo-watt hours of power.  There’s also a 10 kW version for $3,500.  To give you an idea of how much power that is, a hairdryer uses 1 kW to run and a stove uses 3 kW.  So the Powerwall could provide enough energy for several hours of home use.  The Powerwall measures 3 feet by 4 feet and is 6 inches thick.  It can be hung inside or outside.

Sustainable energy that could cut your monthly electric bill — not too shabby you guys. Maybe we should invite Tesla CEO Elon Musk to do a guest blog?